CN112902254A - Air inlet assembly and range hood with same - Google Patents

Abstract

The invention discloses an air inlet assembly, which comprises a panel, wherein an air inlet is formed in the panel, and the air inlet comprises a first air inlet area and a second air inlet area which are arranged in parallel; the baffle plate assembly comprises a first baffle plate and a second baffle plate; the motion mechanism comprises a driving mechanism and a transmission mechanism, the transmission mechanism comprises a first driving rod, a second driving rod, a third driving rod and a fourth driving rod, the first ends of the first driving rod and the second driving rod are respectively connected with the third driving rod in a rotating way, the second ends of the first driving rod and the second driving rod are respectively connected with the fourth driving rod in a rotating way, the third driving rod is connected with the first baffle, and the fourth driving rod is connected with the second baffle; the driving mechanism drives the first driving rod and the second driving rod to rotate, so that the first baffle plate can move to the position where the first air inlet is shielded or move to the position where the first air inlet is staggered, and the second baffle plate can move to the position where the second air inlet is shielded or move to the position where the second air inlet is staggered. Still disclose a range hood that uses and have above-mentioned air inlet subassembly.

Description

Air inlet assembly and range hood with same

Technical Field

The invention relates to an oil fume purification device, in particular to an air inlet component and a range hood applying the air inlet component.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The side-draft range hood absorbs most of oil smoke close to a cooking bench in an arc form by using a vortex air pressure principle, so that adverse effects on human health can be reduced, and the suction effect of a power source is basically not reduced because the power source is close to the cooking bench.

The range hood disclosed in chinese patent application No. 201820960220.2 includes a smoke collection chamber, a panel structure disposed at the front side of the smoke collection chamber, an oil filter plate disposed on the panel structure, a smoke barrier plate covering the oil filter plate and a driving device for driving the smoke barrier plate.

The air inlet of the existing range hood can only be in a completely opened or completely closed state through the movement of the smoke baffle plate, when a user cooks on one side, the air quantity of the range hood cannot be effectively utilized to effectively suck oil smoke, so that the range hood is easy to leak smoke during single-side cooking at a small gear, and the range hood is too loud in noise and cannot realize efficient static suction when at a large gear.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide an air intake assembly, which can realize high-efficiency smoking with low noise, in view of the above-mentioned shortcomings of the prior art.

The second technical problem to be solved by the invention is to provide a range hood with the air inlet assembly.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides an air inlet subassembly, includes the panel, the air intake has been seted up on the panel, the air intake is regional including the first air inlet that arranges side by side and second air inlet, its characterized in that: the air inlet assembly also comprises a baffle plate assembly and a movement mechanism for driving the baffle plate assembly to act; the baffle plate assembly comprises a first baffle plate and a second baffle plate; the motion mechanism comprises a driving mechanism and a transmission mechanism, the transmission mechanism transmits the output of the driving mechanism to the first baffle and the second baffle, the transmission mechanism comprises a first driving rod, a second driving rod, a third driving rod and a fourth driving rod, the first driving rod and the second driving rod are respectively in rotary connection with the third driving rod, the first driving rod and the second driving rod are respectively in rotary connection with the fourth driving rod, the third driving rod is also fixedly connected with the first baffle, and two ends of the fourth driving rod are also fixedly connected with the second baffle; drive mechanism and at least one cooperation in first actuating lever and the second actuating lever to drive first actuating lever and second actuating lever and rotate, make first baffle can move to shelter from first air inlet region or move to stagger with first air inlet region, and make the second baffle can move to shelter from the second air inlet region or move to stagger with the second air inlet region, first baffle and second baffle can move towards corresponding air inlet region simultaneously or leave corresponding air inlet region, another leaves corresponding air inlet region when one of them moves towards corresponding air inlet region.

Preferably, in order to enable the first driving rod and the second driving rod to stably drive the two baffles, each driving rod is respectively provided with a first end and a second end which are opposite to each other, the first ends of the first driving rod and the second driving rod are respectively rotatably connected with two ends of the third driving rod, the second ends of the first driving rod and the second driving rod are respectively rotatably connected with two ends of the fourth driving rod, two ends of the third driving rod are respectively connected and fixed with the first baffle, and two ends of the fourth driving rod are respectively connected and fixed with the second baffle; the first driving rod, the second driving rod, the third driving rod and the fourth driving rod form a quadrangle.

Preferably, in order to facilitate the change of the state of the barrier by a simple movement, thereby ensuring the stability of the movement, the transmission mechanism further comprises a slider capable of moving linearly with respect to the panel, and the slider is rotatably connected to at least one of the first driving rod and the second driving rod, thereby moving the first barrier and the second barrier linearly.

In order to facilitate the movement of the driving slide block and realize the reverse movement and the same-direction movement of the two baffle plates, the driving mechanism also comprises an output shaft capable of rotating around the axis of the driving mechanism and a motor for driving the output shaft to rotate, and the output end of the motor is directly or indirectly connected with the output shaft so as to drive the output shaft to rotate; the transmission mechanism comprises an output shaft, a swing rod, a connecting rod and a driving rod, wherein the swing rod is arranged on the output shaft and can swing in a reciprocating mode under the action of the output shaft, the connecting rod is provided with a first end and a second end which are opposite to each other, the first end of the connecting rod is rotatably connected with the swing rod, the second end of the connecting rod is rotatably connected with a sliding block, and rotating shafts of the driving rod, the swing rod and the connecting rod are parallel to the output shaft.

In order to enable the connecting rod to stably rotate, the transmission mechanism further comprises a transmission rod, the first end of the transmission rod is rotatably connected with the position, between the two ends, of the connecting rod, the second end of the transmission rod is rotatably connected with the second driving rod, and the rotating shaft of the transmission rod is parallel to the output shaft.

In order to enable the sliding block to move stably, the moving mechanism further comprises a guide rail fixedly connected with the panel, the guide rail extends along the moving path of each baffle, and the sliding block is connected with the guide rail in a sliding mode.

Preferably, the first baffle plate is sized to completely shield the first air inlet area, and the second baffle plate is sized to completely shield the second air inlet area.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the utility model provides an be applied to range hood as above air inlet subassembly, includes the casing, the panel sets up the front side at the casing, its characterized in that: baffle subassembly and motion set up the rear side in the panel orientation casing, the regional and second air inlet region of first air inlet is controlled and is set up side by side.

Further, in order to open and close the air inlet, the range hood further comprises a smoke baffle plate which opens and closes the air inlet from the front side of the panel.

Compared with the prior art, the invention has the advantages that: by arranging the movable baffle plate, the air inlet area corresponding to the baffle plate can be selectively opened or closed, and the reasonable distribution of the air inlet volume of the air inlet area is realized; when using among the range hood, when user unilateral culinary art, range hood starts the intake of non-culinary art side when the little gear to increase the air inlet speed of culinary art side oil smoke, realize the low noise, high-efficient smoking, when reducing the energy consumption, realize the silence and prevent to run the cigarette.

Drawings

Fig. 1 is a schematic view of a range hood in a closed state according to an embodiment of the present invention;

FIG. 2 is a schematic view of a fully opened range hood according to an embodiment of the present invention;

FIG. 3 is a schematic view of hidden parts of the range hood of FIG. 2;

FIG. 4 is a schematic view of a moving mechanism and a baffle assembly of the range hood of FIG. 3;

FIG. 5 is a partially exploded view of the movement mechanism of the range hood of FIG. 4;

FIG. 6 is a schematic diagram of a right-opening state of the range hood according to the embodiment of the present invention;

FIG. 7 is a schematic view of hidden parts of the range hood of FIG. 6;

FIG. 8 is a schematic view of the range hood according to the embodiment of the present invention in a left-open state;

fig. 9 is a schematic view of hidden parts of the range hood of fig. 8;

FIG. 10 is a schematic view of a range hood according to an embodiment of the present invention in a left-right half-open state;

fig. 11 is a schematic view of hidden parts of the extractor hood of fig. 10.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 and 2, a range hood, which is a side-draft range hood, includes a housing 1 and a panel 2 disposed at the front side of the housing 1. An air inlet 21 is formed in the panel 2, and an oil screen assembly 3 is arranged at the air inlet 21. The panel 2 is inclined from top to bottom. The fan system can be arranged in the shell 1, and also can be arranged above the shell 1, and the structure can adopt the prior art.

The oil screen assembly 3 may be of an integrated structure, or as shown in the present invention, includes a first oil screen 31 located on the left side and a second oil screen 32 located on the right side, where the first oil screen 31 and the second oil screen 32 are arranged side by side left and right, so that the air inlet 21 is correspondingly divided into a first air inlet area 211 located on the left side and a second air inlet area 212 located on the right side, and the first air inlet area 211 and the second air inlet area 212 together form a complete integrated air inlet 21. Preferably, the first oil net 31 and the second oil net 32 have the same size, that is, the first air intake region 211 and the second air intake region 212 have the same size and have a completely symmetrical structure. The first oil screen 31 and the second oil screen 32 are preferably grid screens, but may be replaced by other types of existing oil screens. When the oil screen assembly 3 is not provided, the air inlet 21 may be divided into the first air inlet region 211 and the second air inlet region 212.

Referring to fig. 3 to 5, a baffle assembly and a moving mechanism for driving the baffle assembly to move are disposed in the housing 1 and behind the panel 2, and the panel 2, the baffle assembly and the moving mechanism form an air intake assembly. The baffle assembly includes a first baffle 41 and a second baffle 42, the first baffle 41 corresponds to the first air intake region 211, the second baffle 42 corresponds to the second air intake region 212, and the first baffle 41 and the second baffle 42 are parallel to the panel 2, respectively. The flapper assembly abuts the panel 2 with only a small gap for movement of the flapper assembly. The first baffle 41 and the second baffle 42 have the same structure, and preferably, both the first baffle 41 and the second baffle 42 have a rectangular shape, and the air inlet 21 has a rectangular shape. The length of the first baffle 41 is not less than the length of the first air intake region 211, the height of the first baffle 41 is not less than the height of the first air intake region 211, the length of the second baffle 42 is not less than the length of the second air intake region 212, and the height of the second baffle 42 is not less than the height of the second air intake region 212. The first shutter 41 can completely block the first intake area 211, and the second shutter 42 can completely block the second intake area 212.

Here, "length" refers to a dimension in the left-right direction shown in fig. 3, and "height" refers to a dimension in the up-down direction shown in fig. 3. The front, back, left, right, up and right are all the directions relative to the user when in use.

The moving mechanism can drive the first shutter 41 and the second shutter 42 to move up and down in the direction of the inclined extension of the panel 2. The motion mechanism comprises a driving mechanism 51 and a transmission mechanism, the driving mechanism 51 comprises a motor 511 and an output shaft 512 in the embodiment, and the motor 511 can be replaced by other driving devices capable of outputting torque. The output shaft 512 of the driving mechanism 51 extends in the front-rear direction, and the output end of the motor 511 may be directly connected to the output shaft 511 by extending in the same direction as the output shaft 511, or the output end of the motor 511 may be connected to the output shaft 512 via a transmission mechanism by extending in the left-right direction to switch the output direction. That is, the output shaft 512 may be directly or indirectly connected to the output end of the motor 511, as long as the output shaft 512 is finally extended in the front-rear direction, and the output shaft 512 can rotate around its axis by the driving of the motor 511.

The transmission mechanism comprises a swing rod 523, the swing rod 523 may be a centrosymmetric structure or a non-centrosymmetric structure, when the swing rod 523 is the centrosymmetric structure, the swing rod 523 is eccentrically connected with the output shaft 512, and when the swing rod 523 is the non-centrosymmetric structure, the swing rod 523 may be connected with the output shaft 512 at any position. Thereby, the swing lever 523 can swing back and forth left and right around the output shaft 512. In this embodiment, the swing link 523 is connected to the front end of the output shaft 512, and the motor 511 is connected to the rear end of the output shaft 512.

The transmission mechanism further includes a connecting rod 533, a transmission rod 534, a first drive rod 535, a second drive rod 536, a third drive rod 537, a fourth drive rod 538 and a slider 539, each having respective first and second opposite ends and each having an axis of rotation parallel to the output shaft 512 of the drive mechanism 51.

The output shaft 512 of the driving mechanism 51 is rotatably connected to one end of the swinging rod 523, the other end of the swinging rod 523 is rotatably connected to a first end of the connecting rod 533, and a second end of the connecting rod 533 is rotatably connected to a lower end of the sliding block 539. The first drive lever 535 and the second drive lever 536 are equal in length, the third drive lever 537 and the fourth drive lever 538 are equal in length, and the length of the first drive lever 535 is greater than the length of the third drive lever 537. The first driving lever 535 and the second driving lever 536 both extend transversely, and the third driving lever 537 and the fourth driving lever 538 both extend longitudinally and in line with the extension direction of the panel 2. The first driving rod 535 is disposed above the second driving rod 536, the first ends of the first driving rod 535 and the second driving rod 536 are respectively connected to two ends of the third driving rod 537, and the second ends of the first driving rod 535 and the second driving rod 536 are respectively connected to two ends of the fourth driving rod 538, so that the four driving rods form a deformable parallelogram. Both ends of the third driving rod 537 are also connected to the rear side of the first baffle plate 41, respectively, and both ends of the fourth driving rod 538 are also connected to the rear side of the second baffle plate 42, respectively. The connection positions of the third driving lever 537 and the first shutter 41 respectively coincide with the connection positions of the corresponding first and second driving levers 535 and 536, and the connection positions of the fourth driving lever 538 and the second shutter 42 respectively coincide with the connection positions of the corresponding first and second driving levers 535 and 536. The third drive rod 557 and the fourth drive rod 558 remain extended on the travel path of the respective shutter.

The upper end of the sliding block 539 is rotatably connected to the middle of the first driving lever 535, and the lower end of the sliding block 539 is rotatably connected to the middle of the second driving lever 536. Alternatively, the sliding block 539 may be connected to only one of the first and second drive levers 535, 536, i.e., to at least one of the first and second drive levers 535, 536. The sliding block 539 is rotatably connected to the connecting rod 533 and the second driving rod 536 at the same position. A first end of the transmission rod 534 is rotatably connected to the connecting rod 533 at a position between the two ends, a second end of the transmission rod 534 is rotatably connected to the second driving rod 536, and a connection point of the transmission rod 534 and the second driving rod 536 may be adjacent to a connection point of the sliding block 539 and the second driving rod 536 and be close to the first shutter 41.

The movement mechanism further comprises a first guide 529 and a second guide 530, the first guide 529 and the second guide 530 extending longitudinally and being inclined in the same direction as the panel 2. The upper and lower ends of the first guide rail 529 are fixedly connected to the rear side of the panel 2, and the upper and lower ends of the second guide rail 530 are fixedly connected to the rear side of the panel 2. First guide rail 529 and second guide rail 530 may be provided only on the side where first shutter 41 and second shutter 42 are close to each other, and do not engage with each shutter, but rather, slide 539 is slidably provided on first guide rail 529 and second guide rail 530. Alternatively, the first guide rail 529 and the second guide rail 530 may have only one.

The rotational axes of the connecting rods, the transmission rods and the drive rods are all parallel to the output shaft 512 of the drive mechanism 51. The length direction of each guide rod is vertical to the rotating shaft of the corresponding connecting rod, and the length direction of each guide rod is vertical to the moving path of the corresponding baffle.

The moving mechanism further comprises a mounting bracket 53, the mounting bracket 53 is arranged at a position close to the bottom end of the rear side of the panel 2, and the motor 511 of the driving mechanism 51 is fixedly connected to the rear side of the mounting bracket 53.

In this embodiment, the first baffle 41 and the second baffle 42 are located at the rear side of the panel 2 and below the air inlet 21, and can move upward to block the air inlet 21 and move downward to be staggered with the air inlet 21. In the invention, the term "shielding" means that the projection on the panel 2 and the air inlet area on the corresponding side have an overlapping area, and can be partially overlapped or completely overlapped; the term "staggered" means that the projection of the baffle on the panel 2 does not have an overlapping area with the air intake area on the corresponding side, and the air intake in the air intake area cannot be blocked. Alternatively, the mounting bracket 53 and the driving mechanism 51 may be disposed at a position on the rear side of the panel 2 above the air inlet 21, and corresponding components of the transmission mechanism are also disposed at a position on the rear side of the panel 2 above the air inlet 21, so that the first baffle plate 41 and the second baffle plate 42 are located at positions on the rear side of the panel 2 above the air inlet 21 and can move downward to block the air inlet 21.

Referring again to fig. 1 and 2, the range hood further includes a smoke barrier 6 that can be turned over with respect to the panel 2, thereby opening or closing the air inlet 21 at the front side of the panel 2. The structure of the smoke baffle 6 and the driving mechanism of the smoke baffle 6 are the same as the prior art. Alternatively, the smoke barrier 6 may also translationally open or close the air inlet 21. Fig. 1 shows the smoke barrier 6 in a closed state, and fig. 2 shows the smoke barrier 6 in an open state.

This embodiment can realize four air intake states of the air intake 21:

referring to fig. 2 and 3, when both sides of the dual-range are cooked, the smoke barrier 6 is opened, both sides of the amount of oil smoke are large, and if the amount of oil smoke is greater than a preset value a, the first baffle 41 and the second baffle 42 are in an initial state, the first baffle 41 and the second baffle 42 are both located below the air inlet 21, so that the air inlet 21 is in a fully opened state, the driving mechanism 51 is not started, the swing link 523 and the connecting rod 533 are both in a state parallel to the first guide rail 529 (the second guide rail 530), and one end of the swing link 523 connected to the output shaft 512 is located above. In this state (double suction), the difference between the wind speeds of the upper and lower wind inlets 21 is small, and the wind speeds are uniform.

Referring to fig. 10 and 11, under the condition that the cooking utensils both sides of two kitchen ranges are all cooked, keep off the cigarette board 6 and open, oil smoke volume both sides are all not greater than predetermined a value this moment, then start actuating mechanism 51, make pendulum rod 523 rotate 180, thereby the one end that pendulum rod 523 and output shaft 512 are connected is down, because connecting rod 533 is connected with pendulum rod 523, consequently, connecting rod 533 is upwards promoted by pendulum rod 523, and then slider 539 upwards promotes, make the whole upwards promotion of parallelogram that the actuating lever constitutes, and then first baffle 41 and second baffle 42 all upwards move, the part shelters from corresponding air inlet region (preferred can be for partly hiding), make the left and right sides all be in the state of strong absorption. In this state (double strong suction), the baffle is used to shield the lower part space of the air inlet area, reduce the air inlet speed at the lower end, improve the air inlet speed at the upper end, change the distribution state of the air inlet air speed, and have better smoking effect than the double suction state when the oil smoke is far away from the air inlet 21.

Referring to fig. 6 and 7, in case of cooking on the right side of the dual-burner cooker, the smoke barrier 6 is opened, and at this time, the amount of oil smoke is large on the right side, the driving mechanism 51 is activated to rotate the swing link 523 to the left side, so as to drive the lower end of the connecting rod 533 to rotate upward to the left side, at this time, the end of the transmission rod 534 connected to the connecting rod 533 is pushed upward (with rotation at the same time) under the driving of the connecting rod 533, the sliding block 539 is pushed upward, due to the single-sided force, the first driving rod 535 and the second driving rod 536 respectively rotate around the fourth driving rod 538 leftwards and upwards under the action of the sliding block 539 and the driving rod 534, so that the first shutter 41 moves upward, until it blocks the corresponding first air intake region 211, thereby close first air inlet region 211 for the left flow reduces, makes range hood be in the state of opening to the right, thereby strengthens the air inlet speed of right side culinary art side oil smoke. Thereafter, if the initial state needs to be restored, the motor 511 is simply rotated reversely so that the swing lever 523 returns to the initial state (the end connected to the output shaft 512 is located downward).

Referring to fig. 8 and 9, in case of cooking on the left side of the dual-burner cookers, the smoke barrier 6 is opened, and the amount of oil smoke is large on the right side at this time, the driving mechanism 51 is activated to rotate the swing link 523 to the right side, so as to drive the lower end of the connecting rod 533 to rotate upward and rightward, at this time, the end of the transmission rod 534 connected to the connecting rod 533 is pushed upward (with rotation at the same time) under the driving of the connecting rod 533, the sliding block 539 is pushed upward, due to the single-sided force, the first driving rod 535 and the second driving rod 536 rotate around the third driving rod 537 to the right and upward under the action of the sliding block 539 and the driving rod 534, so that the second shutter 42 is moved upward, until the corresponding second intake air region 212 is shielded, thereby closing the second air intake area 212, reducing the flow on the right side, and enabling the range hood to be in a left-open state, thereby increasing the air intake speed of the cooking side oil smoke on the left side. Thereafter, if the initial state needs to be restored, the motor 511 is simply rotated reversely so that the swing lever 523 returns to the initial state (the end connected to the output shaft 512 is located downward).

Claims (9)

1. The utility model provides an air inlet subassembly, includes panel (2), air intake (21) have been seted up on panel (2), air intake (21) are including arranging side by side first air inlet region (211) and the regional (212) of second air inlet, its characterized in that: the air inlet assembly also comprises a baffle plate assembly and a movement mechanism for driving the baffle plate assembly to act;

the baffle plate assembly comprises a first baffle plate (41) and a second baffle plate (42);

the movement mechanism comprises a driving mechanism (51) and a transmission mechanism, the transmission mechanism transmits the output of the driving mechanism (51) to the first baffle plate (41) and the second baffle plate (42), the transmission mechanism comprises a first driving rod (535), a second driving rod (536), a third driving rod (537) and a fourth driving rod (538), the first driving rod (535) and the second driving rod (536) are respectively and rotatably connected with the third driving rod (537), the first driving rod (535) and the second driving rod (536) are respectively and rotatably connected with the fourth driving rod (538), the third driving rod (537) is also fixedly connected with the first baffle plate (41), and two ends of the fourth driving rod (538) are also fixedly connected with the second baffle plate (42);

the driving mechanism (51) is matched with at least one of the first driving rod (535) and the second driving rod (536) so as to drive the first driving rod (535) and the second driving rod (536) to rotate, so that the first baffle plate (41) can move to block the first air inlet area (211) or move to be staggered with the first air inlet area (211), and the second baffle plate (42) can move to block the second air inlet area (212) or move to be staggered with the second air inlet area (212), the first baffle plate (41) and the second baffle plate (42) can move towards or away from the corresponding air inlet area at the same time, and the first baffle plate (41) and the second baffle plate (42) can also move away from the corresponding air inlet area when one moves towards the corresponding air inlet area.

2. The intake assembly of claim 1, wherein: each driving rod is provided with a first end and a second end which are opposite, the first ends of the first driving rod (535) and the second driving rod (536) are respectively connected with two ends of a third driving rod (537) in a rotating manner, the second ends of the first driving rod (535) and the second driving rod (536) are respectively connected with two ends of a fourth driving rod (538) in a rotating manner, two ends of the third driving rod (537) are respectively connected and fixed with a first baffle (41), and two ends of the fourth driving rod (538) are respectively connected and fixed with a second baffle (42); the first driving rod (535), the second driving rod (536), the third driving rod (537) and the fourth driving rod (538) form a quadrangle.

3. The intake assembly of claim 1, wherein: the transmission mechanism further comprises a sliding block (539) which can move linearly relative to the panel (2), and the sliding block (539) is rotatably connected with at least one of the first driving rod (535) and the second driving rod (536) so as to enable the first baffle plate (41) and the second baffle plate (42) to move linearly.

4. The intake assembly of claim 3, wherein: the driving mechanism (51) further comprises an output shaft (512) capable of rotating around the axis of the driving mechanism and a motor (511) for driving the output shaft (512) to rotate, wherein the output end of the motor (511) is directly or indirectly connected with the output shaft (512) so as to drive the output shaft (512) to rotate; the transmission mechanism comprises an output shaft (512), a swing rod (523) which is driven by the output shaft (512) to swing in a reciprocating mode is arranged on the output shaft (512), the transmission mechanism further comprises the swing rod (523) and a connecting rod (533), the swing rod (523) is arranged on the output shaft (512) and can be driven by the output shaft (512) to swing in a reciprocating mode, the connecting rod (533) is provided with a first end and a second end which are opposite to each other, the first end of the connecting rod (533) is rotatably connected with the swing rod (523), the second end of the connecting rod (533) is rotatably connected with a sliding block (539), and rotating shafts of all driving rods, the swing rod (523) and the connecting rod (533) are parallel to.

5. The intake assembly of claim 4, wherein: the transmission mechanism further comprises a transmission rod (534), a first end of the transmission rod (534) is rotatably connected with a position, between two ends, of the connecting rod (533), a second end of the transmission rod (534) is rotatably connected with the second driving rod (536), and a rotating shaft of the transmission rod (534) is parallel to the output shaft (512).

6. The intake assembly of claim 3, wherein: the movement mechanism also comprises a guide rail fixedly connected with the panel (2), the guide rail extends along the moving path of each baffle, and the sliding block (539) is connected with the guide rail in a sliding mode.

7. The air intake assembly of any one of claims 1 to 6, wherein: the first baffle (41) is sized to completely block the first air intake region (211), and the second baffle (42) is sized to completely block the second air intake region (212).

8. A range hood applying the air intake assembly as claimed in any one of claims 1 to 7, comprising a housing (1), wherein the panel (2) is arranged at the front side of the housing (1), and is characterized in that: baffle subassembly and motion set up in panel (2) towards the rear side in casing (1), first air inlet region (211) and second air inlet region (212) are controlled and are set up side by side.

9. The range hood of claim 8, wherein: the range hood also comprises a smoke baffle (6) which opens and closes the air inlet (21) from the front side of the panel (2).

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