Range hood capable of gathering smoke in lifting manner

Abstract

A range hood capable of gathering smoke in a lifting mode comprises a draught fan box body and a smoke collecting hood, a draught fan is arranged in the draught fan box body, the smoke collecting hood is arranged on the outer side of the draught fan box body in a lifting mode, an air inlet is formed in the smoke collecting hood, a turnover opening and closing panel is arranged below the air inlet, and the opening and closing panel is used for opening and closing the air inlet; the telescopic smoke gathering plate is arranged in the smoke collecting hood, the smoke gathering plate and the opening and closing panel are distributed around the peripheral side of the air inlet, the smoke gathering channel is formed between the smoke gathering plate in the stretching-out state and the opening and closing panel, the telescopic smoke gathering plate secondarily shortens the oil smoke rising path, the oil smoke is guided to flow into the air inlet through the formed smoke gathering channel, oil smoke is prevented from overflowing, and the smoke collecting effect is improved. Meanwhile, the smoke gathering channels are distributed around the periphery of the air inlet, the air inlet is wrapped by the smoke gathering channels, oil smoke is intercepted from different directions to overflow, the smoke gathering effect is improved, the opening and closing panel and the smoke gathering plate are exposed out of the air inlet and are close to an oil smoke source, in this way, the opening and closing panel and the smoke gathering plate can intercept splashed oil drops, and pollution of the oil smoke to the use environment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of range hoods, and in particular to a range hood capable of lifting and collecting smoke. Background Art

[0002] As range hoods become increasingly popular, people are paying more and more attention to their fume extraction performance. If the range hood's air inlet is far from the fume-generating area, the fume's inhalation path becomes longer, increasing the duration of inhalation and making it more likely for fume to escape during cooking. Lowering the range hood's installation height, placing the air inlet as close to the fume source as possible, results in a smaller cooking space, making it easier for the cook's head to accidentally hit the fume hood. Furthermore, lowering the installation height also affects vision.

[0003] A patent document in China with application number 202320060282.9 and publication date 2023.6.20 discloses a lifting range hood, including a fan frame and a range fume fan, a decorative cover is installed on the outside of the fan frame, a smoke collection hood is installed at the bottom of the decorative hood, and an air inlet is opened in the center of the smoke collection hood, a driving mechanism for driving the decorative cover to move up and down relative to the fan frame is installed on the fan frame, and a first smoke guide plate and a second smoke guide plate are provided on the inner side of the decorative cover. When the decorative cover and the smoke collection hood are raised, the first smoke guide plate and the second smoke guide plate cover the air inlet, and when the decorative cover and the smoke collection hood are lowered, the first smoke guide plate and the second smoke guide plate open the air inlet.

[0004] The folded edge of the range hood is arranged inside the air inlet, and it cannot guide the oil smoke that does not flow into the air inlet, which will cause the oil smoke to overflow during the flow toward the air inlet; at the same time, it cannot intercept the splashing oil droplets. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a range hood with a lifting and smoke-collecting function, a retractable smoke-collecting plate, which shortens the rising path of the oil smoke for a second time, and guides the oil smoke into the air inlet by forming a smoke-collecting channel to prevent the oil smoke from overflowing. At the same time, the smoke-collecting channel is distributed around the circumference of the air inlet, and the smoke-collecting channel wraps the air inlet to intercept the oil smoke overflow from different directions, thereby improving the smoke-collecting effect, and further improving the oil smoke suction and exhaust effect. The opening and closing panel and the smoke-collecting plate are exposed to the air inlet and close to the oil smoke source, so that the opening and closing panel and the smoke-collecting plate can intercept the splashing oil droplets and reduce the pollution of the oil smoke to the use environment.

[0006] In order to solve the above technical problems, the technical solution used in the present invention is:

[0007] The present invention relates to a range hood with a lifting and smoke-collecting function, comprising a fan housing and a smoke collecting hood, wherein a fan is provided in the fan housing, and the smoke collecting hood can be lifted and lowered outside the fan housing, the smoke collecting hood is provided with an air inlet, and a flip-up opening and closing panel is provided below the air inlet, and the opening and closing panel is used to open and close the air inlet; a retractable smoke collecting plate is provided inside the smoke collecting hood, and the smoke collecting plate and the opening and closing panel are distributed around the air inlet, and the smoke collecting plate in the extended state and the opening and closing panel form a smoke collecting channel.

[0008] Preferably, the smoke collecting hood is provided with an interlayer, which is located on both sides of the air inlet, and a swing device is provided in the interlayer; the rotating shaft of the opening and closing panel is embedded in the interlayer and connected to the swing device.

[0009] Preferably, the smoke hood includes a bottom plate, an outer plate, an inner plate and an inner enclosure plate; the inner enclosure plate is arranged on the bottom plate, the inner plate is located on the outside of the inner enclosure plate and is arranged at the end of the bottom plate, the outer plate is arranged on the outside of the inner plate, and the inner plate extends toward the outer plate with an inner bottom plate; the interlayer is located between the inner enclosure plate and the outer plate; the air inlet is arranged on the bottom plate and is staggered with the interlayer.

[0010] Preferably, the swinging device includes a swinging motor and a swinging drive assembly, and the swinging drive assembly connects the swinging motor and the rotating shaft of the opening and closing panel; the swinging drive assembly and the rotating shaft of the opening and closing panel are accommodated between the inner panel and the outer panel, and the swinging motor is accommodated between the inner panel and the inner panel.

[0011] Preferably, an avoidance groove is provided between the bottom plate and the inner side plate, and the smoke collecting plate is arranged in the avoidance groove.

[0012] Preferably, a sliding module is provided on the fan casing, a connecting rod assembly connects the smoke hood and the sliding module, and a pushing device is also provided between the connecting rod assembly and the fan casing; the connecting rod assembly includes a connecting cross bar and a connecting pull rod, the connecting cross bar is arranged on one side of the fan casing, the connecting pull rod is arranged at the end of the fan casing and is connected to the connecting cross bar, and the connecting pull rod is arranged upward along the height of the fan casing and tilted from one side of the fan casing to the other side.

[0013] Preferably, a plurality of sliding modules are provided on the peripheral side of the fan housing, and the connecting rod assembly connects the smoke collecting hood and the plurality of sliding modules.

[0014] Preferably, the smoke collecting plate includes a first smoke collecting side plate, a second smoke collecting side plate, and a smoke collecting back plate; the smoke collecting back plate is located between the first smoke collecting side plate and the second smoke collecting side plate, and the opening and closing panel is arranged opposite to the smoke collecting back plate.

[0015] Compared with the prior art, the beneficial effects of the range hood with a lifting and smoke collection function described in the present invention are mainly reflected in:

[0016] A liftable fume hood is provided, which can be moved closer to the oil fume source, shortening the distance between the air inlet and the oil fume source, shortening the oil fume rising path, and improving the oil fume suction and exhaust effect; a retractable smoke collecting plate is provided, which shortens the oil fume rising path a second time, guiding the oil fume into the air inlet by forming a smoke collecting channel to prevent oil fume from overflowing. At the same time, the smoke collecting channel is distributed around the side of the air inlet, wrapping the air inlet, intercepting oil fume from different directions, improving the smoke collecting effect, and further improving the oil fume suction and exhaust effect. The opening and closing panel and the smoke collecting plate are exposed to the air inlet and close to the oil fume source. In this way, the opening and closing panel and the smoke collecting plate can intercept splashing oil droplets and reduce the pollution of oil fume to the use environment.

[0017] By setting up an interlayer, the rotating shafts of the swinging device and the opening and closing panel are accommodated in the interlayer, and the interlayer is used to isolate the rotating shafts of the swinging device and the opening and closing panel from oil smoke, thereby preventing the oil smoke from forming condensed oil droplets on the rotating shafts of the swinging device and the opening and closing panel and interfering with the movement of the opening and closing panel.

[0018] By staggering the interlayer and the air inlet, the contact area between the oil smoke and the outer surface of the interlayer is reduced; at the same time, the upward rising oil smoke is blocked by the bottom plate and the inner bottom plate, preventing the oil smoke from contaminating the swing device and the rotating shaft of the opening and closing panel during the rising process.

[0019] The rotation axis of the opening and closing panel is accommodated between the inner plate and the outer plate, which extends the distance between the air inlet and the rotation axis of the opening and closing panel, further reducing the influence of oil smoke on the rotation axis of the opening and closing panel.

[0020] The smoke hood is slidably connected to the fan box through a connecting rod assembly and a sliding module, and the lifting and lowering of the smoke hood is controlled by a pushing device; a control switch is integrated on the smoke hood, and the control switch is used to control the range hood. The user needs to click the control switch to operate it, thereby generating a force on the smoke hood; the connection is made through an inclined connecting pull rod, and the installation position of the connecting cross bar is lowered, so that the connecting cross bar is set close to the control switch, thereby improving the supporting strength of the smoke hood.

[0021] The present invention is provided with a retractable smoke collecting plate, which shortens the rising path of oil smoke for a second time, and guides the oil smoke into the air inlet by forming a smoke collecting channel to prevent the oil smoke from overflowing. At the same time, the smoke collecting channel is distributed around the circumference of the air inlet, and the smoke collecting channel wraps the air inlet to intercept the oil smoke from different directions, thereby improving the smoke collecting effect, and further improving the oil smoke suction and exhaust effect. The opening and closing panel and the smoke collecting plate are exposed to the air inlet and close to the oil smoke source, so that the opening and closing panel and the smoke collecting plate can intercept flying oil droplets and reduce the pollution of oil smoke to the use environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the accompanying drawings, and the drawings are not drawn to scale with actual size. The emphasis is on illustrating the subject matter of the present invention.

[0023] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0024] Figure 2 This is an exploded view of the fan housing and the smoke collection hood of the present invention.

[0025] Figure 3 This is an exploded view of the connecting rod assembly and the fan housing in the present invention.

[0026] Figure 4 It is a top view of the fan housing of the present invention.

[0027] Figure 5 It is a cross-sectional view taken along line AA in the figure.

[0028] Figure 6 It is an exploded view of the smoke collecting hood of the present invention.

[0029] Figure 7 for Figure 6 Magnified view of B.

[0030] Figure 8 This is a schematic diagram of the swing device driving the opening and closing panel to close the air inlet in the present invention.

[0031] Figure 9 It is a front view of the smoke collecting hood and the opening and closing panel of the present invention.

[0032] Figure 10 for Figure 9 Cross-sectional view of CC.

[0033] Figure 11 It is a three-dimensional schematic diagram of the smoke collecting plate in the present invention.

[0034] Figure 12 This is the transformation state diagram of the range hood.

[0035] Figure 13 Transformation diagram for range hood installed in cabinet.

[0036] Explanation of the accompanying numbers: fan box 1, perforation 11, oil-proof box 12; smoke hood 2, air inlet 20, bottom plate 21, outer plate 22, inner plate 23, inner bottom plate 231, inner panel 24, interlayer 25, front plate 26, rear plate 27, control switch 28, avoidance groove 29; opening and closing panel 3; smoke collecting plate 4, smoke collecting channel 40, first smoke collecting side plate 41, second smoke collecting side plate 42, smoke collecting back plate 43; swing motor 51, swing drive assembly 52, drive rod 53, connecting rod 54, rotating rod 55; sliding module 6; connecting rod assembly 7, connecting cross bar 71, connecting pull rod 72, groove 721, pushing device 73, pushing drive 74, connecting part 75; lifting device 8, lifting motor 81, lifting transmission shaft 82, lifting transmission commutator 83, lifting screw 84, lifting nut 85; cabinet 9. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments given do not limit the present invention. In this embodiment, it should be understood that the directions or positional relationships indicated by terms such as "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention.

[0038] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.

[0039] like Figure 1-13As shown, a range hood with a lifting and smoke-collecting function comprises a fan box 1 and a smoke collecting hood 2. A fan (not shown in the figure) is provided in the fan box 1, and the smoke collecting hood 2 can be lifted and arranged on the outside of the fan box 1. The smoke collecting hood 2 is provided with an air inlet 20, and a reversible opening and closing panel 3 is provided below the air inlet 20. The opening and closing panel 3 is used to open and close the air inlet 20; a retractable smoke collecting plate 4 is provided inside the smoke collecting hood 2, and the smoke collecting plate 4 and the opening and closing panel 3 are distributed around the air inlet 20. The smoke collecting plate 4 in the extended state and the opening and closing panel 3 form a smoke collecting channel 40. A liftable smoke hood 2 is provided, which can be moved closer to the oil smoke source, shortening the distance between the air inlet 20 and the oil smoke source, shortening the oil smoke rising path, and improving the oil smoke suction and exhaust effect; a retractable smoke collecting plate 4 is provided, which shortens the oil smoke rising path again, and guides the oil smoke into the air inlet 20 by forming a smoke collecting channel 40 to prevent oil smoke from overflowing. At the same time, the smoke collecting channel 40 is distributed around the side of the air inlet 20, and the smoke collecting channel 40 wraps the air inlet 20, intercepting oil smoke from different directions, improving the smoke collecting effect, and further improving the oil smoke suction and exhaust effect. The opening and closing panel 3 and the smoke collecting plate 4 are exposed from the air inlet 20 and are close to the oil smoke source. In this way, the opening and closing panel 3 and the smoke collecting plate 4 can intercept splashing oil droplets and reduce the pollution of oil smoke to the use environment.

[0040] The fume hood 2 is provided with an interlayer 25 located on either side of the air inlet 20. A swing mechanism is disposed within the interlayer 25. The pivot axis 31 of the opening and closing panel 3 is embedded within the interlayer and connected to the swing mechanism. The interlayer accommodates the swing mechanism and the pivot axis 31 of the opening and closing panel 3, isolating them from oil smoke. This prevents the formation of condensed oil droplets on the swing mechanism and the pivot axis 31 of the opening and closing panel 3, which could interfere with the movement of the opening and closing panel 3.

[0041] The smoke hood 2 includes a bottom plate 21, an outer plate 22, an inner plate 23 and an inner panel 24; the inner panel 24 is arranged on the bottom plate 21, the inner panel 23 is located on the outer side of the inner panel 24 and is arranged at the end of the bottom plate 21, the outer plate 22 is arranged on the outer side of the inner panel 23, and the inner panel 23 extends toward the outer plate 22 with an inner bottom plate 231; the interlayer 25 is located between the inner panel 24 and the outer plate 22; the air inlet 20 is arranged on the bottom plate 21 and is staggered with the interlayer.

[0042] By staggering the interlayer and the air inlet 20, the contact area between the oil smoke and the outer surface of the interlayer is reduced; at the same time, the upward rising oil smoke is blocked by the bottom plate 21 and the inner bottom plate 231, thereby preventing the oil smoke from contaminating the swing device and the rotating shaft 31 of the opening and closing panel 3 during the rising process.

[0043] The swing mechanism includes a swing motor 51 and a swing drive assembly 52. The swing drive assembly 52 connects the swing motor 51 to the rotation axis 31 of the opening and closing panel 3. The swing drive assembly 52 and the rotation axis 31 of the opening and closing panel 3 are accommodated between the inner panel 23 and the outer panel 22, and the swing motor 51 is accommodated between the inner panel 24 and the inner panel 23. The rotation axis 31 of the opening and closing panel 3 is accommodated between the inner panel 23 and the outer panel 22, extending the distance between the air inlet 20 and the rotation axis 31 of the opening and closing panel 3, further reducing the impact of oil smoke on the rotation axis 31 of the opening and closing panel 3.

[0044] The swing drive assembly 52 includes a drive rod 53, a connecting rod 54 and a rotating rod 55; one end of the drive rod 53 is fixedly connected to the drive shaft of the swing motor 51, the other end of the drive rod 53 is hinged to one end of the connecting rod 54, the other end of the connecting rod 54 is hinged to one end of the rotating rod 55, and the other end of the rotating rod 55 is fixedly connected to the rotating shaft 31 of the opening and closing panel 3. Figure 7 As shown, at this time, the opening and closing panel 3 opens the air inlet 20, and when the swing motor 51 drives the driving rod 53 to rotate clockwise, the driving rod 53 drives the rotating rod 55 to rotate counterclockwise through the connecting rod 54, thereby driving the opening and closing panel 3 to close the air inlet 20; Figure 8 As shown, at this time, the opening and closing panel 3 closes the air inlet 20. When the swing motor 51 drives the driving rod 53 to rotate counterclockwise, the driving rod 53 drives the connecting rod 54 to rotate clockwise, thereby driving the opening and closing panel 3 to open the air inlet 20.

[0045] A sliding module 6 is provided on the fan housing 1, a connecting rod assembly 7 connects the smoke hood 2 and the sliding module 6, and a pushing device 73 is also provided between the connecting rod assembly 7 and the fan housing 1; the connecting rod assembly 7 includes a connecting crossbar 71 and a connecting pull rod 72, the connecting crossbar 71 is provided on one side of the fan housing 1, the connecting pull rod 72 is provided at the end of the fan housing 1 and connected to the connecting crossbar 71, and the connecting pull rod 72 is provided upward along the height of the fan housing 1 and tilted from one side of the fan housing 1 to the other side. In this embodiment, the pushing device 73 includes a pushing drive 74 and a connecting member 75, a through hole 11 is provided on the fan housing 1, and the connecting member 75 is inserted into the through hole 11; the fixed end of the pushing drive 74 is provided on the fan housing 1, and the movable end of the pushing drive 74 is connected to the connecting rod assembly 7 via the connecting member 75; the sliding module 6 is a linear guide. Preferably, an oil-proof box 12 is provided on the outer cover of the pushing device 73, and the oil-proof box 12 is fixed to the inner side of the fan housing 1.

[0046] The smoke hood 2 also includes a front panel 25 and a rear panel 26. The front panel 25 is located on one side of the smoke hood 2 and fixed to the outer panel 22. The rear panel 26 is located on the other side of the smoke hood 2 and fixed to the outer panel 22. A control switch 28 is provided on the front panel 25 for controlling the range hood. The smoke hood 2 is slidably connected to the fan housing 1 by a connecting rod assembly 7 and a sliding module 6. The lifting and lowering of the smoke hood 2 is controlled by a pushing device 73. When operating the range hood, the user clicks the control switch 28 to operate, thereby generating a force on the smoke hood 2. The connection is made by an inclined connecting rod 72, which lowers the installation position of the connecting cross bar 71, thereby placing the connecting cross bar 71 closer to the control switch 28, thereby increasing the support strength of the smoke hood 2.

[0047] Preferably, a plurality of sliding modules 6 are provided on the circumference of the fan housing 1, and a connecting rod assembly 7 connects the smoke hood 2 and the plurality of sliding modules 6. The connecting rod assembly 7 connects the plurality of sliding modules 6, so that the smoke hood 2 moves synchronously with the plurality of sliding modules 6, thereby improving the smoothness of the smoke hood 2 when it is raised and lowered and the overall strength.

[0048] The smoke hood 2 is provided with a lifting device 8 and a sliding module 6, and the smoke collecting plate 4 is connected to the smoke hood 2 via the lifting device 8 and the sliding module 6. The lifting device 8 includes a lifting motor 81, a lifting transmission shaft 82, a lifting transmission reversing device 83, a lifting screw 84, and a lifting nut 85. The lifting motor 81 is fixed to the rear plate 26 of the smoke hood 2, and the lifting transmission shaft 82 is placed on the connecting crossbar 71. The lifting transmission shaft 82 connects the lifting motor 81 and the lifting transmission reversing device 83; the lifting screw 84 is disposed in the lifting transmission reversing device 83 and is fixed to the bottom plate 21 of the smoke hood 2; the lifting nut 85 is mounted on the lifting screw 84 and connected to the smoke collecting plate 4 via the sliding module 6. When the smoke hood 2 is raised or lowered, the lifting motor 81 moves along with the bottom plate 21 of the rear plate 27, the lifting transmission shaft 82 and the lifting transmission reversing device 83 move along with the lifting transmission shaft 82 along with the bottom plate 21, and the lifting screw 84 moves up and down along with the bottom plate 21.

[0049] The lifting motor 81 drives the lifting transmission shaft 82 to rotate, and the lifting transmission commutator 83 converts the lateral rotational force of the lifting transmission shaft 82 into a longitudinal rotational force and drives the lifting screw 84 to rotate; the rotating lifting screw 84 drives the lifting nut 85 to move up and down, thereby driving the smoke collecting plate 4 to extend and retract relative to the smoke collecting hood 2.

[0050] Preferably, a sliding module 6 is provided on both sides of the front plate 25, and a sliding module 6 is provided on both sides of the rear plate 26. A connecting longitudinal rod 86 is provided between the sliding module 6 of the front plate 25 and the sliding module 6 of the rear plate 26. The connecting longitudinal rod 86 is fixedly connected to the cigarette collecting plate 4, and the lifting nut 85 is fixedly connected to the connecting longitudinal rod 86. The sliding module 6 is a linear guide. This allows the cigarette collecting plate 4 to move synchronously on the front plate 25 and the rear plate 26, improving stability.

[0051] Preferably, a groove 721 is provided at the end of the connecting rod 72 away from the connecting cross bar 71, and the lifting transmission shaft 82 is placed in the groove 721. The lifting transmission shaft 82 is supported by the connecting rod 72. The groove 721 is an arc-shaped groove, and the groove 721 has a good fit with the lifting transmission shaft 82, preventing the lifting transmission shaft 82 from falling off the connecting rod 72 while not interfering with the rotation of the lifting transmission shaft 82.

[0052] An escape groove 29 is provided between the bottom plate 21 and the inner side plate 23, and the smoke collecting plate 4 is arranged in the escape groove 29. The smoke collecting plate 4 includes a first smoke collecting side plate 41, a second smoke collecting side plate 42, and a smoke collecting back plate 43; the smoke collecting back plate 43 is located between the first smoke collecting side plate 41 and the second smoke collecting side plate 42, and the opening and closing panel 3 is arranged opposite to the smoke collecting back plate 43. Figure 1 、 Figure 6 as well as Figure 11 As shown, the first smoke-collecting side panel 41 is arranged close to one outer panel 22, the second smoke-collecting side panel 42 is arranged close to the other outer panel 22, and the smoke-collecting side panel 41 is arranged close to the rear panel 27; the smoke-collecting panel 4 avoids the area below the front panel, so that the smoke-collecting panel 4 will not block the user's line of sight when it moves.

[0053] The range hood switches its operating state by operating the switch. When the range hood enters the ventilation mode, the opening and closing panel 3 at the bottom of the smoke hood 2 swings outward, opening the air inlet 20. At the same time, the fan starts and runs at a low gear to refresh the kitchen air. When the range hood enters the smoking mode, the pushing device 73 drives the smoke hood 2 downward relative to the fan housing 1, bringing the air inlet 20 closer to the oil smoke source and shortening the oil smoke rising path. As the amount of oil smoke continues to increase, the lifting device 8 drives the smoke collecting plate 4 downward from the smoke collecting hood 2. The smoke collecting plate 4 extends outward to form a smoke collecting channel 40 with the opening and closing panel 3 to prevent oil smoke from overflowing.

[0054] In a preferred embodiment, referring to Figure 11 As shown, the range hood is installed on a cabinet 9. When the range hood enters the smoking mode, the smoke collecting hood 2 moves downward relative to the cabinet 9, shortening the distance between the air inlet 20 and the oil smoke source; as the amount of oil smoke continues to increase, the smoke collecting plate 4 moves downward relative to the cabinet 9, extending outward to form a smoke collecting channel 40 with the opening and closing panel 3 to prevent oil smoke from overflowing.

[0055] In this specification, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0057] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A range hood with a liftable smoke collection function, comprising a fan housing and a smoke collection hood, wherein the fan housing is provided with a fan, the smoke collection hood is liftably disposed outside the fan housing, and the smoke collection hood is provided with an air inlet, characterized in that: A flip opening and closing panel is provided below the air inlet, which is used to open and close the air inlet; a retractable smoke collecting plate is provided inside the smoke collecting hood, and the smoke collecting plate and the opening and closing panel are distributed around the air inlet, and the extended smoke collecting plate and the opening and closing panel form a smoke collecting channel.

2. The range hood with a lifting and smoke-collecting function according to claim 1, characterized in that: The smoke collecting hood is provided with an interlayer located on both sides of the air inlet, and a swing device is provided in the interlayer; the rotating shaft of the opening and closing panel is embedded in the interlayer and connected to the swing device.

3. The range hood with a lifting and smoke-collecting function according to claim 2, characterized in that: The smoke hood includes a bottom plate, an outer plate, an inner plate and an inner panel; the inner panel is arranged on the bottom plate, the inner panel is located on the outside of the inner panel and is arranged at the end of the bottom plate, the outer panel is arranged on the outside of the inner panel, and the inner panel extends toward the outer panel with an inner bottom plate; the interlayer is located between the inner panel and the outer panel; the air inlet is arranged on the bottom plate and is staggered with the interlayer.

4. The range hood with a lifting and smoke-collecting function according to claim 3, characterized in that: The swing device includes a swing motor and a swing drive assembly, which connects the swing motor and the rotating shaft of the opening and closing panel; the swing drive assembly and the rotating shaft of the opening and closing panel are accommodated between the inner panel and the outer panel, and the swing motor is accommodated between the inner panel and the inner panel.

5. The range hood with a lifting and smoke-collecting function according to claim 3, characterized in that: An avoidance groove is provided between the bottom plate and the inner side plate, and the smoke collecting plate is arranged in the avoidance groove.

6. The range hood with a lifting and smoke collecting function according to claim 1, characterized in that: A sliding module is provided on the fan case, a connecting rod assembly connects the smoke hood and the sliding module, and a pushing device is also provided between the connecting rod assembly and the fan case; the connecting rod assembly includes a connecting cross bar and a connecting pull rod, the connecting cross bar is arranged on one side of the fan case, the connecting pull rod is arranged at the end of the fan case and connected to the connecting cross bar, and the connecting pull rod is arranged upward along the height of the fan case and inclined from one side of the fan case to the other side.

7. The range hood with a lifting and smoke-collecting function according to claim 6, characterized in that: A plurality of sliding modules are arranged on the peripheral side of the fan box body, and a connecting rod assembly connects the smoke collecting hood and the plurality of sliding modules.

8. The range hood with a lifting and smoke-collecting function according to claim 1, characterized in that: The smoke collecting plate comprises a first smoke collecting side plate, a second smoke collecting side plate and a smoke collecting back plate; the smoke collecting back plate is located between the first smoke collecting side plate and the second smoke collecting side plate, and the opening and closing panel is arranged opposite to the smoke collecting back plate.

Images