Range hood

Abstract

The invention relates to a range hood. The range hood comprises a range hood frame and a plurality of sets of smoke collecting assemblies sequentially arranged on the range hood frame. The smoke collecting assembly comprises a smoke gathering cover, a first rack and a driving part; the driving part is arranged on the smoke rack, the first rack is connected with the smoke gathering cover, the first rack is connected with the driving part, and the driving part is used for driving the first rack to move in the first direction or the second direction so as to drive the smoke gathering cover to move. The range hood can reduce energy waste.

Description

Technical Field

[0001] The invention relates to the field of range hoods, and in particular to a range hood. Background Art

[0002] Range hoods have become one of the essential appliances in modern family kitchens. As the application rate of range hoods increases, people pay more and more attention to the range hood's fume extraction effect and installation aesthetics. At present, for the sake of aesthetics, the range hood's fume outlet is fixed, and the range hood is raised and lowered as a whole. However, in some scenarios, a large fume extraction area may not be needed, which will cause energy waste. Summary of the invention

[0003] In view of this, the present invention provides a range hood which can reduce energy waste.

[0004] The present invention provides the following technical solution: a range hood, comprising: a range hood frame, and a plurality of smoke collecting components sequentially arranged on the range hood frame;

[0005] The smoke collecting assembly comprises: a smoke collecting hood, a first rack, and a driving member;

[0006] The driving member is arranged on the smoke collecting frame, the first rack is connected to the smoke collecting hood, the first rack is connected to the driving member, and the driving member is used to drive the first rack to move along the first direction or the second direction to drive the smoke collecting hood to move.

[0007] Furthermore, the smoke collecting assembly further comprises: a smoke collecting member and a second rack;

[0008] The smoke collecting member is movably arranged on the smoke collecting hood, the second rack is connected to the smoke collecting member, the second rack cooperates with the driving member, and the second rack is used to drive the smoke collecting member to open or close.

[0009] Furthermore, the smoke hood comprises: a first baffle, a second baffle, a third baffle, a fourth baffle and a bottom plate;

[0010] The first baffle, the second baffle, the third baffle, and the fourth baffle are connected end to end around the periphery of the bottom plate, wherein the length of the second baffle and the length of the fourth baffle are both smaller than the first baffle or the third baffle;

[0011] The first baffle plate, the third baffle plate and the second baffle plate are enclosed to form an installation opening, and the smoke collecting component is movably arranged in the installation opening.

[0012] Further, it also includes: a hinge;

[0013] The first baffle plate and the third baffle plate are both provided with hinges, and the smoke collecting member is movably arranged in the installation opening through the hinges.

[0014] Further, it also includes: a protective member;

[0015] The protective member is arranged on the smoke extractor frame, and a accommodating cavity is arranged inside the protective member, and the first rack and the second rack are both located in the accommodating cavity; the protective member is respectively provided with a first mounting portion and a second mounting portion on both sides of the accommodating cavity, and the first mounting portion and the second mounting portion are arranged on a side of the protective member away from the smoke extractor frame.

[0016] Furthermore, the smoke collecting assembly further comprises: a first guide rail mechanism and a second guide rail mechanism;

[0017] The first guide rail mechanism includes a first slide rail and a first slider, and the second guide rail mechanism includes a second slide rail and a second slider; the first slider is arranged on the first mounting portion, and the second slider is arranged on the second mounting portion, the first slide rail is connected to the first rack, and the second slide rail is connected to the second rack; a first limiting member is arranged at one end of the first slide rail away from the smoke collecting member, and a second limiting member is arranged at one end of the second slide rail away from the smoke collecting member, and the height of the first limiting member is higher than the height of the second limiting member.

[0018] Furthermore, the smoke collecting member comprises: a first guide plate, a second guide plate, a third guide plate and a fourth guide plate;

[0019] The first guide plate and the third guide plate are arranged on both sides of the second guide plate, and both sides of the fourth guide plate are respectively connected to the first guide plate and the third guide plate; wherein a flue is formed between the fourth guide plate and the first guide plate, the second guide plate, and the third guide plate.

[0020] Furthermore, the bottom plate is provided with a plurality of air inlet holes at intervals;

[0021] When the smoke collecting element is in a closed state, the fourth guide plate and the bottom plate form a first angle a, and when the smoke collecting element is in an open state, the fourth guide plate and the bottom plate form a second angle b.

[0022] Furthermore, the second rack includes a driving portion and a guiding portion; the guiding portion and the driving portion have a third angle c, and the guiding portion has a groove.

[0023] Further, it also includes: a guide member;

[0024] One end of the guide member is provided with a protrusion, and the protrusion is movably arranged in the groove, and the other end of the guide member is connected to the smoke collecting member.

[0025] The above-mentioned range hood is provided with multiple smoke collecting components on the hood frame. When there is oil smoke in some areas, the smoke collecting components in the corresponding areas are lifted and lowered on the hood frame to realize the lifting and lowering of the range hood. Specifically, the first rack is fixedly connected to the smoke hood, and a driving member is provided on the hood frame, and the driving member is connected to the first rack. When oil smoke is generated in the area corresponding to the smoke collecting component, the first rack is driven by the driving member to move in the first direction or the second direction; when the first rack moves in the first direction or the second direction, it drives the smoke hood to move in the first direction or the second direction. In this way, the smoke hood can be lifted and lowered on the hood frame, and the smoke hood is brought close to the stove. In this way, the range hood can realize zoning control and reduce energy loss. The lifting range hood can also reduce the space occupied by the range hood in the kitchen and improve the space utilization rate of the kitchen. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 One of the cross-sectional views of the range hood provided by the embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the structure of a smoke collecting hood provided in an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of a partial structure of a range hood provided by an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the structure of a protective element provided by an embodiment of the present invention;

[0031] Figure 5 One of the partial structural schematic diagrams of the smoke collecting assembly provided in an embodiment of the present invention;

[0032] Figure 6 A second schematic diagram of a partial structure of a smoke collecting assembly provided in an embodiment of the present invention;

[0033] Figure 7 for Figure 6 The enlarged view of point A in the middle;

[0034] Figure 8 A schematic diagram of the structure of a smoke collecting member provided in an embodiment of the present invention;

[0035] Fig. 9 A schematic diagram of the structure of a second rack provided by an embodiment of the present invention;

[0036] Fig.10 The second structural diagram of the range hood provided by the embodiment of the present invention

[0037] Fig.11 A third structural schematic diagram of a range hood provided by an embodiment of the present invention;

[0038] Fig.12 This is a schematic diagram of the overall structure of a range hood provided in an embodiment of the present invention.

[0039] Description of reference numerals:

[0040] 100-range hood; 10-hood frame; 20-smoke collecting assembly; 21-smoke collecting hood; 211-first baffle; 212-second baffle; 213-third baffle; 214-fourth baffle; 215-bottom plate; 216-air inlet; 22-first rack; 23-driving member; 24-smoke collecting member; 241-first guide plate; 242-second guide plate; 243-third guide plate; 244-fourth guide plate; 25-second rack; 251-driving part; 252-guiding part; 253-groove; 26-mounting opening; 30-hinge; 40-protective member; 41-first mounting part; 42-second mounting part; 43-accommodating cavity; 50-first guide rail mechanism; 51-first slide rail; 52-first slider; 53-first limiting member; 60-second guide rail mechanism; 61-second slide rail; 62-second slider; 63-second limiting member; 70-guide member; 71-bump. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0043] References to "embodiments" or "implementations" herein mean that a particular feature, structure, or characteristic described in conjunction with the embodiments or implementations may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0044] Range hoods have become one of the essential appliances in modern family kitchens. As the application rate of range hoods increases, people pay more and more attention to the range hood's fume extraction effect and installation aesthetics. At present, for the sake of aesthetics, the range hood's fume outlet is fixed, and the range hood is raised and lowered as a whole. However, in some scenarios, a large fume extraction area may not be needed, which will cause energy waste.

[0045] To facilitate the subsequent explanation, Figure 1 The perspectives shown in the figure define a first direction, a second direction, a third direction, and a fourth direction, wherein the first direction is as follows Figure 1 The X direction shown is Figure 1 The second direction is as follows: Figure 1 The Y direction shown in , that is Figure 1 The third direction is as follows Figure 1 The A direction shown in Figure 1 Left to right direction as shown in .

[0046] In view of this, the present embodiment provides a range hood 100. The range hood 100 can reduce energy waste.

[0047] See also Figure 1 , a range hood 100, comprising: a range hood frame 10, a plurality of smoke collecting components 20 sequentially arranged on the range hood frame 10;

[0048] The smoke collecting assembly 20 includes: a smoke collecting cover 21, a first rack 22, and a driving member 23;

[0049] The driving member 23 is arranged on the smoke machine frame 10, the first rack 22 is connected to the smoke collecting hood 21, and the first rack 22 is connected to the driving member 23. The driving member 23 is used to drive the first rack 22 to move along the first direction or the second direction to drive the smoke collecting hood 21 to move.

[0050] The range hood 100 is provided with a plurality of smoke collecting assemblies 20 on the hood frame 10. When there is oil smoke in some areas, the smoke collecting assemblies 20 in the corresponding areas are lifted up and down on the hood frame 10 to realize the lifting and lowering of the range hood 100. Specifically, the first rack 22 is fixedly connected to the smoke hood 21, and a driving member 23 is provided on the hood frame 10, and the driving member 23 is connected to the first rack 22. When oil smoke is generated in the area corresponding to the smoke collecting assembly 20, the first rack 22 is driven by the driving member 23 to move in the first direction or the second direction; when the first rack 22 moves in the first direction or the second direction, it drives the smoke hood 21 to move in the first direction or the second direction, so that the lifting and lowering of the smoke hood 21 on the hood frame 10 can be realized, so that the smoke hood 21 can be lowered and close to the stove. In this way, the range hood 100 can realize zoning control, the smoke collection and exhaust effect is better, and the energy loss can be reduced. The lifting range hood 100 can also reduce the space occupied by the range hood 100 in the kitchen, thereby improving the space utilization rate of the kitchen.

[0051] It can be understood that a plurality of smoke collecting assemblies 20 are arranged on the smoke machine frame 10, and the smoke collecting assemblies 20 include a smoke collecting hood 21, a first rack 22 and a driving member 23, wherein the smoke collecting hood 21 is sleeved on the smoke machine frame 10, and the smoke machine frame 10 can be fixedly set in a set installation position. For example, the smoke machine frame 10 can be fixedly connected to the wall, and the driving member 23 is fixedly set on the smoke machine frame 10, the first rack 22 is fixedly connected to the smoke collecting hood 21, and the driving member 23 is connected to the first rack 22. The driving member 23 can drive the first rack 22 to move in the first direction or the second direction; specifically, when the driving member 23 drives the first rack 22 to move in the first direction, the first rack 22 drives the smoke collecting hood 21 to move in the first direction, and when the driving member 23 drives the first rack 22 to move in the second direction, the first rack 22 drives the smoke collecting hood 21 to move in the second direction.

[0052] In this embodiment, two smoke collecting assemblies 20 are provided on the smoke machine frame 10, and the two smoke collecting assemblies 20 are respectively provided on the left or right side of the smoke machine frame 10, and correspondingly, cooking positions (burners) are provided on the left and right sides of the stove, that is, the two smoke collecting assemblies 20 are respectively located above the two burners of the stove. The usage scenario in this embodiment is: one of the cooking positions on the stove is cooking, for example, the left side. At this time, the smoke collecting hood 21 on the left side of the smoke machine frame 10 is driven by the driving member 23 and the first rack 22 to move along the first direction, so that the smoke collecting hood 21 is lowered to extract the oil smoke generated by the cooking position on the left side of the stove during cooking. In this way, the smoke collecting assembly 20 on the right side does not participate in the extraction of oil smoke, and therefore, the driving member 23 on the left side does not participate in the driving work, which can reduce energy waste.

[0053] See also Figure 1 and Fig.12In some embodiments, the smoke collecting assembly 20 further includes: a smoke collecting member 24 and a second rack 25;

[0054] The smoke collecting member 24 is movably disposed on the smoke collecting hood 21 , the second rack 25 is connected to the smoke collecting member 24 , the second rack 25 cooperates with the driving member 23 , and the second rack 25 is used to drive the smoke collecting member 24 to open or close.

[0055] It can be understood that the smoke collecting assembly 20 also includes a smoke collecting piece 24 and a second rack 25, wherein the smoke collecting piece 24 is movably arranged on the smoke hood 21, and the smoke collecting piece 24 can be expanded outward and retracted inward relative to the smoke hood 21, and the second rack 25 is connected to the smoke collecting piece 24. At the same time, the second rack 25 is arranged adjacent to the first rack 22, and the second rack 25 cooperates with the driving piece 23. The second rack 25 can be driven by the driving piece 23 to move in the first direction or the second direction. When the second rack 25 is driven by the driving piece 23 to move in the first direction or the second direction, it drives the smoke collecting piece 24 to open (expand outward to protrude from the side of the smoke hood 21) or close (retract inward to be close to the side of the smoke hood 21).

[0056] Specifically, when the second rack 25 is driven by the driving member 23 to move in the first direction, the smoke collecting member 24 is driven by the second rack 25 to rotate toward the side away from the smoke collecting frame 10, and the smoke collecting member 24 is opened. When the second rack 25 is driven by the driving member 23 to move in the second direction, the smoke collecting member 24 is driven by the second rack 25 to rotate toward the side close to the smoke collecting frame 10, and the smoke collecting member 24 is closed.

[0057] See also Figure 2 In some embodiments, the smoke hood 21 includes: a first baffle 211, a second baffle 212, a third baffle 213, a fourth baffle 214 and a bottom plate 215;

[0058] The first baffle 211, the second baffle 212, the third baffle 213, and the fourth baffle 214 are connected end to end around the periphery of the bottom plate 215, wherein the length of the second baffle 212 and the length of the fourth baffle 214 are both smaller than the first baffle 211 or the third baffle 213;

[0059] The first baffle plate 211 , the third baffle plate 213 , and the second baffle plate 212 together form an installation opening 26 , and the smoke collecting member 24 is movably disposed in the installation opening 26 .

[0060] It can be understood that the first baffle 211, the second baffle 212, the third baffle 213, and the fourth baffle 214 are arranged on the periphery of the bottom plate 215 to form a smoke hood 21, wherein the first baffle 211 and the third baffle 213 are arranged opposite to each other and connected to the bottom plate 215, the second baffle 212 and the fourth baffle 214 are arranged opposite to each other, the fourth baffle 214 is connected to the bottom plate 215, the second baffle 212 is not connected to the bottom plate 215, and the lengths of the second baffle 212 and the fourth baffle 214 are smaller than the third baffle 213 or the first baffle 211, so that the second baffle 212, the first baffle 211, and the third baffle 213 enclose a mounting opening 26.

[0061] It can be understood that the smoke collecting member 24 is movably arranged in the mounting port 26, and the mounting port 26 is arranged near the bottom of the first baffle 211 or the third baffle 213. The two sides of the smoke collecting member 24 are movably arranged on the first baffle 211 and the third baffle 213 respectively, so that when the second rack 25 moves along the first direction, the smoke collecting member 24 is driven to move out of the mounting port 26, so that the smoke collecting member 24 is unfolded relative to the smoke hood 21. After the smoke collecting member 24 is unfolded relative to the smoke hood 21, the smoking area of ​​the range hood 100 can be increased, the smoking efficiency of the range hood 100 can be improved, and the occurrence of oil smoke escape can be reduced.

[0062] It can be understood that a flue is provided in the smoke collecting member 24, and the flue is connected with the flue in the hood rack 10. When the fan in the hood rack 10 starts to work, negative pressure is also formed in the smoke collecting member 24 to achieve the purpose of absorbing oil smoke.

[0063] See also Figure 3 , in some embodiments, further comprising a hinge 30;

[0064] The first baffle plate 211 and the third baffle plate 213 are both provided with hinges 30 , and the smoke collecting member 24 is movably provided at the installation opening 26 via the hinges 30 .

[0065] It can be understood that the hinge 30 is used to movably install the smoke collecting component 24 at the installation port 26. Two hinges 30 are provided. The two hinges 30 are respectively arranged on the first baffle 211 and the third baffle 213. The upper ends of both sides of the smoke collecting component 24 are respectively connected to the two hinges 30, so that the smoke collecting component 24 can be rotated at the installation port 26, so that the smoke collecting component 24 can be unfolded relative to the smoke hood 21.

[0066] It can be understood that the first smoke collecting piece 24 is movably connected to the first mounting port 26 via a hinge 30. Specifically, two hinges 30 are respectively arranged on the first guide plate 241 and the third guide plate 243 of the first smoke collecting piece 24, and the hinge 30 is connected to the smoke hood 21. In this way, the first smoke collecting piece 24 can be installed in the first mounting port 26 and the first smoke collecting piece 24 can be unfolded relative to the smoke hood 21.

[0067] See also Figure 4 , in some embodiments, further comprising: a protective member 40;

[0068] The protective member 40 is arranged on the smoke machine frame 10, and a accommodating cavity 43 is arranged in the protective member 40, and the first rack 22 and the second rack 25 are both located in the accommodating cavity 43; the protective member 40 is respectively provided with a first mounting portion 41 and a second mounting portion 42 on both sides of the accommodating cavity 43, and the first mounting portion 41 and the second mounting portion 42 are arranged on the side of the protective member 40 away from the smoke machine frame 10.

[0069] Optionally, the driving member 23 may be a driving member 23 including a motor and a gear, wherein the rotating shaft of the motor is connected to the gear, and when the motor rotates, the gear is driven to rotate. A protective member 40 is provided to protect the motor and the gear.

[0070] It can be understood that the protective member 40 has a accommodating cavity 43, the protective member 40 is arranged on the smoke machine frame 10, the motor is arranged on the protective member 40, the rotating shaft part of the motor is located in the accommodating cavity 43, the gear, the first rack 22, and the second rack 25 are arranged in the accommodating cavity 43, the gear is engaged with the first rack 22 and the second rack 25, when the motor drives the gear to rotate, the gear drives the first rack 22 and the second rack 25 to move in the first direction or the second direction, and the protective member 40 can provide protection for the gear, the first rack 22 and the second rack 25 when the gear drives the first rack 22 and the second rack 25 to move.

[0071] It can be understood that the first mounting portion 41 and the second mounting portion 42 are respectively disposed on the left and right sides of the accommodating cavity 43, and the first mounting portion 41 and the second mounting portion 42 are disposed on the side of the protective member 40 away from the smoke machine frame 10, that is, Figure 4 Left or right as shown.

[0072] See also Figures 5 to 7 In some embodiments, the smoke collecting assembly 20 further includes: a first guide rail mechanism 50 and a second guide rail mechanism 60;

[0073] The first guide rail mechanism 50 includes a first slide rail 51 and a first slider 52, and the second guide rail mechanism 60 includes a second slide rail 61 and a second slider 62; the first slider 52 is arranged on the first mounting portion 41, and the second slider 62 is arranged on the second mounting portion 42, the first slide rail 51 is connected to the first rack 22, and the second slide rail 61 is connected to the second rack 25; a first limiting member 53 is arranged at one end of the first slide rail 51 away from the smoke collecting member 24, and a second limiting member 63 is arranged at one end of the second slide rail 61 away from the smoke collecting member 24, and the height of the first limiting member 53 is higher than the height of the second limiting member 63.

[0074] It can be understood that the first guide rail mechanism 50 includes a first slide rail 51 and a first slider 52, and the second guide rail mechanism 60 includes a second slide rail 61 and a second slider 62, wherein the first slider 52 is fixedly arranged on the first mounting portion 41, and the second slider 62 is fixedly arranged on the second mounting portion 42, respectively located on both sides of the accommodating cavity 43, and the first slider 52 is fixed on the protective member 40. At this time, the first rack 22 can drive the first slide rail 51 to move. Since the first slide rail 51 is also connected to the smoke hood 21, when the first rack 22 moves, it can drive the first slide rail 51 to move, and then drive the smoke hood 21 to move along the first direction; in this process, the second rack 25 is also driven by the driving member 23 to move along the first direction. Since the second rack 25 is connected to the smoke collecting member 24, when the second rack 25 moves along the first direction, it can drive the smoke collecting member 24 to rotate, so that the smoke collecting member 24 is opened.

[0075] It can be understood that the meshing length between the first rack 22 and the gear is less than the meshing length between the second rack 25 and the gear, that is, the first rack 22 has fewer teeth (such as Figure 5 As shown, when the first rack 22 moves along the first direction and moves to the preset position, the first rack 22 is no longer engaged with the driving member 23, and the smoke hood 21 will not move any more. However, when the first rack 22 needs to move along the second direction, the first rack 22 cannot be engaged with the gear, and the gear cannot drive the first rack 22 to move along the second direction.

[0076] In order to enable the first rack 22 to mesh with the gear when moving in the second direction, a first limit member 53 is provided on the first slide rail 51, and a second limit member 63 is provided on the second slide rail 61. The setting height of the first limit member 53 is higher than the setting height of the second limit member 63. This is to enable the second limit member 63 to drive the first limit member 53 to move in the second direction, thereby enabling the first rack 22 to mesh with the gear and drive the first rack 22 to move; specifically, the driving member 23 drives the second rack 25 to move in the second direction, and the second limit member 63 on the second rack 25 moves in the second direction with the second rack 25 at the same time. When the second limit member 63 moves to the part abutting against the first limit member 53, the second limit member 63 drives the first limit member 53 to move, thereby enabling the first rack 22 to move and mesh with the gear, so that the first gear and the rack can mesh; in this way, the first rack 22 can drive the smoke hood 21 to move in the second direction (the smoke hood 21 rises).

[0077] See also Figure 8 In some embodiments, the smoke collecting member 24 includes: a first guide plate 241, a second guide plate 242, a third guide plate 243 and a fourth guide plate 244;

[0078] The first guide plate 241 and the third guide plate 243 are arranged on both sides of the second guide plate 242, and the two sides of the fourth guide plate 244 are respectively connected to the first guide plate 241 and the third guide plate 243; wherein a flue is formed between the fourth guide plate 244 and the first guide plate 241, the second guide plate 242, and the third guide plate 243.

[0079] It can be understood that the smoke collecting part 24 includes: a first guide plate 241, a second guide plate 242, a third guide plate 243, and a fourth guide plate 244, wherein the first guide plate 241 and the third guide plate 243 are both arranged on both sides of the second guide plate 242, so that the first guide plate 241, the second guide plate 242, and the third guide plate 243 form a guide groove, wherein the first guide plate 241 and the third guide plate 243 are both connected to the hinge 30, and the first guide plate 241, the second guide plate 242 and the third guide plate 243 form a flue with the smoke collecting hood, and the oil smoke enters the smoke collecting hood 21 through the flue and is discharged through the smoke machine frame 10 to realize the extraction of oil smoke.

[0080] It can be understood that the flue formed by the first guide plate 241, the second guide plate 242, and the third guide plate 243 is provided with a fourth guide plate 244, and the fourth guide plate 244 is connected to the first guide plate 241, the second guide plate 242, and the third guide plate 243. The fourth guide plate can be tilted between the first guide plate 241, the second guide plate 242, and the third guide plate 243, so that a gap is formed between the fourth guide plate 244 and the first guide plate 241, the second guide plate 242, and the third guide plate 243, and the oil smoke can enter the smoke hood 21 through the gap between the fourth guide plate 244 and the first guide plate 241, the second guide plate 242, and the third guide plate 243, thereby realizing the collection of oil smoke.

[0081] See also Figure 2 , Fig.10 , Fig.11 In some embodiments, the bottom plate 215 is provided with a plurality of air inlet holes 216 at intervals;

[0082] When the smoke collecting member 24 is in a closed state, the fourth guide plate 244 forms a first angle a with the bottom plate 215 , and when the smoke collecting member 24 is in an open state, the fourth guide plate 244 forms a second angle b with the bottom plate 215 .

[0083] It can be understood that the bottom plate 215 is arranged at the bottom of the smoke hood 21, and a plurality of air inlet holes 216 are arranged on the bottom plate 215. The air inlet holes 216 are smoke inlet holes. The oil smoke enters the smoke hood 21 through the air inlet holes 216, and then the oil smoke is discharged through the smoke machine frame 10, so that the oil smoke can be collected. When the smoke collecting part 24 is closed, the smoke collecting part 24 is located in the smoke hood 21. At this time, the fourth guide plate 244 is located above the bottom plate 215, and the fourth guide plate 244 forms a first angle α with the bottom plate 215, wherein the angle of the first angle a is 20° to 50°, and can specifically be other angles such as 20°, 25°, 30°, 35°, 40°, 45°, 50°, etc.;

[0084] When the smoke collecting member 24 is closed and the oil smoke is sucked, the first angle a will affect the oil smoke suction force of the bottom plate 215; specifically, when the smoke collecting member 24 is closed, the fourth guide plate 244 is located above the bottom plate 215. When the first angle α is larger, the projection area of ​​the third guide plate 243 on the bottom plate 215 is smaller, so that the third guide plate 243 has a smaller impact on the airflow, and the range hood 100 can generate a larger negative pressure space to improve the oil smoke suction efficiency of the range hood 100. When the smoke collecting member 24 is closed, the smaller the first angle α is, the larger the projection area of ​​the third guide plate 243 on the bottom plate 215 is, so that the airflow will be blocked by the third guide plate 243, affecting the oil smoke suction efficiency of the range hood 100.

[0085] When the smoke collecting piece 24 is opened, the fourth guide plate 244 is located outside the smoke hood 21, and the fourth guide plate 244 forms a second angle b with the bottom plate 215. The second angle b can be 100° to 160°, and specifically can be 100°, 105°, 110°, 120°, 125°, 130°, 135°, 140°, 145°, 150°, 155°, 160° or other angles.

[0086] The second angle b mentioned above affects the smoke collecting area of ​​the smoke collecting assembly 20. The second angle b is inversely proportional to the degree of expansion of the smoke collecting member 24. Specifically, when the second angle b is smaller, the degree of expansion of the smoke collecting member 24 is more complete, so that the smoke collecting area of ​​the smoke collecting assembly 20 is larger, which can effectively reduce the escape of oil smoke. When the second angle b is larger, the first smoke collecting member 24 and the second smoke collecting member 24 are relatively incompletely expanded, and their smoke collecting areas are relatively small.

[0087] When the smoke collecting piece 24 is in the open state, the fourth guide plate 244 is no longer located above the bottom plate 215, and the flue corresponding to the bottom plate 215 is completely opened. Most of the oil smoke can be discharged through the smoke hood 21, and the first smoke collecting piece 24 and the second smoke collecting piece 24 on both sides of the smoke hood 21 can absorb the smoke diffused from around the smoke hood 21. In this way, the smoking area of ​​the range hood 100 can be increased to reduce the occurrence of oil smoke escape, thereby improving the smoke exhaust efficiency of the range hood 100.

[0088] See also Fig.10 , in some embodiments, further comprising: a guide member 70;

[0089] A protrusion 71 is disposed at one end of the guide member 70 , and the protrusion 71 is movably disposed in the groove 253 . The other end of the guide member 70 is connected to the smoke collecting member 24 .

[0090] It can be understood that the guide member 70 is used to enable the second rack 25 to drive the smoke collecting member 24 to be movable and expanded or closed. The guide member 70 is arranged to be arc-shaped, one end of which is slidably connected to the second rack 25, and the other end of which is connected to the first smoke collecting member 24. When the driving member 23 drives the second rack 25 to rotate, the second rack 25 moves in the first direction, so that the second rack 25 drives the guide member 70 to move, and then drives the smoke collecting member 24 to expand; when the second rack 25 moves along the second direction, the second rack 25 drives the guide member 70 to move, so that the smoke collecting member 24 is in a closed state.

[0091] See also Fig. 9 In some embodiments, the second rack 25 includes a driving portion 251 and a guide portion 252 ; the guide portion 252 and the driving portion 251 have a third angle c, and the guide portion 252 has a groove 253 .

[0092] It can be understood that the second rack 25 has a driving portion 251 and a guiding portion 252. The driving portion 251 can be arranged in the longitudinal direction, and the rack structure can be arranged on the driving portion 251. The guiding portion 252 is connected to the lower end of the driving portion 251 and extends obliquely downward toward the inner side of the range hood. The driving portion 251 and the guiding portion 252 form an angle, wherein the driving portion 251 is a portion that can be driven by the driving member 23, and the guiding portion 252 is used to cooperate with the guiding member 70; specifically, the guiding portion 252 is arranged There is a groove 253, and a protrusion 71 is provided on the side of the guide member 70 away from the smoke collecting member 24. The protrusion 71 is inserted into the groove 253 and can slide along the groove 253. In this way, when the driving member 23 drives the driving part 251 to move, the second rack 25 moves in the direction close to the first smoke collecting member 24, and the guide part 252 also moves in the direction close to the first smoke collecting member 24, so that the guide member 70 is pushed to move to the part away from the first rack 22, so that the first smoke collecting member 24 can be driven to open. When the second rack 25 moves in the opposite direction away from the first smoke collecting member 24, the guide part 252 moves in the direction away from the first smoke collecting member 24, so that the guide member 70 is pulled to move to the part close to the first rack 22, so that the first smoke collecting member 24 can be driven to close.

[0093] Optionally, the third angle c is greater than 90° and less than 180°, so that the driving portion 251 can be tilted relative to the guiding portion 252, so that the guiding portion can drive the smoke collecting member 24 to rotate.

[0094] Mentioning "embodiment" and "implementation method" in the present invention means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrases in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present invention can be combined with other embodiments. In addition, it should be understood that the features, structures or characteristics described in the various embodiments of the present invention can be arbitrarily combined to form another embodiment without departing from the spirit and scope of the technical solution of the present invention, provided that there is no contradiction between them.

[0095] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above preferred implementation modes, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A range hood, characterized in that: include: A smoke extractor frame (10), and a plurality of smoke collecting components (20) sequentially arranged on the smoke extractor frame (10); The smoke collecting assembly (20) comprises: a smoke collecting hood (21), a first rack (22), and a driving member (23); The driving member (23) is arranged on the smoke machine frame (10), the first rack (22) is connected to the smoke collecting hood (21), the first rack (22) is connected to the driving member (23), and the driving member (23) is used to drive the first rack (22) to move along the first direction or the second direction to drive the smoke collecting hood (21) to move.

2. The range hood according to claim 1, characterized in that: The smoke collecting assembly (20) further comprises: a smoke collecting member (24) and a second rack (25); The smoke collecting member (24) is movably arranged on the smoke collecting hood (21), the second rack (25) is connected to the smoke collecting member (24), the second rack (25) cooperates with the driving member (23), and the second rack (25) is used to drive the smoke collecting member (24) to open or close.

3. The range hood according to claim 2, characterized in that: The smoke collecting hood (21) comprises: a first baffle (211), a second baffle (212), a third baffle (213), a fourth baffle (214) and a bottom plate (215); The first baffle (211), the second baffle (212), the third baffle (213), and the fourth baffle (214) are connected end to end around the outer circumference of the bottom plate (215), wherein the length of the second baffle (212) and the length of the fourth baffle (214) are both shorter than the first baffle (211) or the third baffle (213); The first baffle plate (211), the third baffle plate (213) and the second baffle plate (212) enclose a mounting opening (26), and the smoke collecting member (24) is movably arranged in the mounting opening (26).

4. The range hood according to claim 3, characterized in that: Also includes: Hinge (30); The first baffle plate (211) and the third baffle plate (213) are both provided with hinges (30), and the smoke collecting member (24) is movably arranged in the installation opening (26) via the hinges (30).

5. The range hood according to claim 2, characterized in that: Also includes: Protective element (40); The protective member (40) is arranged on the smoke extractor frame (10), and a receiving cavity (43) is arranged inside the protective member (40), and the first rack (22) and the second rack (25) are both located in the receiving cavity (43); the protective member (40) is provided with a first mounting portion (41) and a second mounting portion (42) on both sides of the receiving cavity (43) respectively, and the first mounting portion (41) and the second mounting portion (42) are arranged on a side of the protective member (40) away from the smoke extractor frame (10).

6. The range hood according to claim 5, characterized in that: The smoke collecting assembly (20) further comprises: a first guide rail mechanism (50) and a second guide rail mechanism (60); The first guide rail mechanism (50) comprises a first slide rail (51) and a first slider (52), and the second guide rail mechanism (60) comprises a second slide rail (61) and a second slider (62); the first slider (52) is arranged on the first mounting portion (41), and the second slider (62) is arranged on the second mounting portion (42); the first slide rail (51) is connected to the first rack (22), and the second slide rail (61) is connected to the second rack (25); a first limiting member (53) is arranged at one end of the first slide rail (51) away from the smoke collecting member (24), and a second limiting member (63) is arranged at one end of the second slide rail (61) away from the smoke collecting member (24); the height of the first limiting member (53) is higher than the height of the second limiting member (63).

7. The range hood according to claim 3, characterized in that: The smoke collecting member (24) comprises: a first guide plate (241), a second guide plate (242), a third guide plate (243) and a fourth guide plate (244); The first guide plate (241) and the third guide plate (243) are arranged on both sides of the second guide plate (242), and both sides of the fourth guide plate (244) are respectively connected to the first guide plate (241) and the third guide plate (243); wherein a flue is formed between the fourth guide plate (244) and the first guide plate (241), the second guide plate (242), and the third guide plate (243).

8. The range hood according to claim 7, characterized in that: The bottom plate (215) is provided with a plurality of air inlet holes (216) at intervals; When the smoke collecting piece (24) is in a closed state, the fourth guide plate (244) and the bottom plate (215) form a first angle a, and when the smoke collecting piece (24) is in an open state, the fourth guide plate (244) and the bottom plate (215) form a second angle b.

9. The range hood according to claim 2, characterized in that: The second rack (25) comprises a driving portion (251) and a guiding portion (252); the guiding portion (252) and the driving portion (251) have a third included angle c, and the guiding portion (252) has a groove (253).

10. The range hood according to claim 9, characterized in that: Also includes: A guide member (70); One end of the guide member (70) is provided with a protrusion (71), and the protrusion (71) is movably arranged in the groove (253). The other end of the guide member (70) is connected to the smoke collecting member (24).

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