CN220338536U - Fume exhauster - Google Patents

Abstract

The utility model relates to a range hood, comprising: a body; the smoke baffle is rotationally connected to the machine body; the movement mechanism comprises a driving mechanism and a turnover bracket assembly connected with a power output end of the driving mechanism, and the turnover bracket assembly is also connected with the smoke baffle plate, so that the smoke baffle plate is driven by the driving mechanism to rotate relative to the machine body; the overturning bracket assembly comprises a first bracket connected with the power output end of the driving mechanism and a second bracket connected with the smoke baffle, the first bracket can rotate around an axis extending in the horizontal direction under the driving of the driving mechanism, and the first bracket and the second bracket are connected together in a rotating manner in which the rotation centers of the first bracket and the second bracket can be adjusted along the extending direction of the first bracket or the second bracket. The advantages are that: the turnover bracket component of the smoke baffle plate of the range hood is simplified, the production cost is reduced, and the turnover bracket component is positioned by the positioning pin, the sliding groove and different positioning holes which are formed in the corresponding bracket, so that the turnover bracket component is convenient and easy to operate, and the bracket is not easy to deform or damage.

Description

Fume exhauster

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a range hood.

Background

A range hood is a kitchen appliance that purifies the kitchen environment. Existing extractor hoods typically include a smoke baffle that can open or close the air intake, wherein the smoke baffle is typically mounted by a bracket secured to the smoke baffle and a hinge mechanism secured to the housing, however, the hinge mechanism typically limits the fixed opening angle and cannot be adjusted. Because the smoke baffle is fixed in opening angle, the user cannot adjust according to own kitchen environment, the opening angle is too large, the user can feel too strong aggressiveness, and the opening angle is too small, so that the smoke absorbing effect is poor. On the other hand, the two-stage smoke baffle on the market at present is generally opened by an angle smaller than 50 degrees, when a user wants to clean parts behind the smoke baffle, the user needs to bend down, and the user is hard to see the internal condition, so that the cleaning experience is poor.

In order to solve the technical problem, the prior application CN202021921771.1 (the authorized bulletin number is CN 213713167U) of the applicant of the present utility model is a range hood, which comprises a shell and a panel arranged at the front side of the shell, wherein an air inlet is formed in the panel, the range hood further comprises a smoke baffle plate capable of opening or closing the air inlet, the range hood further comprises a movement mechanism for driving the smoke baffle plate to turn over relative to the panel, the movement mechanism comprises a driving mechanism, a first transmission bracket driven to rotate by the driving mechanism and a smoke baffle plate bracket connected with the smoke baffle plate towards one side in the shell in a closed state, one end of the first transmission bracket is connected with the output end of the driving mechanism, the movement mechanism further comprises a folding mechanism connected with the smoke baffle plate bracket and capable of controlling the opening and closing angle of the smoke baffle plate, and the movement mechanism further comprises a second transmission bracket connected between the folding mechanism and the first transmission bracket. The folding mechanism comprises a first folding bracket and a second folding bracket which can rotate mutually, and a positioning mechanism for keeping the rotation angles of the first folding bracket and the second folding bracket. The positioning mechanism comprises at least one adjusting hole formed in one of the first end part of the first folding bracket and the first end part of the second folding bracket and a first positioning piece (positioning bead) which is used for being in clamping fit with the adjusting hole and is arranged on the other one of the first end part of the first folding bracket and the first end part of the second folding bracket. When the range hood is in a closed state, the included angle between the first folding support and the second folding support of the folding mechanism is zero, a rotating piece arranged at the joint of the second end part of the first folding support and the second transmission support is clamped in a clamping groove, the smoke baffle plate is locked and can not be opened manually at the moment, then an operating button is pressed down, an output shaft of the driving mechanism is enabled to rotate anticlockwise, the first transmission support is driven to rotate anticlockwise, the first transmission support drives the second transmission support, finally, the smoke baffle plate is driven to rotate with the rotation center of the rotation support, the smoke baffle plate is opened, the rotating piece at the moment is separated from the clamping groove, the smoke baffle plate is lifted forcefully, the second positioning beads are separated from the positioning holes, and the first folding support and the second folding support are fixed at different included angles through the cooperation of the first positioning beads and the second positioning holes, so that the smoke baffle plate can be fixed at different opening angles.

However, the range hood in the above patent application has a certain defect, and the folding structure for manually adjusting the opening angle of the smoke baffle is relatively complex in structure, that is, two folding brackets and a positioning mechanism are additionally arranged on the original smoke baffle overturning bracket, so that the production cost is relatively high, the angle of the positioning bead is used for positioning, the strength requirement on the overturning bracket is high, and otherwise, the corresponding bracket is easy to damage when the smoke baffle is opened and closed.

Disclosure of Invention

The utility model aims to solve the technical problem of the prior art, and provides the range hood which can open the smoke baffle plate to a larger angle so as to be convenient for cleaning.

The technical scheme adopted for solving the technical problems is as follows: a range hood, comprising:

the machine body is provided with an air inlet;

the smoke baffle is rotationally connected to the machine body and can open or close at least part of the area of the air inlet;

the movement mechanism comprises a driving mechanism arranged on the machine body and a turnover bracket assembly connected with a power output end of the driving mechanism, and the turnover bracket assembly is also connected with the smoke baffle plate, so that the smoke baffle plate is driven by the driving mechanism to rotate relative to the machine body;

the overturning bracket assembly comprises a first bracket connected with the power output end of the driving mechanism and a second bracket connected with the smoke baffle, wherein the first bracket can rotate around an axis extending in the horizontal direction under the driving of the driving mechanism, and the first bracket and the second bracket are rotationally connected together in a mode that the rotation centers of the first bracket and the second bracket can be adjusted along the extending direction of the first bracket or the second bracket.

In order to achieve the purpose of adjusting the rotation center position between the first support and the second support, the first end of the first support is connected with the power output end of the driving mechanism, the first end of the second support is connected with the smoke baffle, the second support is sequentially provided with at least two positioning holes along the length direction of the second support, the second end of the first support is provided with a positioning pin, and the positioning pin can be alternatively clamped into one of the positioning holes on the second support and is allowed to rotate around the positioning pin with the first support.

Generally, the requirement can be met only by setting the positioning holes independently, but the problem of inconvenient operation when switching to different positioning holes exists, therefore, the second bracket is also provided with a sliding groove which extends along the length direction and is communicated with each positioning hole, and the positioning pin on the first bracket is limited in the sliding groove in a sliding way and can be alternatively clamped into one of the positioning holes on the second bracket. In the sliding groove, a user can directly slide the locating pin along the sliding groove, and the operation convenience is good.

In order to realize smooth sliding of the positioning pin along the sliding groove and firm positioning between the positioning pin and the positioning holes, the width of the sliding groove is smaller than the diameter of each positioning hole, the second end part of the first bracket is plate-shaped and is provided with a mounting hole penetrating through the plate-shaped part, the positioning pin is movably restrained in the mounting hole of the first bracket along the axial direction of the positioning pin, the positioning pin is provided with a sliding section and a positioning section along the axial direction of the positioning pin, the diameter of the positioning section is larger than the width of the sliding groove on the second bracket and is basically consistent with the diameter of the positioning hole on the second bracket, and the diameter of the sliding section of the positioning pin is smaller than the width of the sliding groove on the second bracket or basically consistent with the width of the sliding groove on the second bracket.

In order to enable the locating pin to automatically clamp into the locating hole to achieve locating when moving to the position setting locating hole, two ends in the length direction of the locating pin are further provided with limiting blocking portions protruding outwards in the radial direction, the limiting blocking portions, adjacent to the locating section, of the two limiting blocking portions of the locating pin are marked as first blocking portions, the limiting blocking portions, far away from the locating section are marked as second blocking portions, the locating pin is further sleeved with a spring, the spring is propped between the peripheral portion of the mounting hole of the first support and the second blocking portions, and therefore the locating section of the locating pin always has a trend of clamping into the locating hole on the second support.

The number of the positioning holes on the second bracket can be set according to actual needs, but in order to simplify the structure of the second bracket, the number of the positioning holes on the second bracket is two, and the positioning holes are respectively positioned at two ends of the sliding groove on the second bracket.

In order to avoid interference problems during rotation between the first bracket and the second bracket, one of the positioning holes on the second bracket is arranged adjacent to the second end of the second bracket.

The smoke baffle is generally made of glass plates, and in order to achieve connection with the smoke baffle, a smoke baffle support is arranged on one side, facing the machine body, of the smoke baffle in a closed state, and the second support is rotatably connected with the smoke baffle support.

In order to realize the rotation connection between cigarette baffle and the organism, the motion still includes hinge bracket and relative hinge bracket pivoted runing rest, the inside top of hinge bracket and organism is connected, actuating mechanism and hinge bracket connection, one of them one end of runing rest is connected with hinge bracket rotation, and the other end is connected with cigarette baffle support.

In order to enable the front side part of the machine body to be exposed as much as possible for cleaning conveniently, the smoke baffle is rotationally connected to the upper part of the front side wall of the machine body, a cover plate capable of being turned and opened relative to the front side wall of the machine body is further arranged on the lower part of the front side wall of the machine body, and the cover plate in a covering state is connected with the smoke baffle in a closing air inlet state, so that a complete plate body structure is formed.

In order to firmly keep the cover plate in a covering state, and simultaneously, a user can conveniently open the cover plate outwards, the side edge of the lower part of the cover plate is rotationally connected to the machine body, and one side, facing the machine body, of the cover plate in the covering state is connected with the front side wall of the machine body through a touch buckle assembly.

Generally, the conventional buckling component can meet the requirement, but for adapting to the connection mode of the cover plate and the machine body of the range hood, the buckling component comprises a claw arranged on the side wall of the cover plate in a covering state towards the machine body and a buckling seat arranged on the front side wall of the machine body, and the buckling seat is provided with an elastic bayonet for the claw to be clamped into.

In order to open and hold the cover at a suitable angle, the lower side edge of the cover is connected to the body by a second hinge having a damping effect.

Compared with the prior art, the utility model has the advantages that: on the basis of original upset support, set up the connected mode between first support and the second support as both rotation center positions and can follow the extending direction of first support or second support and adjust, need not like this in the prior art additionally add folding mechanism, simplified the upset support subassembly of the cigarette baffle of range hood, reduction in production cost. In the preferred scheme, the locating pin is located with the corresponding sliding groove and different locating holes formed in the support, so that the support is convenient and easy to operate, and the support is not easy to deform or damage.

Drawings

Fig. 1 is a schematic perspective view of a range hood according to an embodiment of the present utility model (a smoke baffle is in a state of being opened at a small angle, and a cover plate is in a closed state);

fig. 2 is a schematic perspective view of a range hood according to an embodiment of the present utility model (a smoke baffle is in a wide-angle open state, and a cover is in an open state);

fig. 3 is a left side view of the range hood of fig. 2;

fig. 4 is a perspective view illustrating another angle of the range hood of fig. 2;

fig. 5 is a schematic perspective view of the range hood of fig. 1 with a left side plate omitted;

fig. 6 is a schematic perspective view of a motion mechanism of a range hood according to an embodiment of the present utility model;

FIG. 7 is a left side view of the movement mechanism shown in FIG. 6;

FIG. 8 is a cross-sectional view taken at A-A of FIG. 7;

fig. 9 is an enlarged view at a in fig. 8.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Referring to fig. 1-9, a range hood includes a body 10, the body 10 including a hood 11, and a fan system (not shown) that may be disposed in the hood 11. The embodiment specifically shows a near-suction type range hood, wherein the front side wall of the fume collecting hood 11 is inclined backwards from top to bottom. An air inlet 110 is formed in the front side wall of the fume collecting hood 11, wherein an air inlet port of a fan system arranged in the fume collecting hood 11 is opposite to the air inlet 110 on the fume collecting hood 11.

The front side wall of fume collecting hood 11 is further provided with a fume blocking plate 20 which can deflect back and forth relative to the front side wall of fume collecting hood 11 to open or close at least part of the area of air inlet 110 on fume collecting hood 11. Specifically, the dimension of the smoke baffle 20 in the left-right direction of the present embodiment substantially coincides with the dimension of the smoke collecting hood 11 in the left-right direction, and, in the closed state, the smoke baffle 20 can also shield the upper half area of the front side wall of the smoke collecting hood 11 in addition to the area where the air inlet 110 is located, thereby ensuring the beauty of the range hood in the closed state.

Referring to fig. 5 and 6, the smoke baffle 20 is connected with the smoke collecting hood 11 of the range hood through a movement mechanism, and is deflected back and forth under the driving of the movement mechanism. Specifically, the movement mechanism includes a drive mechanism 41, a flip bracket assembly, a swivel bracket 23, and a hinge bracket 12. The hinge bracket 12 is connected with the inner side of the top plate of the fume collecting hood 11, and the driving mechanism 41 is arranged on the hinge bracket 12, and a motor can be adopted specifically. A rotating bracket 23 is provided on a side wall (i.e., a back side) of the smoke baffle 20 facing the smoke collecting hood 11 in the closed state, and one end (an upper side edge adjacent to the smoke baffle 20) of the rotating bracket 23 is rotatably connected to the hinge bracket 12 by a first hinge 22, with a rotation axis extending substantially in the left-right direction therebetween. The other end of the rotary bracket 23 is connected to a smoke baffle bracket 21 also provided on the back side of the smoke baffle 20.

The turnover bracket assembly comprises a first bracket 51 connected with the power output end of the driving mechanism 41 and a second bracket 52 connected with the smoke baffle 20, wherein the first bracket 51 and the second bracket 52 are bar-shaped brackets. Specifically, a first end of the first bracket 51 is connected to an output shaft of the driving mechanism 41 (motor), wherein the output shaft of the driving mechanism 41 extends in the left-right direction, and the first bracket 51 is capable of deflecting with the output shaft of the driving mechanism 41 as a rotation center O under the driving of the driving mechanism 41. The first end of the second bracket 52 is rotatably connected to the smoke barrier 20, and the second bracket 52 is also rotatably connected to the first bracket 51. An important point of the present embodiment is that the rotation center O at which the first bracket 51 and the second bracket 52 rotate has a plurality, and specifically, the rotation center O therebetween may be located at a plurality of points in the extending direction of the first bracket 51 or in the extending direction of the second bracket 52.

Under the drive of the driving mechanism 41, the first bracket 51 deflects, and then the smoke baffle 20 is driven to open or close relative to the smoke collecting hood 11 by the deflection of the second bracket 52.

The second bracket 52 of the present embodiment is provided with at least two positioning holes 521 spaced apart along the length direction thereof, and a chute 522 extending along the length direction thereof and communicating with each positioning hole 521, wherein the width of the chute 522 is smaller than the diameter of the positioning hole 521. Correspondingly, the second end of the first bracket 51 is provided with a positioning pin 70, specifically, the second end of the first bracket 51 is plate-shaped and has a mounting hole 510 penetrating the plate-shaped portion. The diameter of the mounting hole 510 substantially coincides with the outer diameter of the body of the dowel 70, specifically the sliding section 73. The positioning pin 70 is movably restrained in the mounting hole 510 of the first bracket 51 in the axial direction thereof. The positioning pin 70 has a sliding section 73 and a positioning section 74 in its axial direction, wherein the diameter of the positioning section 74 is larger than the width of the slide groove 522 on the second bracket 52 and substantially coincides with the diameter of the positioning hole 521 on the second bracket 52. The diameter of the sliding section 73 of the positioning pin 70 is smaller than the width of the sliding slot 522 on the second bracket 52 or substantially coincides with the width of the sliding slot 522 on the second bracket 52, preferably, in this embodiment, the diameter of the sliding section 73 of the positioning pin 70 substantially coincides with the width of the sliding slot 522 on the second bracket 52, so as to ensure a smoother movement of the positioning pin 70 along the sliding slot 522 of the second bracket 52. The two ends of the positioning pin 70 in the length direction are also provided with limiting stops protruding outwards in the radial direction, wherein the limiting stop adjacent to the positioning section 74 is denoted as a first stop 71, and the limiting stop far from the positioning section 74 is denoted as a second stop 72. The first blocking portion 71 and the second blocking portion 72 are both larger than the diameter of the mounting hole 510 of the first bracket 51 and larger than the diameter of the positioning hole 521 of the second bracket 52. The positioning pin 70 of the present embodiment is further sleeved with a spring, which is specifically sleeved on the sliding section 73 of the positioning pin 70 and abuts between the peripheral portion of the mounting hole 510 of the first bracket 51 and the second blocking portion 72.

When the position of the positioning pin 70 (i.e. the rotation center O of the first bracket 51 and the second bracket 52) is adjusted, the user can press the positioning pin 70 axially, so that the positioning section 74 of the positioning pin 70 is separated from the positioning hole 521 of the second bracket 52, and the sliding section 73 of the positioning pin 70 is shifted into the sliding slot 522 of the second bracket 52, so that the positioning pin 70 can be moved to another positioning hole 521 along the sliding slot 522, when the positioning pin 70 is moved to the position of the positioning hole 521 of the second bracket 52, the positioning pin 70 is released, and under the action of the elastic force of the spring, the positioning section 74 on the positioning pin 70 can be automatically clamped into the positioning hole 521 on the second bracket 52, so that the positioning device is very convenient and quick.

In order to facilitate the installation of the spring and the positioning pin 70, one of the two stop portions on the positioning pin 70 may be a detachable nut member.

After the positioning section 74 of the positioning pin 70 is snapped into the positioning hole 521 of the second bracket 52, the positioning hole 521 cannot be easily disengaged due to the restriction of the positioning hole 521. The positioning hole 521 on the second bracket 52 and the mounting hole 510 on the first bracket 51 in this embodiment are circular holes, which also allows the second bracket 52 and the first bracket 51 to rotate around the positioning pin 70.

As shown in fig. 7, the number of the positioning holes 521 on the second bracket 52 in the present embodiment is two, and the positioning holes 521 are respectively located at two ends of the chute 522 on the second bracket 52. Preferably, to avoid interference problems during rotation between the first bracket 51 and the second bracket, one of the positioning holes 521 on the second bracket 52 is disposed adjacent to the second end of the second bracket 52.

The lower half of the front side wall of the fume collecting hood 11 is covered by a cover plate 30. In general, the lower cover 30 also covers the part of the air inlet 110 at the air inlet 110, and the cover 30 needs to be detached for cleaning the impeller inside the fume collecting hood 11, which is complicated, and therefore, another utility model point of the present embodiment is that the lower edge of the cover 30 is rotatably connected with the machine body 10 through the second hinge 32, so that the cover 30 can be turned over and opened relative to the front side wall of the machine body 10, and the front side part of the machine body 10 is exposed as much as possible, so as to facilitate cleaning and avoid the influence of the cover 30 on the disassembly of the air inlet 110 of the fan system at the air inlet 110. More specifically, the cover plate 30 in the closed state is engaged with the smoke baffle 20 in the state of closing the air inlet 110, so that a complete plate structure is formed, the whole of the front side wall of the smoke collecting hood 11 (i.e. the machine body 10) is basically shielded, and the aesthetic property of the range hood in the closed state is ensured.

Referring to fig. 2, the side of the cover plate 30 facing the inside of the body 10 in the closed state is further connected to the front side wall of the body 10 by a latch assembly 60. The latch assembly 60 includes a claw 61 and a latch seat 62, wherein a side of the cover 30 facing the machine body 10 is provided with (can be connected by adhesion) a cover bracket 31, and the claw 61 can be disposed on the cover bracket 31. The front side wall of the fume collecting hood 11 is provided with a buckling seat 62 at a position corresponding to the clamping jaw 61 on the cover plate 30, and the buckling seat 62 is provided with an elastic bayonet 620 for clamping the clamping jaw 61. The claw 61 and the latching seat 62 of the latching assembly 60 may be all of the prior art, and their specific structure and working principle are not described herein.

The second hinge 32 of this embodiment is provided with damping, so that the cover plate 30 can be fixed at any opening angle, and when the cover plate 30 needs to be closed, the cover plate 30 is pushed forcefully, so that the claw 61 is clamped in the elastic buckle of the buckling seat 62, and closing fastening can be realized.

The bottom of the fume collecting hood 11 is provided with an oil cup 80 extending leftwards and rightwards for receiving the oil dirt flowing down on the machine body 10.

The motion mechanism of the smoke baffle 20 of the range hood of the embodiment can be conveniently used for solving the problems of long time and complex operation of the impeller in the cleaning process, specifically, the smoke baffle 20 at the upper part is opened at a large angle, the air inlet 110 is exposed by being matched with the lower cover plate 30 to be opened, the air inlet 110 is conveniently and rapidly detached by a user, the impeller is exposed, and then the impeller is detached and cleaned.

Claims (13)

1. A range hood, comprising:

a machine body (10) having an air inlet (110);

a smoke baffle (20) rotatably connected to the body (10) and capable of opening or closing at least a part of the area of the air inlet (110);

the movement mechanism comprises a driving mechanism (41) arranged on the machine body (10) and a turnover bracket assembly connected with the power output end of the driving mechanism (41), and the turnover bracket assembly is also connected with the smoke baffle plate (20), so that the smoke baffle plate (20) is driven by the driving mechanism (41) to rotate relative to the machine body (10);

the method is characterized in that: the turnover support assembly comprises a first support (51) connected with a power output end of the driving mechanism (41) and a second support (52) connected with the smoke baffle plate (20), the first support (51) can rotate around an axis extending in the horizontal direction under the driving of the driving mechanism (41), and the first support (51) and the second support (52) are rotationally connected together in a mode that the rotation center (O) of the first support (51) or the second support (52) can be adjusted in the extending direction.

2. The range hood of claim 1, wherein: the first end of the first support (51) is connected with the power output end of the driving mechanism (41), the first end of the second support (52) is connected with the smoke baffle (20), at least two positioning holes (521) are sequentially formed in the second support (52) along the length direction of the second support, a positioning pin (70) is arranged at the second end of the first support (51), and the positioning pin (70) can be alternatively clamped into one of the positioning holes (521) in the second support (52) and allowed to rotate around the positioning pin (70) between the second support (52) and the first support (51).

3. The range hood of claim 2, wherein: the second bracket (52) is also provided with a chute (522) which extends along the length direction and is communicated with each positioning hole (521), and the positioning pin (70) on the first bracket (51) is limited in the chute (522) in a sliding way and can be alternatively clamped into one of the positioning holes (521) on the second bracket (52).

4. A range hood according to claim 3, wherein: the width of the sliding groove (522) is smaller than the diameter of each positioning hole (521), the second end of the first bracket (51) is plate-shaped and is provided with a mounting hole (510) penetrating through the plate-shaped part, the positioning pin (70) is movably restrained in the mounting hole (510) of the first bracket (51) along the axial direction of the positioning pin, the positioning pin (70) is provided with a sliding section (73) and a positioning section (74) along the axial direction of the positioning pin, the diameter of the positioning section (74) is larger than the width of the sliding groove (522) on the second bracket (52) and is basically consistent with the diameter of the positioning hole (521) on the second bracket (52), and the diameter of the sliding section (73) of the positioning pin (70) is smaller than the width of the sliding groove (522) on the second bracket (52) or is basically consistent with the width of the sliding groove (522) on the second bracket (52).

5. The range hood of claim 4, wherein: the two ends in the length direction of the locating pin (70) are also provided with limiting blocking parts protruding outwards in the radial direction, the limiting blocking part adjacent to the locating section (74) in the two limiting blocking parts of the locating pin (70) is marked as a first blocking part (71), the limiting blocking part far away from the locating section (74) is marked as a second blocking part (72), the locating pin (70) is further sleeved with a spring, and the spring is propped between the peripheral part of the mounting hole (510) of the first bracket (51) and the second blocking part (72), so that the locating section (74) on the locating pin (70) always has a trend of being blocked into the locating hole (521) on the second bracket (52).

6. A range hood according to claim 3, wherein: the positioning holes (521) on the second bracket (52) are provided with two positioning holes which are respectively positioned at two ends of the sliding groove (522) on the second bracket (52).

7. The range hood of claim 6, wherein: one of the locating holes (521) on the second bracket (52) is arranged adjacent to the second end of the second bracket (52).

8. The range hood according to any one of claims 1 to 7, wherein: the smoke baffle (20) is provided with a smoke baffle support (21) towards one side in the machine body (10) in a closed state, and the second support (52) is rotationally connected with the smoke baffle support (21).

9. The range hood of claim 8, wherein: the movement mechanism further comprises a hinge bracket (12) and a rotating bracket (23) rotating relative to the hinge bracket (12), the hinge bracket (12) is connected with the inner side of the top of the machine body (10), the driving mechanism (41) is connected with the hinge bracket (12), one end of the rotating bracket (23) is rotationally connected with the hinge bracket (12), and the other end of the rotating bracket is connected with the smoke baffle bracket (21).

10. The range hood according to any one of claims 1 to 7, wherein: the smoke baffle (20) is rotationally connected to the upper part of the front side wall of the machine body (10), a cover plate (30) capable of being turned over and opened relative to the front side wall of the machine body (10) is further arranged on the lower part of the front side wall of the machine body (10), and the cover plate (30) in a covering state is connected with the smoke baffle (20) in a closing state of the air inlet (110), so that a complete plate body structure is formed.

11. The range hood of claim 10, wherein: the lower side edge of the cover plate (30) is rotationally connected to the machine body (10), and one side, facing the interior of the machine body (10), of the cover plate (30) in a covering state is connected with the front side wall of the machine body (10) through a buckling component (60).

12. The range hood of claim 11, wherein: the buckling assembly (60) comprises a claw (61) arranged on the side wall of the cover plate (30) in a covering state facing the inside of the machine body (10) and a buckling seat (62) arranged on the front side wall of the machine body (10), wherein the buckling seat (62) is provided with an elastic bayonet (620) for the claw (61) to be clamped in.

13. The range hood of claim 11, wherein: the lower side edge of the cover plate (30) is connected with the machine body (10) through a second hinge (32) with damping effect.