CN114909683A - Smoke exhaust ventilator - Google Patents

Abstract

The invention provides a range hood, comprising: a smoke cage; the smoke inlet is arranged on the smoke hood; at least two smoke guide portions set up in the petticoat pipe, and arbitrary smoke guide portion includes relative first end and second end, and the first end of two at least smoke guide portions is close to each other, and smoke guide portion still includes the smoke guide surface that deviates from into the mouth, and smoke guide surface is crooked to be extended between first end and second end to can be used to hold towards first end and/or second and lead the cigarette. In the range hood provided by the invention, the smoke guide surfaces are bent and extended between the first end and the second end, and the smoke guide surfaces of the two smoke guide parts are matched for use, so that the smoke guide surfaces of the cambered surfaces are more consistent with the flow path of the oil smoke in a natural state, the oil smoke flow obstruction can be further reduced to a great extent, the interference on the oil smoke is small, the flow path of the oil smoke is short, the conditions of liquid condensation in the oil smoke and escape of the oil smoke are not easy to occur, and the better smoke guide effect is achieved.

Description

Smoke exhaust ventilator

Technical Field

The invention relates to the technical field of household appliances, in particular to a range hood.

Background

At present, smoke guide plates of a range hood are flat plates, two flat plate smoke guide plates are arranged in a smoke hood in parallel, and a preset distance is reserved between the two flat plate smoke guide plates to form middle air inlet. However, in practical application, the smoke sources of the two cooking benches are respectively arranged at the left side and the right side of the range hood and close to the using direction of a user, and the flat-plate type smoke guide plate is slightly out of the center of the cooker, so that the flat-plate type smoke guide plate is approximately vertically blocked in the rising direction of the oil smoke and is not beneficial to smoke discharge.

The related art discloses a liftable or rotatable flat-plate smoke guide plate, but the inclination angle of the smoke guide plate is small in the working state, the smoke guide plate is approximate to a flat smoke guide plate, and the effect is basically the same as that of the flat-plate smoke guide plate. Therefore, the existing range hood has the defect that the smoke guide direction of the smoke guide plate is the same as the natural flow direction of the hearth smoke source, so that the problems that the smoke guide plate has large interference on the flow of the oil smoke, the oil smoke stays for a long time, the path is long, the oil smoke easily leaks and the like are caused.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art.

Therefore, the invention provides a range hood.

The invention provides a range hood, comprising: a smoke cage; the smoke inlet is arranged on the smoke hood; at least two smoke guiding portions set up in the petticoat pipe, and arbitrary smoke guiding portion includes relative first end and second end, and the first end of two at least smoke guiding portions is close to each other, and smoke guiding portion still includes the smoke guiding surface that deviates from into the mouth, and smoke guiding surface bends to extend between first end and second end to can be used to hold towards first end and/or second and lead the cigarette.

The range hood provided by the invention comprises a hood, a smoke inlet and at least two smoke guide parts which are matched with each other. Wherein, the smoke inlet is arranged on the smoke hood, the two smoke guiding parts are arranged on the smoke hood in parallel and used in pairs, and the smoke hood can be provided with one or more pairs of smoke guiding parts. Any smoke guiding part comprises a first end and a second end which are oppositely arranged, the first ends of the two smoke guiding parts which are used in a matched mode are close to each other, and the second ends of the two smoke guiding parts which are used in a matched mode are far away from each other.

In addition, any one leads cigarette portion and still includes the smoke guide surface that deviates from the mouth that advances cigarette, leads cigarette portion and extends between the first end of smoke guide portion to the second end of smoke guide portion to smoke guide portion is the crooked extension between first end and second end, in order to constitute the high low smoke guide surface in middle of the both sides. In the working process of the range hood, the smoke guide surface guides the oil smoke to the first end and/or the second end of the smoke guide part, so that the flowing direction of the oil smoke is the same as the smoke guide direction of the smoke guide part.

In addition, for any smoke guide part, due to the smoke guide surface with a high middle part and two low sides, the interference of the smoke guide surface to the oil smoke is small. And the smoke guide surfaces of the two smoke guide parts are matched for use, so that various postures can be formed, different working conditions are adapted, the flow path of the oil smoke is shorter, in the oil smoke flowing process, the interference of the smoke guide parts to the oil smoke is smaller, the conditions of liquid condensation and oil smoke escape in the oil smoke are not easy to occur, the problem of large interference in oil smoke capture caused by the side of the center of the cooking bench and the center of the range hood in the related technology is particularly solved, the oil smoke retention time is shortened, the oil smoke is smoother, and effective smoke guide is realized.

Particularly, at present, most of user kitchens are provided with double cooking ranges, so that one range hood needs to solve the oil smoke problem of the two cooking ranges. A certain distance needs to be left between the two cooking ranges, so that the two cooking ranges are positioned on two sides of the center of the smoke cover. Therefore, the range hood provided by the invention is matched with the two smoke guide parts used in pair, and particularly ensures that the smoke guide surface of the smoke guide part is set to be a curved surface, so that the oil smoke on two sides of the smoke hood is discharged out of the smoke hood under the flow guide effect of the two smoke guide parts. And the direction of the smoke guide surface for guiding the oil smoke is the same as the breeding flowing direction of the oil smoke, so that the center of the effective cooking bench is positioned at the side of the center of the range hood, the problem of large interference of oil smoke capture is caused, the retention time of the oil smoke is shortened, the oil smoke is smoother, and the effective smoke guide is realized.

The range hood according to the above technical scheme of the present invention may further have the following additional technical features:

in the above technical scheme, the smoke guide surface is a cambered surface and protrudes towards one side deviating from the smoke inlet.

In this technical scheme, lead the cigarette face and set up to the cambered surface to the orientation deviates from into cigarette mouth one side protrusion. Wherein, two smoke guide parts used in pairs are arranged in the smoke hood in parallel, so that the smoke guide surfaces of the two smoke guide parts are also arranged in the smoke hood in parallel, and the smoke guide surfaces of the two smoke guide parts used in pairs correspond to the positions of the two pot bodies on the cooking bench. Like this, in range hood use, the oil smoke that produces from two top of a kitchen range at first respectively with two lead the cigarette face and contact to with the middle part of leading the cigarette face, and then the first end and/or the second end flow towards leading cigarette portion under the effect of cambered surface, in order to guarantee that the oil smoke can discharge. And in the process of oil smoke flowing, the original flowing path of the oil smoke cannot be changed, and then the obstruction to the oil smoke is reduced to the greatest extent.

In any of the above technical solutions, from the first end to the second end, the distance between the smoke guide surface and the plane where the smoke inlet is located increases and then decreases; or the distance between the smoke guide surface and the plane where the smoke inlet is positioned gradually increases from the first end to the second end; or the distance between the smoke guide surface and the plane of the smoke inlet is gradually reduced from the first end to the second end.

In the technical scheme, in the using state of the range hood, the two smoke guide parts used in a matched mode are in the working posture. At this time, the postures of the two smoke guide portions used in pair include, but are not limited to, the following cases:

in the first case, the distance between the smoke guide surface and the plane where the smoke inlet is located increases and then decreases from the first end to the second end. That is to say, two smoke guide surfaces used in pairs form a W shape, so that the oil smoke generated by the cooking bench can flow towards the first end and the second end of the smoke guide part respectively after contacting the smoke guide surfaces, and the oil smoke can flow towards the two sides and the middle part of the smoke cover simultaneously under the action of the smoke guide surfaces.

In the second case, the distance between the smoke guide surface and the plane of the smoke inlet is gradually increased from the first end to the second end. That is to say, two smoke guide surfaces that mate and use constitute the type of falling U, and the produced oil smoke of top of a kitchen range can flow towards the first end of smoke guide portion respectively after contacting smoke guide surface like this for the oil smoke assembles the middle part of petticoat pipe under smoke guide surface effect.

In the second case, the distance between the smoke guide surface and the plane of the smoke inlet is gradually reduced from the first end to the second end. That is to say, two smoke guide surfaces used in pairs form a U shape, so that the oil smoke generated by the cooking bench can respectively flow towards the second ends of the two sides of the smoke guide part after contacting the smoke guide surfaces, so that the oil smoke flows towards the two sides of the smoke hood under the action of the smoke guide surfaces.

It is worth noting that no matter which of the above situations, the oil smoke flows along the cambered surface in the flowing process, and compared with the plane design in the related art, the cambered surface more conforms to the flowing path of the oil smoke in the natural state, so that the oil smoke flowing obstruction can be greatly reduced, and a better smoke guiding effect can be achieved.

In any of the above technical solutions, the smoke guiding portion is a smoke guiding plate.

In this technical scheme, lead cigarette portion for lead the cigarette board. The smoke guide plate is of a plane plate-shaped structure, so that the structure of the smoke guide part can be effectively simplified while the flow guide effect on oil smoke is ensured, and the smoke guide part is convenient to process and manufacture. More importantly, the smoke guide part is arranged to be the smoke guide plate, the whole thickness of the smoke guide part can be reduced, the weight of the smoke guide part can be greatly reduced while the smoke guide effect is met, the risk that the smoke guide part of the range hood drops in the using process can be reduced on the one hand, and the force exertion requirement of other driving parts or manual driving of a user can be reduced when the movable smoke guide part is adopted on the other hand.

In any one of the above technical schemes, the second end of the smoke guiding part is connected with the smoke cover, and the first end of the smoke guiding part is a free end.

In this technical scheme, the second end of leading cigarette portion is connected with the petticoat pipe, and the first end of leading cigarette portion uses as the free end, makes like this to lead cigarette portion for mobilizable formula design. In the use process of the range hood, the position of the smoke guide part can be adjusted according to the actual use environment, the position of the flow guide surface is ensured to be matched with the original flow path of the oil smoke as much as possible, the change of the oil smoke path is further reduced, the obstruction of the oil smoke in the flow process is reduced, and the adaptability of the range hood is further improved.

In any one of the above technical solutions, a first interval is formed between the second end of the smoke guide part and the smoke cover, and the first interval is communicated with the smoke inlet; a second interval is formed between the first ends of the two smoke guide parts and communicated with the smoke inlet.

In this technical scheme, form first interval between the second end of smoke guide portion and the petticoat pipe, be formed with the second interval between the first end of two smoke guide portions that pair was used to above-mentioned first interval and second interval all are linked together with advancing the mouth of cigarette. Therefore, when the oil smoke flows to the first end of the oil smoke guiding part under the action of the oil smoke guiding surface, the oil smoke can be discharged from the second interval; when the oil smoke flows to the second end of the smoke guide part under the action of the smoke guide surface, the oil smoke can be discharged from the first interval, so that multi-angle smoke discharge and selectable smoke discharge positions are realized.

In any one of the above technical solutions, the range hood further includes: the fan is arranged on the smoke hood, and the fan and the two smoke guide parts are positioned on two sides of the smoke inlet; the oil filter screen is arranged on the smoke hood, and the smoke filter screen is positioned at the smoke inlet or between the smoke inlet and the smoke guide part.

In the technical scheme, the range hood further comprises a fan and an oil filter screen. Wherein, the fan setting is in the petticoat pipe, and the fan is located the top of advancing the mouth, and two at least smoke guide portion are located the below of advancing the mouth. The fan operation can form negative pressure in smoke exhaust passage like this to the oil smoke that the suction entered into leads the flue chamber, and make the oil smoke enter into inside the smoke exhaust passage along the smoke guiding portion of mating use under the effect of suction.

In addition, an oil filter screen is arranged in the smoke hood. The oil filter screen can be arranged at the smoke inlet and also can be arranged between the smoke inlet and the at least two smoke guide parts. The oil smoke passes through the oil filter screen under the drive of fan like this to make the tiny oil bead that mixes in the oil smoke caught by the oil filter screen.

In any one of the above technical schemes, the middle part of the oil filter screen is arranged towards one side of the fan in a protruding mode.

In this technical scheme, the middle part of oil cleaner screen is towards fan one side protrusion setting. In the working process of the range hood, oil smoke enters the oil filter screen under the driving of the fan and passes through the oil filter screen to filter small oil droplets mixed in the oil smoke. Because the middle part of the oil filter screen protrudes upwards, the oil filter screen can be blocked due to oil smoke to a great extent, and oil guiding of condensed oil on the oil filter screen is facilitated.

In any of the above technical schemes, the inner wall of the oil filter screen is reduced from the smoke guide part to the fan.

In the technical scheme, the inner wall of the oil filter screen is reduced from the smoke guide part to the fan, so that the oil filter screen has certain gathering and collecting effects on oil smoke, and the oil filter screen is matched with the smoke guide cavity to ensure high-efficiency smoke absorption of the range hood.

In any one of the above technical solutions, the oil filter screen includes: the separation belt is arranged between the fan and the smoke guide part; and the two filter screens are connected to two sides of the separation belt and are obliquely arranged relative to the plane where the smoke inlet is positioned.

In the technical scheme, the oil filter screen comprises a division belt and filter screens arranged on two sides of the division belt. The middle convex part of the oil filter screen is provided with a middle separation belt, and the two filter screens incline towards the periphery, so that the condensed oil on the middle separation belt is guided while the second separation between the two smoke guide parts is prevented from dripping.

In any one of the above technical solutions, the first end of the smoke guiding portion extends to between the two filter screens.

In this technical scheme, the smoke guide portion extends from the second end to the first end of smoke guide portion extends to between two filter screens. Therefore, the smoke guide part can directly guide the oil smoke to the position of the oil filter screen. Therefore, when the range hood is used, the oil smoke can be directly sucked away by the upper negative pressure area when the oil smoke is separated from the first end of the smoke guide part.

In any one of the above technical solutions, the smoke cover includes: the smoke exhaust channel is provided with a smoke inlet and a smoke outlet which are communicated; the smoke guide cavity is communicated with the smoke exhaust channel through the smoke inlet, and the two smoke guide parts are arranged in the smoke guide cavity.

In this technical scheme, the petticoat pipe is including leading cigarette chamber and exhaust fume passageway. The smoke exhaust channel is positioned above the smoke guide cavity and comprises a smoke inlet and a smoke exhaust port which are communicated, the smoke guide cavity is communicated with the smoke exhaust channel through the smoke inlet, and at least two smoke guide parts are arranged in the smoke guide cavity and can guide the oil smoke towards the interior of the smoke exhaust channel.

Specifically, the fan sets up in smoke exhaust passage, leads cigarette portion and sets up in leading the cigarette intracavity.

Specifically, in the vertical direction, the first end of the smoke guide part is positioned below the smoke inlet of the smoke exhaust channel; in the horizontal direction, the second end of the smoke guide part is positioned at the side of the smoke inlet of the smoke exhaust channel. Therefore, in the use process of the range hood, the oil smoke is guided towards the middle of the smoke guide cavity by the two smoke guide parts which are used in a matched mode, the guided oil smoke is gathered at the second interval formed by the two smoke guide parts, flows to the smoke inlet through the second interval and is finally discharged through the smoke inlet. Correspondingly, the two sides of the smoke guide cavity of the two smoke guide parts used in pair guide the oil smoke towards the two sides of the smoke guide cavity, the guided oil smoke is gathered at a first interval formed by the smoke guide part and the smoke cover, flows to the smoke inlet through the first interval and is finally discharged through the smoke inlet.

In any of the above technical solutions, the smoke guide cavity has an opening, the opening is communicated with the smoke inlet, and the two smoke guide parts are located between the opening and the smoke inlet.

In this technical scheme, lead the cigarette chamber and have the opening, the opening is located the below of leading cigarette portion to be linked together with advancing the cigarette mouth. In particular, the opening area of the smoke guiding chamber is larger than the area of the smoke inlet of the smoke exhaust channel, so that the smoke guiding hood can be covered above the cooking bench to primarily collect the oil smoke generated by the cooking bench.

In any of the above technical solutions, the inner wall of the smoke guide cavity is tapered from the opening to the smoke inlet.

In the technical scheme, the inner wall of the smoke guide cavity is reduced from the direction of the smoke inlet of the opening channel, so that the smoke guide cavity has certain gathering and collecting effects on oil smoke, the smoke guide part is matched with the smoke guide cavity, and the efficient smoking of the range hood is ensured.

In any one of the above technical solutions, the range hood further includes: at least two connecting pieces are respectively connected with the smoke hood and at least two smoke guide parts, and the smoke guide parts are rotatably connected with the smoke hood through the connecting pieces.

In the technical scheme, the range hood further comprises at least two connecting pieces, and the number of the connecting pieces is matched with that of the smoke guide parts. Wherein, the connecting piece is installed at the petticoat pipe, leads on cigarette portion is connected to the connecting piece, and then guarantees leading being connected of cigarette portion and petticoat pipe through the connecting piece. In addition, the smoke guide part is rotatably connected with the smoke cover through a connecting piece, so that the smoke guide part is arranged at a position relative to the smoke inlet.

Specifically, at the in-process of adjusting smoke guide portion, can be user manual regulation, also can set up the driving piece at the petticoat pipe, and then lead the rotation of smoke guide portion through the driving piece drive.

In any of the above technical solutions, the smoke guiding portion has a third end and a fourth end opposite to each other, and a distance from the third end to a plane where the smoke inlet is located is smaller than a distance from the fourth end to the plane where the smoke inlet is located.

In this technical scheme, arbitrary smoke guiding portion has relative third end and fourth end to in range hood use, the distance of third end to the plane that advances the mouth of cigarette place is less than the distance between the plane that advances the mouth of cigarette place to the fourth end, makes smoke guiding portion wholly demonstrate the state of slope, so that smoke guiding portion sets up towards user one side, has promoted range hood's whole aesthetic feeling on the one hand, and range hood's smoking efficiency has been guaranteed on the other hand. And the oil guide hole and the fourth end are positioned on the same side of the smoke hood, so that the oil blocking part and the smoke guide part are consistent in inclined direction, and the structural coordination of the oil blocking part and the smoke guide part is ensured.

Specifically, the first end of the smoke guide part is an inner end, the second end of the smoke guide part is a side end, and the first end and the second end are distributed along the left and right direction of the range hood; the third end of the smoke guide part is a front end, the fourth end is a rear end, and the third end and the fourth end are distributed along the front-rear direction of the range hood.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a front view (in use) of a range hood according to an embodiment of the present invention;

fig. 2 is a side view (in use) of a range hood in accordance with one embodiment of the present invention;

fig. 3 is a bottom view of a range hood according to an embodiment of the present invention;

FIG. 4 is an isometric view of a range hood in accordance with an embodiment of the present invention;

fig. 5 is a front view (in use) of a range hood according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a smoke guiding portion in the range hood according to an embodiment of the present invention;

fig. 7 is one of the schematic positional relationships between the smoke guiding part and the oil filter screen in the range hood according to the embodiment of the present invention;

fig. 8 is a second schematic view of the positional relationship between the smoke guiding portion and the oil filter screen in the range hood according to the embodiment of the invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:

102, 104, 106, 108, 110, second, 112, 114a, 114b, 116, 118, 120, 122, 124, 126, 128, smoke channel, 130, 132, 134, second, 136, end, 138, end, 140, cup, 142, 200 pan.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

A range hood provided according to some embodiments of the present invention will be described with reference to fig. 1 to 8. The dotted lines in fig. 2 and 5 indicate the lampblack flow path.

As shown in fig. 1 and 2, a first embodiment of the present invention provides a range hood, including: a smoke cage 102, a smoke inlet 104, and at least two smoke guide portions 106 that cooperate with one another. The smoke inlet 104 is arranged on the smoke hood 102, the two smoke guide parts 106 are arranged on the smoke hood 102 in parallel and used in pairs, and one pair or a plurality of pairs of smoke guide parts 106 can be arranged on the smoke hood 102. Any one of the smoke guide portions 106 includes a first end 108 and a second end 110 that are oppositely disposed, the first ends 108 of the two paired smoke guide portions 106 are close to each other, and the second ends 110 of the two paired smoke guide portions 106 are far away from each other.

In addition, as shown in fig. 3 and fig. 4, any one of the smoke guiding portions 106 further includes a smoke guiding surface 112 facing away from the smoke inlet 104, the smoke guiding surface 112 extends from the first end 108 of the smoke guiding portion 106 to the second end 110 of the smoke guiding portion 106, and the smoke guiding portion 106 is bent and extends between the first end 108 and the second end 110 to form the smoke guiding surface 112 with a high middle and two low sides, so as to guide the oil smoke to the first end 108 and/or the second end 110 of the smoke guiding portion 106 during the operation of the range hood, and ensure that the flow direction of the oil smoke is the same as the smoke guiding direction of the smoke guiding portion 106.

As shown in fig. 5 and 6, in any smoke guide portion 106, due to the smoke guide surface 112 with a high middle and two low sides, the smoke guide surface 112 can guide the flow toward the first end 108 and the second end 110 of the flow guide portion 106, and the interference to the oil smoke is small. The smoke guide surfaces 112 of the two smoke guide parts 106 are used in a matched mode, multiple postures can be formed, different working conditions are adapted, and the cooker body 200 is particularly suitable for the biased condition of the cooker body, so that the flow path of oil smoke coincides with the backflow path of the smoke guide surfaces 112, in the oil smoke flowing process, the interference of the smoke guide parts 106 on the oil smoke is small, the conditions of liquid condensation in the oil smoke and oil smoke escape are not easy to occur, the problem that the interference of oil smoke capture is large due to the side direction of the center of the cooking bench and the center of the range hood in the related technology is particularly solved, the oil smoke retention time is shortened, the oil smoke is smoother, and effective smoke guide is realized.

Specifically, as shown in fig. 1 and 2, at present, a user kitchen is mostly provided with two cooking ranges, which makes one range hood to solve the problem of oil smoke of the two cooking ranges. A distance is required between the two cooktops so that the pan bodies 200 on the two cooktops are located on both sides of the center of the hood 102. Therefore, the range hood provided by the invention is matched with the two smoke guide parts 106 used in pair, and particularly, the smoke guide surface 112 of the smoke guide part 106 is set to be a curved surface, so that oil smoke on two sides of the smoke hood 102 is exhausted out of the smoke hood 102 at the two smoke guide parts 106, the flow guide direction of the smoke guide surface 112 to the oil smoke is the same as the breeding flow direction of the oil smoke, the problem of large interference of oil smoke capture caused by the fact that the center of a cooking bench is positioned on the side of the center of the range hood is effectively solved, the oil smoke retention time is shortened, the oil smoke is smoother, and effective smoke guide is realized.

A second embodiment of the present invention provides a range hood, based on the first embodiment, as shown in fig. 5 and 6, further, the smoke guiding surface 112 is configured as a curved surface and protrudes toward a side away from the smoke inlet 104. Wherein, the two paired smoke guide parts 106 are arranged in parallel in the smoke hood 102, so that the smoke guide surfaces 112 of the two smoke guide parts 106 are also arranged in parallel in the smoke hood 102, and the smoke guide surfaces 112 of the two paired smoke guide parts 106 correspond to the positions of the two pan bodies 200 on the cooking bench.

Thus, as shown in fig. 5, during the use of the range hood, the oil smoke generated from the two cooking ranges first contacts with the two smoke guide surfaces 112, respectively, and contacts with the middle portion of the smoke guide surfaces 112, and then flows toward the first end 108 and/or the second end 110 of the smoke guide portion 106 under the action of the arc surface, so as to ensure that the oil smoke can be exhausted. And in the oil smoke flowing process, the original flowing path can not be changed, and the obstruction to the oil smoke is reduced to the maximum extent.

In this embodiment, further, in the use state of the range hood, the two smoke guide portions 106 used in pair are in the working posture. At this time, the postures of the two smoke guide portions 106 used in pair include, but are not limited to, the following cases:

in the first case, the distance between the smoke guide surface 112 and the plane of the smoke inlet 104 increases from the first end 108 to the second end 110 and then decreases. That is, the two smoke guide surfaces 112 are configured in a W shape, so that the smoke generated from the cooking bench can flow towards the first end 108 and the second end 110 of the smoke guide 106 after contacting the smoke guide surfaces 112, so that the smoke can flow towards the two sides and the middle of the smoke cover 102 simultaneously under the effect of the smoke guide surfaces 112.

In the second case, the distance between the smoke guide surface 112 and the plane of the smoke inlet 104 gradually increases from the first end 108 to the second end 110. That is, the two smoke guide surfaces 112 used in pairs form an inverted U shape, so that the oil smoke generated by the cooking bench will respectively flow towards the first ends 108 of the smoke guide portions 106 after contacting the smoke guide surfaces 112, so that the oil smoke is converged at the middle of the smoke hood 102 by the smoke guide surfaces 112.

In the third case, the distance between the smoke guide surface 112 and the plane of the smoke inlet 104 gradually decreases from the first end 108 to the second end 110. That is, the two smoke guide surfaces 112 used in pairs are U-shaped, so that the oil smoke generated from the cooking bench can flow toward the second ends 110 of the two sides of the smoke guide 106 after contacting the smoke guide surfaces 112, so that the oil smoke flows toward the two sides of the smoke cage 102 under the action of the smoke guide surfaces 112.

It is worth noting that no matter which of the above situations, the oil smoke flows along the arc surface in the flowing process, and compared with the plane design in the related art, the arc surface more conforms to the flowing path of the oil smoke in the natural state, so that the oil smoke flowing obstruction can be greatly reduced, and a better smoke guiding effect is achieved.

A third embodiment of the present invention provides a range hood, which is based on the first embodiment, and further, as shown in fig. 6, the smoke guiding portion 106 is a smoke guiding plate. The smoke guide plate is of a planar plate-shaped structure, so that the structure of the smoke guide part 106 can be effectively simplified while the flow guide effect on the oil smoke is ensured, and the smoke guide part 106 can be conveniently machined and manufactured. More importantly, the smoke guiding part 106 is arranged as the smoke guiding plate, so that the whole thickness of the smoke guiding part 106 can be reduced, the smoke guiding effect is met, meanwhile, the weight of the smoke guiding part 106 can be greatly reduced, the falling risk of the smoke guiding part 106 of the range hood in the using process can be reduced, and the manual driving force exertion requirement of other driving parts or a user can be reduced when the movable smoke guiding part 106 is adopted.

In this embodiment, further, as shown in fig. 1 and 2, the second end 110 of the smoke guide 106 is coupled to the smoke cage 102 and the first end 108 of the smoke guide 106 serves as a free end, such that the smoke guide 106 is of a movable design. In the using process of the range hood, the position of the smoke guide part 106 can be adjusted according to the actual using environment, so that the position of the smoke guide surface 112 is ensured to be matched with the original position of the oil smoke as much as possible, the change of an oil smoke path is reduced, the obstruction of the oil smoke in the flowing process is reduced, and the adaptability of the range hood is further improved.

In a specific embodiment, as shown in fig. 1 and fig. 2, the range hood includes a first smoke guide plate 114a and a second smoke guide plate 114b which are used in cooperation, first ends 108 of the first smoke guide plate 114a and the second smoke guide plate 114b are close to each other, and second ends 110 of the first smoke guide plate 114a and the second smoke guide plate 114b are far away from each other.

In a fourth embodiment of the present invention, on the basis of the first embodiment, as shown in fig. 1 and fig. 2, a first interval 116 is formed between the second end 110 of the smoke guiding portion 106 and the smoke hood 102, a second interval 118 is formed between the first ends 108 of the two smoke guiding portions 106 used in pair, and both the first interval 116 and the second interval 118 are communicated with the smoke inlet 104.

Thus, as shown in fig. 2, when the soot flows toward the first end 108 of the soot guiding portion 106 by the soot guiding surface 112, the soot is discharged from the second gap 118; as shown in fig. 2 and 5, when the soot flows toward the second end 110 of the soot guiding portion 106 by the soot guiding surface 112, the soot can be discharged from the first space 116, so as to achieve multi-angle soot discharge and selectable soot discharge positions.

A fifth embodiment of the present invention provides a range hood, which further includes a fan 120 and an oil filter screen 122, as shown in fig. 1 and fig. 2, on the basis of the first embodiment. Wherein, the fan 120 is arranged in the smoke hood 102, the fan 120 is positioned above the smoke inlet 104, and the at least two smoke guiding parts 106 are positioned below the smoke inlet 104. The fan 120 is thus operated to create a negative pressure within the smoke evacuation channel 128 to draw the cooking fumes into the smoke guide chamber 130 and to draw the cooking fumes into the smoke evacuation channel 128 along the smoke guide 106 for mating use.

Further, as shown in fig. 5 and 6, an oil filter screen 122 is also provided within the hood 102. The oil filter screen 122 may be disposed at the smoke inlet 104, or may be disposed between the smoke inlet 104 and at least two smoke guides 106. The oil smoke passes through the oil filter screen 122 under the driving of the fan 120, and the small oil drops mixed in the oil smoke are captured by the oil filter screen 122.

In this embodiment, further, as shown in fig. 7 and 8, the middle portion of the oil filter screen 122 is provided to protrude toward the side of the fan 120. During the operation of the range hood, the oil smoke enters the oil filter screen 122 under the driving of the fan 120, and passes through the oil filter screen 122 to filter the small oil droplets mixed in the oil smoke. Because the middle part of the oil filter screen 122 protrudes upwards, the oil filter screen 122 can be blocked due to oil smoke to a great extent, and oil guide of condensed oil on the oil filter screen 122 is facilitated.

In this embodiment, further, as shown in fig. 7 and 8, the inner wall of the oil filter screen 122 is reduced in the direction from the smoke guide 106 to the fan 120. From the direction from the smoke guiding part 106 to the fan 120, the inner wall of the oil filter screen 122 is reduced, so that the oil filter screen 122 has a certain gathering and collecting effect on the oil smoke, and the oil filter screen 122 is matched with the smoke guiding cavity 130, thereby ensuring the efficient smoking of the range hood.

Further in this embodiment, as shown in fig. 7 and 8, the oil filter screen 122 includes a dividing belt 124 and filter screens 126 provided on both sides of the dividing belt 124. The middle convex part of the oil filter screen 122 is provided with a middle dividing strip 124, and the two filter screens 126 are inclined towards the periphery, so that the condensed oil on the middle dividing strip 124 is guided while the oil dripping of the second interval 118 between the two smoke guiding parts 106 is avoided.

In this embodiment, further, as shown in fig. 7 and 8, the smoke guide 106 extends from the second end 110 to the first end 108, and the first end 108 of the smoke guide 106 extends between two screens 126. This allows the fume guiding portion 106 to direct the fume to the location of the oil screen 122. Therefore, when the range hood is used, the oil smoke is separated from the first end 108 of the smoke guide 106 and can be directly sucked away by the upper negative pressure region.

In a sixth embodiment of the present invention, a range hood is provided, and further, as shown in fig. 1 and fig. 2, on the basis of the first embodiment, the smoke hood 102 includes a smoke guiding chamber 130 and a smoke exhausting channel 128. The smoke exhaust channel 128 is located above the smoke guiding cavity 130, the smoke exhaust channel 128 includes a smoke inlet 104 and a smoke outlet 142 which are communicated, the smoke guiding cavity 130 is communicated with the smoke exhaust channel 128 through the smoke inlet 104, and at least two smoke guiding portions 106 are disposed in the smoke guiding cavity 130 and can guide the smoke towards the smoke exhaust channel 128.

Specifically, as shown in fig. 1 and 2, the fan 120 is disposed within the smoke evacuation passageway 128 and the smoke guide 106 is disposed within the smoke guide cavity 130.

Specifically, as shown in fig. 1 and 2, the first end 108 of the smoke guide 106 is located below the smoke inlet 104 of the smoke evacuation channel 128 in the vertical direction; the second end 110 of the smoke guide 106 is located laterally of the smoke inlet 104 of the smoke evacuation channel 128. Therefore, in the use process of the range hood, the two sides of the smoke guide cavity 130 of the two smoke guide parts 106 used in pair guide the oil smoke towards the middle of the smoke guide cavity 130, the guided oil smoke is converged at the second interval 118 formed by the two smoke guide parts 106, flows to the smoke inlet 104 through the second interval 118, and is finally discharged through the smoke inlet 104. Accordingly, two sides of the smoke guide cavity 130 of the two smoke guide parts 106 used in pair guide the oil smoke towards two sides of the smoke guide cavity 130, the guided oil smoke is gathered at the first interval 116 formed by the smoke guide parts 106 and the smoke cover 102, flows to the smoke inlet 104 through the first interval 116, and is finally discharged through the smoke inlet 104.

Further, in this embodiment, as shown in fig. 1 and 2, the smoke guide chamber 130 has an opening 132, and the opening 132 is located below the smoke guide 106 and communicates with the smoke inlet 104. In particular, the area of the opening 132 of the smoke guiding chamber 130 is larger than the area of the smoke inlet 104 of the smoke discharging passage 128, so that the smoke guiding hood 102 can be covered above the cooking range to primarily collect the smoke generated from the cooking range.

In this embodiment, as shown in fig. 1 and fig. 2, further, the inner wall of the smoke guiding cavity 130 is tapered in the direction from the opening 132 to the smoke inlet 104, so that the smoke guiding cavity 130 has a certain gathering and collecting effect on the oil smoke, and the smoke guiding portion 106 is matched with the smoke guiding cavity 130, thereby ensuring efficient smoking of the range hood.

A seventh embodiment of the present invention provides a range hood, which, on the basis of the first embodiment, further includes at least two connecting members, as shown in fig. 1, and the number of the connecting members is matched with the number of the smoke guide portions 106. Wherein, the connecting piece is installed at petticoat pipe 102, leads on cigarette portion 106 is connected to the connecting piece, and then guarantees leading the connection of cigarette portion 106 and petticoat pipe 102 through the connecting piece. In addition, the smoke guide 106 is rotatably connected with the smoke cage 102 through a connecting piece, which enables the smoke guide 106 to be compared with the position of the smoke inlet 104.

Specifically, in the process of adjusting the smoke guiding portion 106, the adjustment may be performed manually by a user, or a driving member may be disposed on the smoke hood 102, so as to drive the smoke guiding portion 106 to rotate through the driving member.

Specifically, as shown in fig. 1, the range hood includes a first smoke guide plate 114a and a second smoke guide plate 114b, and the connecting member includes a first connecting member 134a and a second connecting member 134 b. Wherein the first smoke guide plate 114a is rotatably mounted to the smoke cage 102 by a first connector 134a and the second smoke guide plate 114b is rotatably mounted to the smoke cage 102 by a second connector 134 b.

A seventh embodiment of the present invention provides a range hood, on the basis of the first embodiment, as shown in fig. 3 and fig. 6, further, any smoke guiding portion 106 has a third end 136 and a fourth end 138 which are opposite to each other, and in the use process of the range hood, a distance from the third end 136 to a plane where the smoke inlet 104 is located is smaller than a distance from the fourth end 138 to a plane where the smoke inlet 104 is located, so that the smoke guiding portion 106 is in an inclined state as a whole, so that the smoke guiding portion 106 is disposed toward a user side, on one hand, the overall aesthetic feeling of the range hood is improved, and on the other hand, the smoking efficiency of the range hood is ensured. And the oil guide hole and the fourth end 138 are positioned on the same side of the smoke hood 102, so that the oil blocking piece and the smoke guide part 106 are consistent in the inclined direction, and the structural coordination of the oil blocking piece and the smoke guide part is ensured.

Specifically, as shown in fig. 3, the first end 108 of the smoke guiding portion 106 is an inner end, the second end 110 is a side end, and the first end 108 and the second end 110 are distributed along the left-right direction of the range hood; the third end 136 of the smoke guiding portion 106 is a front end, the fourth end 138 is a rear end, and the third end 136 and the fourth end 138 are distributed along the front-rear direction of the range hood.

First embodiment, as shown in fig. 1 and fig. 2, a range hood provided in this embodiment includes a hood 102, a smoke inlet 104, and at least two smoke guide portions 106 used in cooperation with each other. The smoke inlet 104 is arranged on the smoke hood 102, the two smoke guide parts 106 are arranged on the smoke hood 102 in parallel and used in pairs, and one pair or more pairs of smoke guide parts 106 can be arranged on the smoke hood 102. As shown in fig. 3 and 4, each smoke guide 106 includes a first end 108 and a second end 110, which are disposed opposite to each other, the first ends 108 of the two paired smoke guide 106 are close to each other, and the second ends 110 of the two paired smoke guide 106 are far from each other. Any smoke guide 106 also includes a smoke guide surface 112 facing away from the smoke inlet 104, the smoke guide surface 112 extends from the first end 108 of the smoke guide 106 to the second end 110 of the smoke guide 106, and the smoke guide 106 is bent and extends between the first end 108 and the second end 110 to form the smoke guide surface 112 with a high middle and two low sides.

In this way, the range hood proposed in this embodiment cooperates with the two smoke guide portions 106 used in pair, and particularly ensures that the smoke guide surface 112 of the smoke guide portion 106 is set to be a curved surface, so that the oil smoke on both sides of the smoke hood 102 is exhausted out of the smoke hood 102 at the two smoke guide portions 106. And the problem of large oil smoke capture interference caused by the side of the center of the cooking bench and the center of the range hood is solved, so that the oil smoke retention time is shortened, the oil smoke retention time is smoother, and effective smoke guide is realized.

In this embodiment, further, as shown in fig. 5 and 6, the smoke guide surface 112 is provided as a curved surface and protrudes toward the side facing away from the smoke inlet 104. Wherein, the two paired smoke guide parts 106 are arranged in parallel in the smoke hood 102, so that the smoke guide surfaces 112 of the two smoke guide parts 106 are also arranged in parallel in the smoke hood 102, and the smoke guide surfaces 112 of the two paired smoke guide parts 106 correspond to the positions of the two pan bodies 200 on the cooking bench.

In this embodiment, further, in the use state of the range hood, the two smoke guide portions 106 used in pair are in the working posture. At this time, the postures of the two smoke guide portions 106 used in pair include, but are not limited to, the following cases:

in the first case, the distance between the smoke guide surface 112 and the plane of the smoke inlet 104 increases from the first end 108 to the second end 110 and then decreases. That is, the two smoke guide surfaces 112 are configured to be W-shaped, so that the cooking fumes generated from the cooking bench can flow towards the first end 108 and the second end 110 of the smoke guide 106 after contacting the smoke guide surfaces 112, so that the cooking fumes can flow to both sides and the middle of the smoke cage 102 simultaneously under the effect of the smoke guide surfaces 112.

In the second case, the distance between the smoke guide surface 112 and the plane of the smoke inlet 104 increases gradually from the first end 108 to the second end 110. That is, the two smoke guide surfaces 112 used in pairs form an inverted U shape, so that the oil smoke generated by the cooking bench will respectively flow towards the first end 108 of the smoke guide portion 106 after contacting the smoke guide surfaces 112, so that the oil smoke is converged to the middle of the smoke hood 102 by the smoke guide surfaces 112.

In the third case, the distance between the smoke guide surface 112 and the plane of the smoke inlet 104 gradually decreases from the first end 108 to the second end 110. That is, the two smoke guide surfaces 112 are configured to be U-shaped, so that the oil smoke generated from the cooking bench contacts the smoke guide surfaces 112 and then flows towards the second ends 110 of the two sides of the smoke guide portion 106, so that the oil smoke flows towards the two sides of the smoke cage 102 under the action of the smoke guide surfaces 112.

In this embodiment, as shown in fig. 6, the smoke guide 106 is a smoke guide plate, and the overall thickness of the smoke guide 106 is reduced, thereby reducing the weight of the smoke guide 106.

In this embodiment, further, the second end 110 of the smoke guide 106 is coupled to the smoke cage 102 and the first end 108 of the smoke guide 106 is utilized as a free end, such that the smoke guide 106 is of a movable design.

Further in this embodiment, as shown in fig. 1 and 2, the second end 110 of the smoke guide 106 is spaced from the smoke cage 102 by a first spacing 116, the first ends 108 of the two smoke guide 106 pairs are spaced by a second spacing 118, and the first and second spacings 116, 118 are both in communication with the smoke inlet 104. The cooking fumes can be discharged from the first and/or second spaces 116, 118 by the smoke guide surface 112.

In this embodiment, as shown in fig. 1 and fig. 2, the range hood further includes a fan 120 and an oil filter screen 122. The fan 120 is thus operated to create a negative pressure within the smoke evacuation channel 128 to draw the cooking fumes into the smoke guide chamber 130 and to draw the cooking fumes into the smoke evacuation channel 128 along the smoke guide 106 for mating use. An oil screen 122 may be provided at the smoke inlet 104, and the oil smoke passes through the oil screen 122 by the driving of the fan 120, and small oil droplets mixed in the oil smoke are captured by the oil screen 122.

In this embodiment, as shown in fig. 7 and 8, the middle of the oil filter screen 122 protrudes toward the side of the fan 120, so that the oil filter screen 122 is blocked by the oil smoke to a great extent, and the oil condensed on the oil filter screen 122 is guided conveniently.

In this embodiment, further, as shown in fig. 7 and 8, the inner wall of the oil filter screen 122 is reduced in the direction from the smoke guide 106 to the fan 120, so that the oil filter screen 122 itself has a certain gathering and collecting effect on the oil smoke.

In this embodiment, further, as shown in fig. 7 and 8, the oil filter screen 122 includes a dividing belt 124 and filter screens 126 disposed on both sides of the dividing belt 124. The middle convex part of the oil filter screen 122 is provided with a middle dividing strip 124, and the two filter screens 126 are inclined towards the periphery, so that the condensed oil on the middle dividing strip 124 is guided while the oil dripping of the second interval 118 between the two smoke guiding parts 106 is avoided.

In this embodiment, as shown in fig. 7 and 8, the smoke guide 106 extends from the second end 110 to the first end 108, and the first end 108 of the smoke guide 106 extends between two screens 126, so that when the oil smoke is separated from the first end 108 of the smoke guide 106, the oil smoke can be directly sucked by the upper negative pressure area.

In this embodiment, further, as shown in fig. 1 and 2, the smoke cage 102 includes a smoke guide chamber 130 and a smoke evacuation passageway 128. The smoke exhaust channel 128 comprises a smoke inlet 104 and a smoke outlet 142 which are communicated, the smoke guide cavity 130 is communicated with the smoke exhaust channel 128 through the smoke inlet 104, the fan 120 is arranged in the smoke exhaust channel 128, and the smoke guide part 106 is arranged in the smoke guide cavity 130.

In this embodiment, further, as shown in fig. 1 and 2, the smoke guide chamber 130 has an opening 132, and the opening 132 is located below the smoke guide 106 and communicates with the smoke inlet 104. The inner wall of the smoke guide chamber 130 tapers from the direction of the opening 132 into the smoke inlet 104.

In this embodiment, further, as shown in FIG. 1, the first smoke guide plate 114a is rotatably mounted to the smoke cage 102 via a first connector 134a and the second smoke guide plate 114b is rotatably mounted to the smoke cage 102 via a second connector 134 b.

In this embodiment, as shown in fig. 3 and 6, the smoke guiding portion 106 has a third end 136 and a fourth end 138 opposite to each other, and during the use of the range hood, the distance from the third end 136 to the plane where the smoke inlet 104 is located is smaller than the distance from the fourth end 138 to the plane where the smoke inlet 104 is located. The smoke guide 106 is inclined as a whole, and the smoke guide 106 is provided toward the user.

Specifically, the first end 108 of the smoke guiding portion 106 is an inner end, the second end 110 is a side end, and the first end 108 and the second end 110 are distributed along the left-right direction of the range hood; the third end 136 of the smoke guiding portion 106 is a front end, the fourth end 138 is a rear end, and the third end 136 and the fourth end 138 are distributed along the front-rear direction of the range hood.

In a second specific embodiment, the range hood provided in the embodiment of the present invention adopts two curved smoke guide portions 106 connected in parallel, so as to solve the technical problems in the related art that the smoke guide plate attitude is not consistent with the flow direction of the oil smoke on the left and right sides, which easily causes large interference of oil smoke flow, long oil smoke retention time, long path, easy smoke leakage, and the like. The range hood provided by the embodiment of the invention utilizes the oil filter screen 122 separated in the middle to form the effects of oil guiding and smoke control, and solves the technical problem of oil guiding in the middle area in the related technology.

Specifically, as shown in fig. 1 and fig. 2, a fan 120 is disposed in the smoke exhaust channel 128, and a rotation axis of the fan 120 is parallel to a wall on which the range hood is mounted; a smoke inlet 104 is arranged below the smoke exhaust channel 128, the smoke inlet 104 is connected with a smoke guide cavity 130, and an oil filter screen 122 is arranged at the joint of the smoke guide cavity 130 and the smoke exhaust channel 128; a first smoke guide plate 114a and a second smoke guide plate 114b are arranged below the oil filter screen 122, and the first smoke guide plate 114a and the second smoke guide plate 114b are connected in parallel and are connected with the oil filter screen 122 in series. As shown in fig. 3 and 4, the first smoke guide plate 114a and the second smoke guide plate 114b are located below the oil filter screen 122, and the first smoke guide plate 114a and the second smoke guide plate 114b are curved to form a posture in which the outer side is high and the middle is low, or a posture in which both sides are high and the middle is low.

Specifically, as shown in fig. 5, a predetermined distance exists between the smoke guide 106 and the oil filter screen 122 to ensure that the oil smoke passes through; the first smoke guide plate 114a is mounted on the left side of the housing by a first connector 134a, and the second smoke guide plate 114b is mounted on the right side of the housing by a second connector 134 b.

As shown in fig. 6, the smoke guide portion 106 has a curved structure, and the smoke guide surface 112 of the smoke guide portion 106 is a curved surface. As shown in fig. 5, from the center of the smoke source, the outer portion passes through the peripheral wall of the smoke guide 106, flows through the outer smoke guide 130 and enters the smoke inlet 104; flows from the center of the smoke source to the inner side part through the wall-attached flow guide of the edge of the smoke guide plate, flows to the center of the smoke machine and enters the smoke inlet 104.

As shown in fig. 7 and 8, the oil filter screen 122 is a structure with a convex middle part upward, so that the blockage of the airflow flow of the smoke inlet 104 is reduced, and the oil guide of the condensed oil on the oil filter screen 122 is facilitated. The convex part in the middle of the oil filter screen 122 is provided with a separator 124, and two filter screens 126 are inclined towards the periphery, so that the condensed oil on the separator 124 in the middle is guided while the oil dripping in the second interval 118 between the first smoke guide plate 114a and the second smoke guide plate 114b is avoided. In addition, the first end 108 of the smoke guide 106 extends between two screens 126.

According to the embodiment of the invention, through the solution that the two bent smoke guide parts 106 are obliquely arranged, the problem that the smoke guide parts 106 have large interference on the flow of double-stove smoke sources, particularly the problem that the interference on the oil smoke capture at the center of the cooker deviated from the center of the range hood is large is solved, so that the oil smoke retention time is shortened and is smoother, and the effective smoke guide is realized. The oil filter screen 122 protrudes upwards in the middle, and the problem of oil guiding at a second interval between the first smoke guiding plate 114a and the second smoke guiding plate 114b is solved under the condition of simple structure and no additional parts; meanwhile, the oil filter screen 122 with the three-dimensional structure and the straight smoke inlet 104 are arranged in a staggered mode, so that the air inlet blocking loss is reduced, and the air performance of the range hood is improved. Further, an oil cup 140 may be disposed below the oil filter screen 122, and the oil cup 140 may receive the condensed oil.

According to the range hood provided by the embodiment of the invention, through the matching of the bent first smoke guide plate 114a and the bent second smoke guide plate 114b, the oil filter screen 122 protruding in the middle and the fan 120, the problems of smoke control and oil circuit in double-stove smoke source smoking can be effectively solved, meanwhile, the air flow is smoother, and the air performance of the range hood is improved.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected", "mounted", "fixed", and the like are to be construed broadly and may include, for example, fixed connections, detachable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present specification, the description of "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (15)

1. A range hood, comprising:

a smoke cage;

the smoke inlet is arranged on the smoke hood;

at least two smoke guiding parts, set up in the petticoat pipe, arbitrary smoke guiding part includes relative first end and second end, at least two smoke guiding part first end is close to each other, smoke guiding part still includes deviating from the smoke guiding surface of smoke inlet, smoke guiding surface is in first end with crooked extension between the second end, and can be used to the orientation first end and/or the second end is led the cigarette.

2. The range hood of claim 1,

the smoke guide surface is an arc surface and protrudes towards one side deviating from the smoke inlet.

3. The range hood of claim 2,

from the first end to the second end, the distance between the smoke guide surface and the plane where the smoke inlet is located is increased firstly and then reduced; or

From the first end to the second end, the distance between the smoke guide surface and the plane where the smoke inlet is located is gradually increased; or

From the first end to the second end, the distance between the smoke guide surface and the plane where the smoke inlet is located is gradually reduced.

4. The range hood of any one of claims 1 to 3,

the smoke guide part is a smoke guide plate; and/or

The second end of smoke guide part with the petticoat pipe is connected, the first end of smoke guide part is the free end.

5. A range hood according to any one of claims 1 to 3,

a first interval is formed between the second end of the smoke guide part and the smoke cover, and the first interval is communicated with the smoke inlet;

and a second interval is formed between the first ends of the two smoke guide parts, and the second interval is communicated with the smoke inlet.

6. The range hood according to any one of claims 1 to 3, further comprising:

the fan is arranged on the smoke hood, and the fan and the two smoke guide parts are positioned on two sides of the smoke inlet;

the oil filter screen is arranged on the smoke hood, and the smoke filter screen is positioned at the smoke inlet or between the smoke inlet and the smoke guide part.

7. The range hood of claim 6,

the middle part of the oil filter screen is arranged towards one side of the fan in a protruding mode.

8. The range hood of claim 6,

and the inner wall of the oil filter screen is reduced from the smoke guide part to the fan.

9. The range hood of claim 6, wherein the oil filter screen comprises:

the separation belt is arranged between the fan and the smoke guide part;

and the two filter screens are connected to two sides of the separation belt and are obliquely arranged relative to the plane where the smoke inlet is located.

10. The range hood of claim 9,

the first end of the smoke guide part extends to between the two filter screens.

11. The range hood of claim 6, wherein the hood comprises:

the smoke exhaust channel is provided with the smoke inlet and the smoke outlet which are communicated;

lead the cigarette chamber, through advance the mouth with smoke exhaust channel is linked together, two lead cigarette portion set up in lead in the cigarette chamber.

12. The range hood of claim 11,

the smoke guide cavity is provided with an opening, the opening is communicated with the smoke inlet, and the two smoke guide parts are positioned between the opening and the smoke inlet.

13. The range hood of claim 12,

the inner wall of the smoke guide cavity is gradually reduced from the opening to the smoke inlet.

14. The range hood of any one of claims 1 to 3, further comprising:

at least two connecting pieces, connect respectively in petticoat pipe and at least two lead cigarette portion, lead cigarette portion and pass through the connecting piece with petticoat pipe rotatable coupling.

15. The range hood of any one of claims 1 to 3,

the smoke guide part is provided with a third end and a fourth end which are opposite, and the distance from the third end to the plane where the smoke inlet is located is smaller than the distance from the fourth end to the plane where the smoke inlet is located.

Images