CN112902255A - 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, the air inlet comprises a first air inlet area and a second air inlet area which are arranged in parallel, 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 movement mechanism comprises a driving mechanism and a transmission mechanism, the transmission mechanism comprises a first connecting rod and a second connecting rod, the first connecting rod is connected with the first baffle, and the second connecting rod is connected with the second baffle; the driving mechanism can be selectively matched with the first connecting rod or the second connecting rod to drive the first connecting rod or the second connecting rod to rotate, so that the first baffle plate can be moved to block a first air inlet area or be moved to be staggered with the first air inlet area, or the second baffle plate can be moved to block a second air inlet area or be moved to be staggered with the second air inlet area. 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 movement 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 connecting rod and a second connecting rod, the first connecting rod is connected with the first baffle, and the second connecting rod is connected with the second baffle; the driving mechanism can be selectively matched with the first connecting rod or the second connecting rod to drive the first connecting rod or the second connecting rod to rotate, so that the first baffle plate can be moved to block a first air inlet area or be moved to be staggered with the first air inlet area, or the second baffle plate can be moved to block a second air inlet area or be moved to be staggered with the second air inlet area.

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 first link is rotatably connected to the first barrier, thereby causing the first barrier to move linearly, and the second link is rotatably connected to the second barrier, thereby causing the second barrier to move linearly.

In order to facilitate the driving mechanism to drive the connecting rods to rotate, the transmission mechanism further comprises a swing rod, the driving mechanism further comprises an output shaft capable of rotating around the axis of the driving mechanism, the output shaft is connected with the swing rod and can drive the swing rod to swing in a reciprocating mode, the swing rod can be selectively matched with the first connecting rod or the second connecting rod so as to push the first connecting rod and the second connecting rod to rotate, and rotating shafts of the first connecting rod and the second connecting rod are parallel to the output shaft respectively.

In order to conveniently match the swing rod with each connecting rod, a first groove is formed at the end part of the first connecting rod close to the swing rod, the first groove is formed by sinking the end part of the first connecting rod to the inner part of the first connecting rod, a second groove is formed at the end part of the second connecting rod close to the swing rod, the second groove is formed by sinking the end part of the second connecting rod to the inner part of the second connecting rod, and the swing rod can be directly or indirectly jointed with the first groove and the second groove.

Preferably, the swing link is indirectly connected with each connecting rod, and the swing link is provided with a driving lever which can be selectively inserted into the first groove or the second groove along with the swing of the swing link to be connected, so that the driving lever can drive the first connecting rod or the second connecting rod to rotate.

In order to drive the output shaft to rotate, the driving mechanism further comprises a motor for driving the output shaft to rotate, and an output end of the motor is directly or indirectly connected with the output shaft so as to drive the output shaft to rotate.

In order to enable the rotation of each connecting rod to be smoothly converted into the linear movement of the corresponding baffle, the transmission mechanism further comprises a first supporting rod, a second supporting rod, a first guide rod and a second guide rod; the first support rod is rotatably connected with the first connecting rod, and the second support rod is rotatably connected with the second connecting rod; be provided with first connecting sleeve on the first bracing piece, be provided with second connecting sleeve on the second bracing piece, first guide bar sets up on first baffle, the second guide bar sets up on the second baffle, first connecting sleeve cover is established in first guide bar periphery and can be removed along the length direction of first guide bar, the second connecting sleeve cover is established in the second guide bar periphery and can be removed along the length direction of second guide bar, and the axis of rotation of each connecting rod and bracing piece is parallel to each other, and the length direction of each guide bar is perpendicular with the axis of rotation of corresponding connecting rod, and the length direction of each guide bar is perpendicular with the removal route that still is corresponding baffle.

In order to guide the linear movement of each baffle plate, the motion mechanism further comprises a first guide rail and a second guide rail, the first guide rail extends along the movement path of the first baffle plate, the second guide rail extends along the movement path of the second baffle plate, the first baffle plate is connected with the first guide rail in a sliding mode, and the second baffle plate is connected with the second guide rail in a sliding mode.

In order to facilitate the matching of each baffle and the corresponding guide rail, a first folding edge is arranged on the first baffle, the first folding edge is annular, and the first guide rail penetrates through the inside of the first folding edge to form sliding connection; and a second folded edge is arranged on the second baffle plate, the second folded edge is annular, and the second guide rail penetrates through the inside of the second folded edge to form sliding connection.

In order to facilitate the arrangement of the guide rails, a guide rail bracket and a flanging protruding towards one side of the baffle plate assembly are arranged on the panel, one end of each of the first guide rail and the second guide rail is fixedly connected with the corresponding guide rail bracket, and the other end of each of the first guide rail and the second guide rail penetrates through the flanging.

Preferably, the connecting rods are arranged in a manner that the first connecting rod is directly or indirectly rotationally connected with the panel through a first pin shaft, the second connecting rod is directly or indirectly rotationally connected with the panel through a second pin shaft, the first pin shaft forms a rotating shaft of the first connecting rod, and the second pin shaft forms a rotating shaft of the second connecting rod; the first connecting rod and the second connecting rod are respectively provided with a first end and a second end, the first end of the first connecting rod is matched with the driving mechanism, the second end of the first connecting rod is connected with the first baffle, the first end of the second connecting rod is matched with the driving mechanism, the second end of the second connecting rod is connected with the second baffle, the first pin shaft is located between the first end and the second end of the first connecting rod, and the second pin shaft is located between the first end and the second end of the second connecting rod.

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 the range hood in a fully opened state according to the 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 the movement mechanism, baffle assembly and guide rail bracket of the range hood of FIG. 2;

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

FIG. 6 is a schematic view of a first baffle plate and a first mounting flange of the range hood according to the embodiment of the present invention;

FIG. 7 is a schematic diagram of a range hood according to an embodiment of the present invention in a right-open state;

FIG. 8 is a schematic view of hidden parts of the range hood of FIG. 7;

fig. 9 is a partial schematic view of a movement mechanism of the range hood of fig. 7;

fig. 10 is a partially exploded view of the moving mechanism of the range hood of fig. 7;

fig. 11 is a schematic view of the range hood according to the embodiment of the present invention in a left-open state;

fig. 12 is a schematic view of hidden parts of the extractor hood of fig. 11;

fig. 13 is a partial schematic view of a movement mechanism of the range hood of fig. 11;

fig. 14 is a partially exploded view of the moving mechanism of the range hood of fig. 11.

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 to 3, 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 6, 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 respectively and independently perform lifting movement 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 512 so as to extend in the same direction, or the output end of the motor 511 may be connected to the output shaft 512 through a transmission mechanism so as to extend in the left-right direction, thereby achieving the switching of 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 first connecting rod 521, a second connecting rod 522 and a swinging rod 523, the swinging rod 523 can be in a centrosymmetric structure or a non-centrosymmetric structure, when the swinging rod 523 is in the centrosymmetric structure, the swinging rod 523 is eccentrically connected with the output shaft 512, and when the swinging rod 523 is in the non-centrosymmetric structure, the swinging rod 523 can 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.

A shift lever 524 is provided on the swing lever 523, and the shift lever 524 also extends in the front-rear direction. The swing lever 523 has two swing arms 5231 arranged in front and rear, and the shift lever 524 is connected between the two swing arms 5231.

The first link 521 and the second link 522 are both disposed at a front side of the swing link 523. The first link 521 and the second link 522 have the same structure, the first link 521 and the second link 522 respectively have opposite first and second ends, the first end of the first link 521 and the first end of the second link 522 are close to each other, and the second end of the first link 521 and the second end of the second link 522 are far away from each other. The first link 521 corresponds to the first barrier 41, and is formed at a first end with a first groove 5211, the first groove 5211 being formed by an end of the first link 521 being recessed inward of the first link 521, thereby making the first end of the first link 521 substantially U-shaped. Likewise, the second link 522 corresponds to the second shutter 42, and is formed at the first end with a second groove 5221, the second groove 5221 being formed by recessing the end of the second link 522 inwardly of the second link 522, thereby making the first end of the second link 522 substantially U-shaped. The lever 524 can be selectively engaged with the first groove 5211 or the second groove 5221.

The moving mechanism further includes a mounting bracket 53, the mounting bracket 53 is disposed at a position near the bottom end of the rear side of the panel 2, the motor 511 of the driving mechanism 51 is fixedly connected to the rear side of the mounting bracket 53, the first link 521 is rotatably connected to the mounting bracket 53 through a first pin 5212 at a position between the first end and the second end of the first link 521, the second link 522 is rotatably connected to the mounting bracket 53 through a second pin 5222 at a position between the first end and the second end of the second link 522, and both the first link 521 and the second link 522 are located at the rear side of the mounting bracket 53. The first pin 5212 and the second pin 5222 each extend in the front-rear direction and serve as rotation shafts of the first link 521 and the second link 522, respectively.

The first pin 5212 and the second pin 5222 may be directly connected to the panel 2, and the motor 511 of the driving mechanism 51 may be directly disposed on the rear side of the panel 2.

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.

The transmission mechanism further includes a first support bar 525, a second support bar 526, a first guide bar 527, and a second guide bar 528. The first support rod 525 is rotatably connected to the second end of the first link 521, the rotation shaft of the first support rod 525 extends in the front-rear direction, the second support rod 526 is rotatably connected to the second end of the second link 522, and the rotation shaft of the second support rod 526 extends in the front-rear direction. The first support rod 525 is provided with a first connection sleeve 5251, and the second support rod 526 is provided with a second connection sleeve 5261. In the present embodiment, the first support rod 525 and the second support rod 526 each extend in the left-right direction, the first connection sleeves 5251 have two and are respectively disposed at the left and right ends of the first support rod 525, and the second connection sleeves 5261 have two and are respectively disposed at the left and right ends of the second support rod 526.

The first baffle plate 41 has a first mounting flange 43 formed at the bottom thereof extending downward, and first mounting lugs 431 protruding rearward at both left and right ends of the first mounting flange 43. The second baffle plate 42 has a second mounting flange 44 formed at the bottom thereof extending downward, and the second mounting flange 44 has second mounting lugs 441 protruding rearward at the left and right ends thereof. The first guide rod 527 is located at the rear side of the first mounting flange 43, extends in the left-right direction, and has both ends fixedly coupled through the first mounting lugs 431 at the corresponding positions, respectively. The second guide bar 528 is located at the rear side of the second mounting flange 44, extends in the left-right direction, and has both ends fixedly coupled through the second mounting lugs 441 at the corresponding positions, respectively. The first coupling sleeve 5251 is sleeved on the outer periphery of the first guide rod 527 and can move along the length extension direction of the first guide rod 527, and the second coupling sleeve 5261 is sleeved on the outer periphery of the second guide rod 528 and can move along the length extension direction of the second guide rod 528.

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 first guide rails 529 have two, and the two first guide rails 529 correspond to left and right sides of the first barrier 41, respectively. The second guide rails 530 also have two, and the two second guide rails 530 correspond to the left and right sides of the second barrier 42, respectively. 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. A rail bracket 22 may be provided at a lower portion of the rear side of the panel 2 so that lower ends of the first rail 529 and the second rail 530 are respectively coupled and fixed to the rail bracket 22. The upper portion of the rear side of the panel 2 may be provided with a flange 23 protruding backward, the upper ends of the first guide rail 529 and the second guide rail 530 upwardly penetrate through the flange 23, and the flange 23 plays a role in positioning the first guide rail 529 and the second guide rail 530, so that the first guide rail 529 and the second guide rail 530 do not tilt backward.

Referring to fig. 6, the first baffle plate 41 is shown, the first folding edge 411 is respectively arranged at the left and right ends of the rear side of the first baffle plate 41, the first folding edge 411 protrudes backwards from the left end or the right end of the first baffle plate 41 to form a ring shape, and the first guide rail 529 can pass through the inside of the first folding edge 411 of the first baffle plate 41. In order to make the sliding of the first flap 41 more stable, two first folding edges 411 may be provided at each side (left or right side), and the two first folding edges 411 are spaced up and down. Similarly, the second flaps 421 are respectively disposed at the left and right ends of the rear side of the second flap 42, the second flaps 421 protrude backward from the left or right end of the second flap 42 to form a ring shape, the second guide rail 530 can pass through the inside of the second flaps 421 of the second flap 42, and similarly, the second flaps 421 of each side are two and are spaced up and down. The first flap 411 of the first shutter 41 is slidably coupled to the first guide rail 529, and the second flap 421 of the second shutter 42 is slidably coupled to the second guide rail 530. Accordingly, the first barrier 41 is movable up and down along the first guide rail 529, and the second barrier 42 is movable up and down along the second guide rail 530. The cooperation of the rail bracket 22 and the corresponding flange 411 can play a role of lower limit for the movement of the first baffle plate 41 and the second baffle plate 42.

The rotational axes of the links, the support rods, and the lever 524 are parallel to the output shaft 512 of the driving 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.

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.

The invention can realize three air inlet states of the air inlet 21:

referring to fig. 3 to 6, under the condition that both sides of the dual-range are cooked, the smoke barrier 6 is opened, and at this time, both sides of the amount of oil smoke are large, the first baffle 41 and the second baffle 42 are in the initial state, and 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 the completely opened state, the driving mechanism 51 is not started, and the shift lever 524 is located between the first connecting rod 521 and the second connecting rod 522.

Referring to fig. 7 to 10, in the case of cooking on the right side of the dual-range cooker, when the smoke barrier 6 is opened and the amount of smoke is large on the right side, the driving mechanism 51 is activated to rotate the swinging rod 523 to the left side until the shift rod 524 is inserted into the first recess 5211 of the first link 521, and then the swinging rod 523 continues to rotate to the left side, so that the shift rod 524 abuts against the lower edge of the first recess 5211 to press the first end of the first link 521 downward, because the first link 521 is rotatably connected to the mounting bracket 53 (the panel 2), the first link 521 rotates relative to the panel 2, and the second end thereof rotates upward and rightward, because the first connecting sleeve 5251 on the first support 525 is constrained by the first guide rod 527, the first support 525 cannot rotate relative to the panel 2, and the first link 521 and the first support 525 rotate relative to each other and the first support 525 moves rightward along the first guide rod 527, thereby promote first baffle 41 rebound, until corresponding with first air inlet region 211 to close first air inlet region 211, make left flow reduce, make range hood be in the state of opening to the right, thereby strengthen the air inlet speed of right side culinary art side oil smoke. Thereafter, if it is required to return to the initial state, it is only required to rotate the motor 511 reversely, so that the lever 524 abuts against the upper edge of the first recess 5211 to push the first link 521 to rotate reversely, thereby pulling the first barrier 41 downward, when the first barrier 41 returns to the initial position, the first link 521 is inclined at such an angle that the lever 524 can be disengaged from the first recess 5211 when the motor 511 continues to rotate, thereby not driving the first barrier 41 to continue to operate, and thereafter, the motor 511 can continue to rotate, thereby returning the lever 524 to the intermediate position between the first link 521 and the second link 522.

Referring to fig. 11 to 14, in the case of cooking on the left side of the dual range, when the smoke barrier 6 is opened and the amount of oil smoke is large on the right side, the driving mechanism 51 is actuated to rotate the swing link 523 to the right side until the shift lever 524 is inserted into the second groove 5221 of the second link 522, and then the swing link 523 continues to rotate to the right side, so that the shift lever 524 abuts against the lower edge of the second groove 5221 to press the first end of the second link 522 downward, since the second link 522 is rotatably connected to the mounting bracket 53 (the panel 2), the second link 522 rotates relative to the panel 2 and the second end thereof rotates upward to the left, since the second connecting sleeve 5261 on the second support bar 526 is constrained by the second guide bar 528, the second support bar 526 cannot rotate relative to the panel 2, and the second link 522 and the second support bar 526 rotate relative to each other and the second support bar 526 simultaneously move leftward along the second guide bar 527, thereby promote second baffle 42 rebound, until corresponding with second air inlet region 212, thereby close second air inlet region 212 for the flow on right side reduces, makes range hood be in left open state, thereby strengthens the air inlet speed of left side culinary art side oil smoke. Thereafter, if it is required to return to the initial state, it is only necessary to rotate the motor 511 reversely, so that the lever 524 abuts against the upper edge of the second groove 5221 to push the second link 522 to rotate reversely, thereby pulling the second barrier 42 downward, and when the second barrier 42 returns to the initial state, the second link 522 is inclined at such a degree that the lever 524 can be disengaged from the second groove 5221 when the motor 511 continues to rotate, thereby not driving the second barrier 42 to continue to operate, and thereafter, the motor 511 can continue to rotate, thereby returning the lever 524 to the intermediate position between the first link 521 and the second link 522.

The invention can realize reasonable distribution of air intake in the left and right areas of the air inlet, and when a user cooks on one side and the range hood starts a small gear, the air intake of the non-cooking side is reduced, so that the air intake speed of oil smoke on the cooking side is increased, low noise and high-efficiency smoking are realized, the energy consumption is reduced, and simultaneously, the silence and the prevention of smoke leakage are realized. In addition, the left and right air inlet flow is adjusted through one driving mechanism, so that the cost is reduced, the problem occurrence probability of the driving mechanism is reduced, and the product maintenance rate is reduced.

Claims (14)

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 connecting rod (521) and a second connecting rod (522), the first connecting rod (521) is connected with the first baffle plate (41), and the second connecting rod (522) is connected with the second baffle plate (42);

the driving mechanism (51) can be selectively matched with the first connecting rod (521) or the second connecting rod (522) so as to drive the first connecting rod (521) or the second connecting rod (522) 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), or 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).

2. The intake assembly of claim 1, wherein: the first connecting rod (521) is rotatably connected with the first baffle plate (41) so as to enable the first baffle plate (41) to move linearly, and the second connecting rod (522) is rotatably connected with the second baffle plate (42) so as to enable the second baffle plate (42) to move linearly.

3. The intake assembly of claim 2, wherein: the transmission mechanism further comprises a swing rod (523), the driving mechanism (51) further comprises an output shaft (512) capable of rotating around the axis of the driving mechanism, the output shaft (512) is connected with the swing rod (523) and can drive the swing rod (523) to swing in a reciprocating mode, the swing rod (523) can be selectively matched with a first connecting rod (521) or a second connecting rod (522) so as to push the first connecting rod (521) and the second connecting rod (522) to rotate, and rotating shafts of the first connecting rod (521) and the second connecting rod (522) are parallel to the output shaft (512) respectively.

4. The intake assembly of claim 3, wherein: the end part of the first link (521) close to the swing rod (523) is provided with a first groove (5211), the first groove (5211) is formed by the end part of the first link (521) sinking towards the inner part of the first link (521), the end part of the second link (522) close to the swing rod (523) is provided with a second groove (5221), the second groove (5221) is formed by the end part of the second link (522) sinking towards the inner part of the second link (522), and the swing rod (523) can be directly or indirectly jointed with the first groove (5211) and the second groove (5221).

5. The intake assembly of claim 4, wherein: the swing rod (523) is provided with a shift lever (524), and the shift lever (524) can be selectively inserted into the first groove (5211) or the second groove (5221) along with the swing of the swing rod (523) to be jointed, so that the shift lever (524) pushes the first connecting rod (521) or the second connecting rod (522) to rotate.

6. The intake assembly of claim 3, wherein: the driving mechanism (51) further comprises a motor (511) for driving the output shaft (512) to rotate, and 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.

7. The intake assembly of claim 2, wherein: the transmission mechanism further comprises a first support rod (525), a second support rod (526), a first guide rod (527) and a second guide rod (528); the first support rod (525) is rotationally connected with the first connecting rod (521), and the second support rod (526) is rotationally connected with the second connecting rod (522); be provided with first connecting sleeve (5251) on first bracing piece (525), be provided with second connecting sleeve (5261) on second bracing piece (526), first guide bar (527) sets up on first baffle (41), second guide bar (528) set up on second baffle (42), first connecting sleeve (5251) cover is established in first guide bar (527) periphery and can be removed along the length direction of first guide bar (527), second connecting sleeve (5261) cover is established in second guide bar (528) periphery and can be removed along the length direction of second guide bar (528), the axis of rotation of each connecting rod and bracing piece is parallel to each other, the length direction of each guide bar is perpendicular with the axis of rotation of corresponding connecting rod, the length direction of each guide bar is still perpendicular with the removal route of corresponding baffle.

8. The intake assembly of claim 2, wherein: the motion mechanism further comprises a first guide rail (529) and a second guide rail (530), the first guide rail (529) extends along a moving path of the first baffle (41), the second guide rail (530) extends along a moving path of the second baffle (42), the first baffle (41) is slidably connected with the first guide rail (529), and the second baffle (42) is slidably connected with the second guide rail (530).

9. The intake assembly of claim 8, wherein: the first baffle plate (41) is provided with a first folding edge (411), the first folding edge (411) is annular, and the first guide rail (529) penetrates through the first folding edge (411) to form sliding connection; the second baffle (42) is provided with a second folding edge (421), the second folding edge (421) is annular, and the second guide rail (530) penetrates through the second folding edge (421) to form sliding connection.

10. The intake assembly of claim 8, wherein: the baffle plate assembly is characterized in that a guide rail bracket (22) and a flanging (23) protruding towards one side of the baffle plate assembly are arranged on the panel (2), one end of each of the first guide rail (529) and the second guide rail (530) is fixedly connected with the corresponding guide rail bracket (22), and the other end of each of the first guide rail (529) and the second guide rail (530) penetrates through the flanging (23).

11. The air intake assembly of any one of claims 1 to 10, wherein: the first connecting rod (521) is directly or indirectly rotationally connected with the panel (2) through a first pin shaft (5212), the second connecting rod (522) is directly or indirectly rotationally connected with the panel (2) through a second pin shaft (5222), the first pin shaft (5212) forms a rotating shaft of the first connecting rod (521), and the second pin shaft (5222) forms a rotating shaft of the second connecting rod (522); the first connecting rod (521) and the second connecting rod (522) are respectively provided with a first end and a second end, the first end of the first connecting rod (521) is matched with the driving mechanism (51) while the second end is connected with the first baffle plate (41), the first end of the second connecting rod (522) is matched with the driving mechanism (51) while the second end is connected with the second baffle plate (42), the first pin shaft (5212) is positioned between the first end and the second end of the first connecting rod (521), and the second pin shaft (5222) is positioned between the first end and the second end of the second connecting rod (522).

12. The air intake assembly of any one of claims 1 to 10, 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).

13. A range hood applying the air intake assembly as claimed in any one of claims 1 to 12, comprising a housing (1), wherein the panel (2) is disposed at the front side of the housing (1), and 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.

14. The range hood of claim 13, 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).

Images