CN216897436U - Fume exhaustor - Google Patents

Abstract

The utility model discloses a range hood. A range hood, comprising: the fan assembly comprises a body, wherein a fan assembly is arranged in the body; the lifting assembly is movably connected with the body and comprises two guide plates which are connected in a rotating mode, a included angle is formed between the two guide plates and is arranged at each guide plate, each guide plate is provided with a smoking hole, each guide plate is movably connected with the body, the lifting assembly is relative to the body and is arranged at different positions, the included angle between the two guide plates is reduced, and the distance between the two guide plate parts of the body is reduced. Above-mentioned lampblack absorber changes through the position that lifting unit descends for contained angle between two guide plates diminishes and connects distance between two guide plate positions of body diminishes, from this, the whole smoking structure that is formed by two guide plates is more elongated, and is more favourable to the negative pressure region distribution of guide plate.

Description

Fume exhaustor

Technical Field

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

Background

Along with the improvement of living standard of people, people also have higher and higher requirements on kitchen environment, and higher requirements are provided for the smoking capability of the range hood. Under this background, the lampblack absorber includes lifting unit, through lifting unit's lift, changes the position of smoking mouth, and then can improve the smoking effect. In the correlation technique, lifting unit is including being two guide plates of V type distribution, and lifting unit goes up and down the in-process, can change the size and the angle in the negative pressure region of guide plate, and then provides the smoking power that matches with the oil smoke size. However, the adjustment of the distribution of the lift assembly to the negative pressure region is still not ideal.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a range hood.

A range hood of an embodiment of the present invention includes:

the fan assembly comprises a body, wherein a fan assembly is arranged in the body;

lifting unit, swing joint the body, lifting unit is including rotating two guide plates of connection, form an contained angle between two guide plates, every the guide plate is equipped with the smoking mouth, every guide plate swing joint the body lifting unit for under the body condition of descending to different positions, contained angle between two guide plates diminishes, connects distance between two guide plate positions of body diminishes.

Above-mentioned lampblack absorber through the position change that lifting unit descends for contained angle between two guide plates diminishes and connects distance between two guide plate positions of body diminishes, from this, the smoking structure that is formed by two guide plates is whole longer, and is more favourable to the negative pressure regional distribution of guide plate.

In some embodiments, the body includes a sliding part and two opposite side plates, the side plates are provided with sliding grooves, the sliding part is rotatably connected with the guide plate, the sliding part is at least partially located in the sliding grooves, and during the position change of the lifting assembly, the sliding part is configured to slide in the sliding grooves to adjust the inclination angle of the guide plate relative to the body and adjust the position of the guide plate part connected with the body.

In some embodiments, the sliding member includes a sliding sleeve, the sliding sleeve penetrates through the sliding groove, and the body further includes a fixing shaft, the fixing shaft penetrates through the sliding sleeve and is connected with the guide plate.

In some embodiments, the body further includes a support plate, the sliding groove includes a first groove wall and a second groove wall opposite to the first groove wall, the first groove wall is provided with a notch, the support plate penetrates through the notch or the sliding groove, the support plate is opposite to the second groove wall, and the sliding member is configured to slide in a space between the support plate and the second groove wall.

In some embodiments, each of the guide plates is provided with a first oil net and a second oil net, the positions of which are relatively fixed, the lifting assembly can be switched between a first position and a second position relative to the body, in the case of the first position of the lifting assembly, the first oil net is exposed outside the body, and the second oil net is hidden inside the body, in the case of the second position of the lifting assembly, the first oil net and the second oil net are both exposed outside the body, and the first oil net and the second oil net are both formed with the smoke suction ports.

In certain embodiments, the overall length of the baffle is constant and the angle of inclination of the baffle relative to the body varies with any position of the lift assembly relative to the body.

In certain embodiments, the lampblack absorber includes drive assembly and coupling assembling, drive assembly passes through coupling assembling connects lifting unit, lifting unit includes the bottom plate, coupling assembling includes the crossbeam, the bottom plate with the crossbeam is followed lampblack absorber length direction extends, crossbeam length with bottom plate length is the same, the crossbeam is connected the bottom plate.

In some embodiments, the connecting assembly includes a first fixing member, a connecting member and a second fixing member, the driving assembly is fixed to the first fixing member, the second fixing member and the connecting member are fixed to the cross beam, the driving assembly includes a sliding block, the sliding block is connected to the connecting member, the first fixing member and the second fixing member can slide relatively, and the first fixing member is formed with a channel for limiting the sliding of the second fixing member.

In some embodiments, the first fixing member and the second fixing member are connected by a sliding rail assembly.

In some embodiments, the second fixing member includes two, the first fixing member includes a plate body and two side wings, the two side wings are respectively disposed on two sides of the plate body, the two side wings are respectively located on outer sides of the two second fixing members, and the channel is formed between the two side wings.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

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

fig. 1 is a schematic perspective view of a range hood according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a range hood of an embodiment of the present invention;

FIG. 3 is another schematic cross-sectional view of a range hood of an embodiment of the present invention;

fig. 4 is a schematic diagram comparing a range hood in the related art with a lifting assembly of a range hood according to an embodiment of the present invention;

FIG. 5 is a schematic view of a partial structure of a range hood according to an embodiment of the present invention;

FIG. 6 is a further cross-sectional schematic view of a range hood of an embodiment of the present invention;

FIG. 7 is an enlarged schematic view of portion B of FIG. 2;

FIG. 8 is a schematic front view of a range hood of an embodiment of the present invention;

FIG. 9 is a bottom schematic view of a range hood of an embodiment of the present invention;

fig. 10 is another perspective view of a range hood of an embodiment of the present invention;

fig. 11 is another schematic front view of a range hood of an embodiment of the present invention;

fig. 12 is another bottom schematic view of a range hood of an embodiment of the present invention;

FIG. 13 is a schematic illustration comparing a first position and a second position of a lift assembly in accordance with an embodiment of the present invention;

fig. 14 is a partially exploded schematic view of a range hood of an embodiment of the present invention;

FIG. 15 is another partially exploded schematic view of a range hood of an embodiment of the present invention;

fig. 16 is still another partially exploded schematic view of a range hood according to an embodiment of the present invention.

Detailed Description

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

Referring to fig. 1 to 6, a range hood 100 according to an embodiment of the present invention includes a body 12 and a lifting assembly 14.

A fan assembly 16 is disposed within the body 12. Body 12 is connected to lifting unit 14 activity, and lifting unit 14 includes two guide plates 18 of rotation connection, forms an contained angle between two guide plates 18, and every guide plate 18 is equipped with smoking mouth 23, and every guide plate 18 swing joint body 12 descends to the condition of different positions for body 12 at lifting unit 14, and the contained angle between two guide plates 18 diminishes, and the distance between two guide plate 18 positions 36 of connecting body 12 diminishes.

Above-mentioned lampblack absorber 100 through the position change that lifting unit 14 descends for the contained angle between two guide plates 18 diminishes and the distance between two guide plate 18 positions 36 of connecting body 12 diminishes, and from this, the smoking structure that is formed by two guide plates 18 is whole longer, and is more favorable to the regional distribution of negative pressure of guide plate 18.

Specifically, when viewed from the side (left side or right side) of the range hood 100, the two flow deflectors 18 are connected to form a V-shaped structure, and the oil net of each flow deflector 18 can form a smoke suction port 23, that is, the smoke suction ports 23 on both sides of the lifting assembly 14 are distributed in a V shape.

Referring to fig. 4, fig. 4 is a schematic diagram of two baffles 18 and body 12, wherein the solid line represents the initial position of lift assembly 14, and the dashed line represents the lowered position of lift assembly 14.

In the initial position, the first angle between the two deflectors in the related art is the same as the second angle between the two deflectors 18 of the present embodiment.

Under the same distance L's of lifting unit decline circumstances, in the correlation technique, the distance between two guide plate positions of connecting the body is unchangeable, and first contained angle diminishes.

In the embodiment of the present invention, the distance between the two portions 36 of the air guiding plate 18 of the connecting body 12 is smaller, the second included angle is smaller, but the second included angle is smaller than the first included angle, and the variation of the second included angle is larger, so that under the same descending stroke L, the variation of the inclination angle a2 of the air guiding plate 18 relative to the horizontal plane in the embodiment is larger than the variation of the inclination angle a1 of the air guiding plate relative to the horizontal plane in the related art, so that after the ascending and descending assembly 14 descends, the triangle formed by the two air guiding plates 18 and the connecting body 12 or the V-shaped structure formed by the two air guiding plates 18 is longer, and the distribution effect of the negative pressure areas on the two sides of the air guiding plate 18 is better.

During the descending process of the lifting assembly 14, the smoking port 23 descends and the inclination angle A of the smoking port 23 is changed (the negative pressure distribution can be optimized by increasing the inclination angle A, the inclination angle A of the guide plate 18 relative to the horizontal plane ranges from 35 degrees to 65 degrees, and the lifting height H of the lifting assembly 14 ranges from 100 mm to 250mm, as shown in FIG. 13).

When lift assembly 14 is raised to different positions relative to body 12, the angle between baffles 18 increases, and the distance between portions 36 of baffles 18 that connect to body 12 increases.

The range hood 100 further comprises an oil cup 24, the oil cup 24 is located at the bottom of the lifting assembly 14, and the oil cup 24 can collect oil drops dropping from the guide plate 18. In one embodiment, range Hood 100 can be a mid-Island range Hood 100 or an Island range Hood 100(Island Hood), and range Hood 100 can be mounted below the ceiling and above the cooktop. The cooktop may comprise a gas cooker, or an induction cooker. The cooking range can comprise one or more furnace ends, and a cooking pot can be placed on the furnace ends. The range hood 100 may be installed right above the cooktop, and the lifting assembly 14 corresponds to a position of a burner of the cooktop. During cooking, the range hood 100 is turned on to absorb oil smoke generated during the cooking process.

Referring to fig. 3, the fan assembly 16 includes a volute 59 and a fan 60, the fan 60 is located in the volute 59, air inlets 62 are disposed on two opposite sides of the volute 59, and when the fan 60 is started, the fan can suck the oil smoke from the smoke outlets 23 on two sides through the two air inlets 62. Referring to fig. 5, the volute 59 further has an air outlet 83, and the air outlet 83 is located on a circumferential side surface of the volute 59. Referring to fig. 3, two air inlets 62 are located on the left and right sides of the volute 59.

In some embodiments, the body 12 includes a slide 38 and two opposing side plates 40. The side plate 40 is provided with a sliding groove 42, the sliding member 38 is rotatably connected with the guide plate 18, the sliding member 38 is at least partially located in the sliding groove 42, and during the position change of the lifting assembly 14, the sliding member 38 is configured to slide in the sliding groove 42 to adjust the inclination angle of the guide plate 18 relative to the body 12 and adjust the position of the portion 36 of the guide plate 18 connected with the body 12. In this manner, movement of baffle 18 may be enabled to accommodate the raising and lowering of lift assembly 14.

Specifically, the upper end of baffle 18 may be partially located between two side plates 4040, and two sliders 38 are rotatably connected to the upper left end and the upper right end of one baffle 18, respectively. The chute 42 may be inclined downwardly at an angle relative to horizontal. During the lifting process of lifting assembly 14, the position of lifting assembly 14 changes, the inclination angle of whole baffle 18 changes, and the position of baffle 18 portion 36 of connecting body 12 changes.

Specifically, in the descending process of the lifting assembly 14, the inclination angle a of the guide plate 18 relative to the horizontal plane gradually increases, the included angle between the two guide plates 18 gradually decreases, the guide plate 18 appears more inclined, the position of the guide plate 18 part 36 of the connection body 12 moves obliquely downward, so that the distance between the two guide plate 18 parts 36 of the connection body 12 decreases, meanwhile, the guide plate 18 drives the sliding piece 38 to move downward in the sliding groove 42, so as to adapt to the length change of the exposed part of the guide plate 18, and meanwhile, the guide plate 18 can rotate relative to the sliding piece 38, so as to adapt to the change of the inclination angle of the guide plate 18.

In this embodiment, the body 12 includes a frame assembly 64 and a fixing assembly 66, the fan assembly 16 may be mounted in the frame assembly 64, the fixing assembly 66 is fixedly connected to the frame assembly 64, and the lifting assembly 14 is movably connected to the fixing assembly 66. The securing assembly 66 includes two side plates 40. Each guide plate 18 is movably connected with two side plates 40, and the guide plate 18 part 36 of the connecting body 12 can be the guide plate 18 part 36 connected with the side plates 40.

The range hood 100 further comprises a decorative cover 81, and the decorative cover 81 is sleeved on the periphery of the rack assembly 64, so that the range hood 100 is more attractive.

In some embodiments, the sliding member 38 includes a sliding sleeve 39, the sliding sleeve 39 passes through the sliding slot 42, and the body 12 further includes a fixed shaft 41, and the fixed shaft 41 passes through the sliding sleeve 39 and is connected with the deflector 18. In this way, a rotational connection of deflector 18 to slide 38 can be achieved.

Specifically, the sliding sleeve 39 is provided at the outer circumference of the fixed shaft 41, and the fixed shaft 41 may be fixedly coupled with the upper end of the deflector 18. During the lifting process of the lifting assembly 14, the sliding sleeve 39 can slide back and forth along the sliding groove 42 and drive the upper end of the deflector 18 to move up and down, and the deflector 18 and the fixed shaft 41 can rotate around the axis of the sliding sleeve 39, so that the deflector 18 adapts to the lifting motion of the lifting assembly 14.

In this embodiment, the portion 36 of the deflector 18 of the connection body 12 may be a portion where the upper ends of the deflectors 18 are connected to the fixed shaft 41, and when the lifting assembly 14 is lifted, the upper ends of the two deflectors 18 are separated from each other in an inclined manner, and the distance between the upper ends of the two deflectors 18 and the fixed shaft 41 is increased.

During the descending process of the lifting assembly 14, the upper ends of the two guide plates 18 are obliquely and downwards close to each other, and the distance between the connecting parts of the upper ends of the two guide plates 18 and the fixed shaft 41 is reduced. In other embodiments, the portion 36 of the baffle 18 of the connection body 12 may also be the fixed shaft 41, the sliding sleeve 39, or a portion where the fixed shaft 41 is connected with the sliding sleeve 39, and the like, and is not limited herein.

In one embodiment, stationary shaft 41 may be threaded, welded, snapped, etc. to baffle 18. In one embodiment, the stationary shaft 41 may be rotatably coupled to the baffle 18, and the stationary shaft 41 may be fixedly or rotatably coupled to the sliding sleeve 39.

In some embodiments, referring to fig. 7, the body 12 further includes a supporting plate 43, the sliding slot 42 includes a first slot wall 45 and a second slot wall 47 opposite to each other, the first slot wall 45 is provided with a notch 49, the supporting plate 43 is disposed through the notch 49 or the sliding slot 42, the supporting plate 43 is opposite to the second slot wall 47, and the sliding member 38 is configured to slide in a space between the supporting plate 43 and the second slot wall 47. Thus, the size of the slide groove 42 can be conveniently adjusted.

Specifically, in the embodiment shown in fig. 7, the slide groove 42 is a track-type, and the second groove wall 47 and the first groove wall 45 are two groove walls extending in the longitudinal direction of the slide groove 42. The notch 49 is formed on the first groove wall 45 along the length direction of the sliding groove 42, the support plate 43 is approximately U-shaped, the support plate 43 is installed on the first groove wall 45 from the U-shaped opening of the support plate 43, the bottom of the support plate 43 is located in the notch 49 or located in the sliding groove 42, and two sides of the U-shape respectively clamp the side plate 40 and are fixed with the side plate 40.

In the case where the bottom of the support plate 43 is located at the notch 49, the distance between the bottom of the support plate 43 and the second groove wall 47 is larger, and the space between the support plate 43 and the second groove wall 47 is wider, so that it is possible to accommodate a larger-sized slide member 38, or in the case of a slide member 38 of the same size, to provide a more relaxed sliding space.

In the case where the bottom of the support plate 43 is located at the slide groove 42, the distance between the bottom of the support plate 43 and the second groove wall 47 is small, and the space between the support plate 43 and the second groove wall 47 is narrow, so that it is possible to accommodate a smaller-sized slide member 38, or to provide a tighter sliding space in the case of a slide member 38 of the same size.

In summary, the clamping force on the sliding member 38 can be adjusted by adjusting the position of the supporting plate 43, or the supporting plate 43 can be adapted to different sizes of the sliding member 38, and the supporting plate 43 can provide a larger contact area with the sliding member 38 than the groove wall of the sliding groove 42, so that the lifting and lowering of the lifting assembly 14 can be more translational. It is understood that the shape of the support plate may be other shapes, and is not particularly limited herein.

In some embodiments, each baffle 18 is provided with a first oil screen 20 and a second oil screen 22 which are fixed relative to each other, the lifting assembly 14 can be switched between a first position and a second position relative to the body 12, in the case of the lifting assembly 14 in the first position, the first oil screen 20 is exposed outside the body 12 and the second oil screen 22 is hidden inside the body 12, in the case of the lifting assembly 14 in the second position, both the first oil screen 20 and the second oil screen 22 are exposed outside the body 12, and both the first oil screen 20 and the second oil screen 22 are formed with smoke suction ports 23. Thus, the position of the lifting component 14 is changed, so that the first oil net 20 alone or the first oil net and the second oil net 22 form a smoking port 23, the negative pressure distribution is improved, and the smoking effect can be improved.

Specifically, when the range has less oil smoke, the lifting assembly 14 may be located at the first position, and the range hood 100 sucks the oil smoke through the first oil mesh 20.

When the oil smoke of the cooker is large, the lifting assembly 14 can be lowered to the second position, and the range hood 100 sucks the oil smoke through the first oil net 20 and the second oil net 22.

On the one hand, the smoking mouth 23 that two oil net formed descends, can be closer to the cooking utensils, promotes the smoking effect, and on the other hand 14 lift in-process can change the inclination of oil net smoking mouth 23, improves the negative pressure and distributes, promotes the smoking effect. In addition, the range hood 100 may further include a controller and a smoke sensor, the controller is electrically connected to the smoke sensor, and the smoke sensor is used to collect smoke data. The controller is used for calculating oil smoke concentration according to the oil smoke data and controlling the lifting assembly 14 to lift to a certain working position according to the oil smoke concentration. The working position may be the first position, the second position, or other positions. The corresponding relationship between the oil smoke concentration and the working position can be calibrated in advance and stored in the range hood 100.

The oil smoke sensor can be installed on the side wall of the oil smoke channel. The soot sensor may include a light emitting unit and a light receiving unit.

In one embodiment, the light emitting unit and the light receiving unit are arranged along a straight line along the radial direction of the lampblack channel, and the light emitting optical path of the light emitting unit is basically aligned with the receiving optical path of the light receiving unit.

When oil smoke passes through an oil smoke channel between the light emitting unit and the light receiving unit, due to the existence of oil smoke particles, light emitted by the light emitting unit is partially shielded, light intensity received by the light receiving unit can be reduced, and a light intensity signal output by the light receiving unit is correspondingly changed. The controller calculates the corresponding oil smoke concentration by collecting the light intensity signal output by the light receiving unit. In this embodiment, the magnitude of the light intensity signal is inversely related to the magnitude of the soot concentration.

In one embodiment, the light emitting unit and the light receiving unit may be arranged in a staggered manner along the circumferential direction of the lampblack channel, and an included angle larger than zero degrees and smaller than 180 degrees is formed between a light emitting path of the light emitting unit and a light receiving path of the light receiving unit.

When oil smoke passes through an oil smoke channel between the light emitting unit and the light receiving unit, due to the existence of oil smoke particles, light emitted by the light emitting unit is reflected, the light intensity received by the light receiving unit is increased, and the light intensity signal output by the light receiving unit is correspondingly changed. The controller calculates the corresponding oil smoke concentration by collecting the light intensity signal output by the light receiving unit. In this embodiment, the magnitude of the light intensity signal is positively correlated with the magnitude of the soot concentration.

It will be appreciated that the lift assembly 14 may be located in other positions besides the first and second positions, such that the lift assembly 14 may be located in the first, second and other positions to provide different smoking capabilities to adapt to the smoke size by controlling the lift stroke of the lift assembly 14.

In one embodiment, the first position may be a position at which the maximum travel of the lift assembly 14 is raised, and the second position may be a position at which the maximum travel of the lift assembly 14 is lowered. When the lifting assembly 14 is located at the second position (as shown in the right view of fig. 13), the distance between the lifting assembly 14 and the cooker is the smallest, or the distance between the oil cup 24 and the body 12 is the largest; with the riser assembly 14 in the first position (left view in fig. 13), the distance between the riser assembly 14 and the cooktop is the greatest, or the distance between the oil cup 24 and the body 12 is the smallest. It is understood that in other embodiments, the first position and the second position may be other positions, and are not limited in particular.

With reference to fig. 1, 8 and 9, when the lifting assembly 14 is located at the first position, the second oil net 22 is entirely or mostly hidden in the body 12, and does not participate in smoking or participates in smoking with little participation. Referring to fig. 10-12, when the lifting assembly 14 is located at the second position, the second oil net 22 is entirely or mostly exposed outside the body 12, and participates in smoking, or participates in smoking with a large amount.

Whether in the first position, the second position, or any other position, the first oil screen 20 is exposed to the exterior of the body 12 in its entirety, or for the most part, and is involved in smoking. The first oil screen 20 may include an outer oil screen and an inner oil screen, which are partially overlapped. Both the outer oil screen and the inner oil screen can be detachably mounted on the guide plate 18 so as to facilitate cleaning of the oil screens. In addition, a glass panel is further installed on the air deflector 18, so that the air deflector 18 is convenient to clean.

The smoking opening 23 formed by the first oil net 20 can be used as a lower smoking opening 23, and the smoking opening 23 formed by the second oil net 22 can be used as an upper smoking opening 23, so that the smoking areas of the lower smoking opening 23 for main smoking and the upper smoking opening 23 for auxiliary smoking are distributed.

In one embodiment, first oil screen 20 and/or second oil screen 22 may be mounted at different openings of baffle 18.

In one embodiment, first oil screen 20 and/or second oil screen 22 may be formed by directly opening holes in baffle 18. The mesh area formed by the oil net forms the smoking opening 23. The participation degree of different oil screens in absorbing the oil smoke is changed by the lifting movement of the lifting assembly 14.

In one example, the first oil screen 20 and the second oil screen 22 may be made of metal.

In some embodiments, the first oil screen 20 is provided with a plurality of first smoke holes in a bar shape, which are arranged at intervals along the length direction of the range hood 100. Thus, the smoking effect can be improved.

Specifically, the range hood 100 of the embodiment is long as a whole, and the plurality of first smoke suction holes 25 in the shape of a strip are arranged along the length direction of the range hood 100, so that the smoke suction area formed by the first oil screen 20 can basically cover the oil smoke area generated by the cooker. The plurality of first smoking apertures 25 may be arranged in parallel.

In certain embodiments, the second oil screen 22 is a honeycomb oil screen structure. Therefore, the oil smoke can be sucked away.

Specifically, when the generated oil smoke rises, most of the oil smoke is sucked away by the smoke suction port 23 formed by the first oil net 20, and a small part of the oil smoke continues to rise and diffuse to the outside of the range hood 100. When the second oil screen 22 is exposed outside the body 12, the second smoke suction holes of the honeycomb-shaped oil screen structure are distributed densely, so that the externally expanded oil smoke can be gathered, the escape of the oil smoke on the upper part is reduced, and the smoking effect is improved.

The positions of the first oil net 20 and the second oil net 22 are relatively fixed, that is, no matter where the lifting assembly 14 is located, the relative position between the first oil net 20 and the second oil net 22 is unchanged, so that the problem that oil smoke is accumulated in sliding parts and is difficult to clean due to mutual sliding between different oil nets can be avoided.

In some embodiments, the overall length of baffle 18 is constant and the angle of inclination of baffle 18 relative to body 12 varies with any position of lift assembly 14 relative to body 12. In this way, the structure of the baffle 18 can be simplified.

In particular, no matter where the lifting assembly 14 is located relative to the body 12, the overall length of the deflector 18 is unchanged, and the adjustment of the size of the smoking area is not required to be realized through the sliding connection between the two oil nets, so that the sliding connection structure between the two oil nets is not required, the structure of the deflector 18 is simplified, and the problem that the deflector 18 is difficult to clean due to the accumulation of oil smoke in the sliding connection structure can be avoided.

Under the condition that lifting unit 14 is located the optional position for body 12, the whole length of guide plate 18 is unchangeable, and the inclination of guide plate 18 for body 12 is different, that is to say, through the adjustment to the inclination of whole guide plate 18 for body 12 for guide plate 18 can be adapted to the different lift stroke of lifting unit 14, and the inclination of first oil net 20 and second oil net 22 changes in step in addition, improves the negative pressure distribution, promotes the smoking effect.

In some embodiments, the range hood 100 comprises a driving assembly 32 and a connecting assembly 34, the driving assembly 32 is connected with the lifting assembly 14 through the connecting assembly 34, the lifting assembly 14 comprises a bottom plate 52, the connecting assembly 34 comprises a cross beam 56, the bottom plate 52 and the cross beam 56 extend along the length direction of the range hood 100, the length of the cross beam 56 is the same as that of the bottom plate 52, and the cross beam 56 is connected with the bottom plate 52. Therefore, the lifting synchronization of the two sides of the lifting component 14 can be realized, the inclination and the blocking are prevented, and the balanced lifting is realized.

Specifically, the inner side of the bottom of the air deflector 18 can be rotatably connected with a cross beam 56, referring to fig. 3, the inner side of the bottom of the air deflector 18 is provided with a first reinforcing plate 55, the outer side of the cross beam 56 is provided with a second reinforcing plate 57, and the first reinforcing plate 55 and the second reinforcing plate 57 can be connected through a rotating shaft. In this embodiment, because lampblack absorber 100 length is longer, about 1.2m, crossbeam 56 length is the same with bottom plate 52 length, crossbeam 56 can be run-through crossbeam 56, and crossbeam 56 connects bottom plate 52 for when drive assembly 32 passes through coupling assembling 34 drive lifting unit 14 and goes up and down, crossbeam 56 can drive bottom plate 52 and go up and down in step integrally, and then realizes that lifting unit 14 both sides (like the left and right sides) go up and down in step, prevents that the slope from blocking, realizes balanced lift.

The drive assembly 32 may be located within the frame assembly 64 and may be located below the fan assembly 16, and a portion of the connection assembly 34 may be located within the frame assembly 64 and a portion may extend out of the frame assembly 64 and connect with the lift assembly 14.

In some embodiments, the connecting assembly 34 includes a first fixing member 84, a connecting member 86, and a second fixing member 88, the driving assembly 32 is fixed to the first fixing member 84, the second fixing member 88 and the connecting member 86 are fixed to the cross beam 56, the driving assembly 32 includes a sliding block 90, the sliding block 90 is connected to the connecting member 86, the first fixing member 84 and the second fixing member 88 are slidable relative to each other, and the first fixing member 84 is formed with a channel 98 for limiting the sliding movement of the second fixing member 88. In this manner, the lifting assembly 14 may be lifted more smoothly.

Specifically, referring to fig. 14, the driving assembly 32 may include a motor 92, and the motor 92 may be a push rod motor. When the motor 92 is started, the slider 90 can be driven to move up and down to drive the connecting member 86 to ascend and descend, and the connecting member 86 drives the second fixing member 88 and the ascending and descending assembly 14 to ascend and descend. It is understood that in other embodiments, the motor 92 may be other types of motors and is not limited to a push rod motor. For example, the drive assembly 32 may include a gear set or lead screw by which the rotational motion of the motor drive shaft is converted into an up and down movement of the slide 90.

In the embodiment shown in fig. 16, the second fixing member 88 includes two, and the connecting member 86 is located between the two second fixing members 88. The first fastener 84 may be fixedly attached inside the frame assembly 64.

In some embodiments, the second fastening member 88 includes two, the first fastening member 84 includes a plate body 94 and two side wings 96, the two side wings 96 are respectively disposed on two sides of the plate body 94, the two side wings 96 are respectively disposed on the outer sides of the two second fastening members 88, and a channel 98 is formed between the two side wings 96. In this manner, the first fixture 84 may be formed with a channel 98.

Specifically, referring to fig. 15 and 16, each wing 96 is positioned outboard of a corresponding one of the second securing members 88. The channel 98 formed between the two lateral wings 96 can limit the sliding of the second fixing member 88, thereby ensuring the stable lifting of the lifting assembly 14.

In some embodiments, the first fixture 84 and the second fixture 88 are connected by a slide assembly 97. Therefore, the lifting smoothness of the lifting component 14 can be improved, and the clamping is avoided.

Specifically, the slide rail assembly 97 may include a first slide rail 95 and a second slide rail 93, and the first slide rail 95 and the second slide rail 93 may be connected by a ball (not shown). A first slide 95 is mounted on the outside of a second fixed member 88 and a second slide 93 is mounted on the inside of a wing 96. A second fixed member 88 and a lateral wing 96 are slidably connected through a first slide rail 95 and a second slide rail 93, so that the lifting assembly 14 can be lifted more smoothly, and the lifting assembly 14 is prevented from being locked.

In the description herein, references to the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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

Claims (10)

1. A range hood, comprising:

the fan assembly comprises a body, wherein a fan assembly is arranged in the body;

lifting unit, swing joint the body, lifting unit is including rotating two guide plates of connection, form an contained angle between two guide plates, every the guide plate is equipped with the smoking mouth, every guide plate swing joint the body lifting unit for under the body condition of descending to different positions, contained angle between two guide plates diminishes, connects distance between two guide plate positions of body diminishes.

2. The range hood according to claim 1, wherein the body comprises a sliding part and two opposite side plates, the side plates are provided with sliding grooves, the sliding part is rotatably connected with the guide plate, the sliding part is at least partially located in the sliding grooves, and the sliding part is configured to slide in the sliding grooves to adjust the inclination angle of the guide plate relative to the body and adjust the position of the guide plate part connected with the body in the position change process of the lifting assembly.

3. A range hood as claimed in claim 2, wherein the sliding member includes a sliding sleeve, the sliding sleeve penetrates the sliding groove, the body further includes a fixing shaft, and the fixing shaft penetrates the sliding sleeve and is connected with the guide plate.

4. A range hood as claimed in claim 2, wherein the body further comprises a support plate, the sliding slot comprises a first slot wall and a second slot wall which are opposite, the first slot wall is provided with a notch, the support plate penetrates through the notch or the sliding slot, the support plate is opposite to the second slot wall, and the sliding member is configured to slide in a space between the support plate and the second slot wall.

5. A range hood as claimed in claim 1, wherein each of the guide plates is provided with a first oil net and a second oil net which are relatively fixed in position, the lifting assembly can be switched between a first position and a second position relative to the body, the first oil net is exposed outside the body and the second oil net is hidden inside the body when the lifting assembly is at the first position, the first oil net and the second oil net are exposed outside the body when the lifting assembly is at the second position, and the first oil net and the second oil net are both formed with the smoke suction port.

6. A range hood as claimed in any of claims 1 to 5, wherein the overall length of the deflector is unchanged and the angle of inclination of the deflector relative to the body is different in the case where the lifting assembly is located at any position relative to the body.

7. A range hood as claimed in claim 1, wherein the range hood comprises a driving assembly and a connecting assembly, the driving assembly is connected with the lifting assembly through the connecting assembly, the lifting assembly comprises a bottom plate, the connecting assembly comprises a cross beam, the bottom plate and the cross beam extend along the length direction of the range hood, the length of the cross beam is the same as that of the bottom plate, and the cross beam is connected with the bottom plate.

8. A range hood as claimed in claim 7, wherein the connecting assembly comprises a first fixing member, a connecting member and a second fixing member, the driving assembly is fixed to the first fixing member, the second fixing member and the connecting member are fixed to the cross beam, the driving assembly comprises a sliding block, the sliding block is connected with the connecting member, the first fixing member and the second fixing member can slide relatively, and a channel for limiting the sliding of the second fixing member is formed in the first fixing member.

9. The range hood of claim 8, wherein the first fixing member is connected with the second fixing member by a sliding rail assembly.

10. A range hood as claimed in claim 8, wherein the number of the second fixing members is two, the first fixing member includes a plate body and two side wings, the two side wings are respectively arranged at two sides of the plate body, the two side wings are respectively arranged at outer sides of the two second fixing members, and the channel is formed between the two side wings.

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