Range hood

Abstract

This invention relates to a range hood. The range hood includes: a frame and multiple sets of smoke collection components sequentially arranged on the frame; each smoke collection component includes: a smoke hood, a first rack, and a drive component; the drive component is disposed on the frame, the first rack is connected to the smoke hood, and the first rack is also connected to the drive component. The drive component drives the first rack to move along a first direction or a second direction to move the smoke hood. This range hood can reduce energy waste.

Description

Technical Field

[0001] This invention relates to the field of range hoods, and specifically to a range hood. Background Technology

[0002] Range hoods have become an indispensable appliance in modern family kitchens. As their usage rate increases, people are paying more and more attention to their smoke extraction efficiency and aesthetic appeal. Currently, for the sake of aesthetics, lift-up range hoods have fixed smoke extraction vents, and the entire hood is raised and lowered as a whole. However, in some scenarios, a large smoke extraction area may not be necessary, leading to energy waste. Summary of the Invention

[0003] Therefore, the present invention provides a range hood. The range hood can reduce energy waste.

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

[0005] The smoke collection assembly includes: a smoke hood, a first rack, and a drive component;

[0006] The driving component is mounted on the smoke machine frame. The first rack is connected to the smoke collection hood and the driving component is also connected to the driving component. The driving component is used to drive the first rack to move along a first direction or a second direction to move the smoke collection hood.

[0007] Furthermore, the smoke collection assembly also includes: a smoke collection element and a second rack;

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

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

[0010] The first baffle, the second baffle, the third baffle, and the fourth baffle are connected end to end around the outer periphery of the base plate, wherein the length of the second baffle and the length of the fourth baffle are both less than the length of the first baffle or the third baffle.

[0011] The first baffle, the third baffle, and the second baffle together form an installation opening, and the smoke collecting component is movably disposed within the installation opening.

[0012] Furthermore, it also includes: hinges;

[0013] Both the first baffle and the third baffle are provided with hinges, and the smoke collecting component is movably mounted in the mounting port via the hinges.

[0014] Furthermore, it also includes: protective components;

[0015] The protective component is mounted on the smoke machine frame, and a receiving cavity is provided inside the protective component. The first rack and the second rack are both located inside the receiving cavity. The protective component is provided with a first mounting part and a second mounting part on both sides of the receiving cavity, and the first mounting part and the second mounting part are located on the side of the protective component away from the smoke machine frame.

[0016] Furthermore, the smoke collection assembly also includes: 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 disposed in the first mounting part, the second slider is disposed in the second mounting part, 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 disposed at the end of the first slide rail away from the smoke collecting member, and a second limiting member is disposed at the 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 component includes: 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 disposed on both sides of the second guide plate, and the two sides of the fourth guide plate are respectively connected to the first guide plate and the third guide plate; wherein, the fourth guide plate forms a flue with the first guide plate, the second guide plate and the third guide plate.

[0020] Furthermore, the base plate is provided with multiple air inlet holes at intervals;

[0021] When the smoke collection device is in the closed state, the fourth guide plate forms a first angle a with the bottom plate; when the smoke collection device is in the open state, the fourth guide plate forms a second angle b with the bottom plate.

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

[0023] Furthermore, it also includes: guide components;

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

[0025] The aforementioned range hood features multiple smoke collection components mounted on its frame. When smoke is present in a specific area, the range hood can be raised or lowered by adjusting the corresponding smoke collection component on the frame. Specifically, a first rack is fixedly connected to the smoke collection hood. A drive unit is mounted on the frame and connected to the first rack. When smoke is generated in the area corresponding to the smoke collection component, the drive unit moves the first rack along a first or second direction. As the first rack moves along the first or second direction, it moves the smoke collection hood in that direction, thus raising or lowering the smoke collection hood on the frame and bringing it closer to the cooktop. This allows for zoned control of the range hood, reduces energy consumption, and the lift-up design minimizes its space occupation in the kitchen, improving space utilization. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

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

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

[0029] Figure 3 This is a partial structural schematic diagram of a range hood provided in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the protective component provided in an embodiment of the present invention;

[0031] Figure 5 This is one of the partial structural schematic diagrams of the smoke collection assembly provided in an embodiment of the present invention;

[0032] Figure 6 This is a second partial structural schematic diagram of the smoke collection assembly provided in an embodiment of the present invention;

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

[0034] Figure 8 This is a schematic diagram of the structure of the smoke collection component provided in an embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the structure of the second rack provided in an embodiment of the present invention;

[0036] Figure 10 The second schematic diagram of the structure of the range hood provided in the embodiment of the present invention.

[0037] Figure 11 This is the third structural schematic diagram of the range hood provided in the embodiment of the present invention;

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

[0039] Explanation of reference numerals in the attached figures:

[0040] 100-Range hood; 10-Range hood frame; 20-Smoke collection assembly; 21-Smoke hood; 211-First baffle; 212-Second baffle; 213-Third baffle; 214-Fourth baffle; 215-Base plate; 216-Air inlet; 22-First rack; 23-Drive component; 24-Smoke collection component; 241-First guide plate; 242-Second guide plate; 243-Third guide plate; 244-Fourth guide plate; 25-Second rack; 251-Drive unit; 252-Guide unit; 253-Groove; 26-Mounting port; 30-Hinge; 40-Protective component; 41-First mounting unit; 42-Second mounting unit; 43-Accommodating cavity; 50-First guide rail mechanism; 51-First slide rail; 52-First slider; 53-First limiting component; 60-Second guide rail mechanism; 61-Second slide rail; 62-Second slider; 63-Second limiting component; 70-Guide component; 71-Protrusion. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0043] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0044] Range hoods have become an indispensable appliance in modern family kitchens. As their usage rate increases, people are paying more and more attention to their smoke extraction efficiency and aesthetic appeal. Currently, for the sake of aesthetics, lift-up range hoods have fixed smoke extraction vents, and the entire hood is raised and lowered as a whole. However, in some scenarios, a large smoke extraction area may not be necessary, leading to energy waste.

[0045] For ease of subsequent explanation, Figure 1 The viewpoints shown define a first direction, a second direction, a third direction, and a fourth direction, where the first direction is as follows: Figure 1 The X direction shown is as follows: Figure 1 The first direction is from top to bottom. The second direction is as follows: Figure 1 The Y direction shown in , that is Figure 1 The direction from bottom to top. The third direction is as follows: Figure 1 As shown in the figure, direction A is... Figure 1 The direction shown is from left to right.

[0046] Therefore, this embodiment provides a range hood 100. The range hood 100 can reduce energy waste.

[0047] Please see Figure 1 A range hood 100 includes: a range hood frame 10 and multiple sets of smoke collection components 20 sequentially arranged on the range hood frame 10;

[0048] The smoke collection assembly 20 includes: a smoke hood 21, a first rack 22, and a drive component 23;

[0049] The driving component 23 is disposed on the smoke machine frame 10. The first rack 22 is connected to the smoke collection hood 21. The first rack 22 is connected to the driving component 23. The driving component 23 is used to drive the first rack 22 to move along a first direction or a second direction to drive the smoke collection hood 21 to move.

[0050] The aforementioned range hood 100 is equipped with multiple smoke collection components 20 on the range hood frame 10. When there is smoke in a certain area, the range hood 100 can be raised or lowered by the corresponding smoke collection component 20 on the range hood frame 10. Specifically, the first rack 22 is fixedly connected to the smoke collection hood 21. A drive component 23 is set on the range hood frame 10 and connected to the first rack 22. When smoke is generated in the area corresponding to the smoke collection component 20, the drive component 23 drives the first rack 22 to move in a first direction or a second direction. When the first rack 22 moves in the first direction or the second direction, it drives the smoke collection hood 21 to move in the first direction or the second direction. In this way, the smoke collection hood 21 can be raised or lowered on the range hood frame 10, allowing the smoke collection hood 21 to descend and approach the stove. In this way, the range hood 100 can achieve zoned control, with better smoke collection and exhaust effect, and can also reduce energy loss. The lifting range hood 100 can also reduce the space occupied by the range hood 100 in the kitchen and improve the space utilization of the kitchen.

[0051] Understandably, multiple smoke collection components 20 are provided on the range hood frame 10. Each smoke collection component 20 includes a smoke hood 21, a first rack 22, and a drive component 23. The smoke hood 21 is fitted onto the range hood frame 10, which can be fixedly installed in a designated position, such as a wall. The drive component 23 is fixedly installed on the range hood frame 10, and the first rack 22 is fixedly connected to the smoke hood 21. The drive component 23 is connected to the first rack 22, and can drive the first rack 22 to move in a first or second direction. Specifically, when the drive component 23 drives the first rack 22 to move in the first direction, the first rack 22 drives the smoke hood 21 to move in the first direction. When the drive component 23 drives the first rack 22 to move in the second direction, the first rack 22 drives the smoke hood 21 to move in the second direction.

[0052] In this embodiment, two smoke collection components 20 are provided on the range hood frame 10, with the two smoke collection components 20 respectively located on the left or right side of the range hood frame 10. Correspondingly, cooking positions (burners) are provided on both the left and right sides of the stove, meaning the two smoke collection components 20 are respectively located above the two burners of the stove. The usage scenario in this embodiment is as follows: cooking is taking place at one of the cooking positions on the stove, for example, on the left side. At this time, the smoke hood 21 on the left side of the range hood frame 10 is driven by the drive component 23 and the first rack 22 to move along a first direction, causing the smoke hood 21 to descend and extract the oil fumes generated during cooking at the cooking position on the left side of the stove. Thus, the smoke collection component 20 on the right side does not participate in the oil fume extraction work; therefore, the drive component 23 on the left side does not need to participate in the driving work, thereby reducing energy waste.

[0053] Please see Figure 1 and Figure 12In some embodiments, the smoke collection assembly 20 further includes a smoke collection element 24 and a second rack 25;

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

[0055] Understandably, the smoke collection assembly 20 also includes a smoke collection element 24 and a second rack 25. The smoke collection element 24 is movably mounted on the smoke hood 21 and can expand outward and retract inward relative to the smoke hood 21. The second rack 25 is connected to the smoke collection element 24 and is adjacent to the first rack 22. The second rack 25 cooperates with the drive element 23 and can be driven by the drive element 23 to move in a first direction or a second direction. When the second rack 25 is driven by the drive element 23 to move in the first direction or the second direction, it drives the smoke collection element 24 to open (expand outward to protrude from the side of the smoke hood 21) or close (retract inward to abut against the side of the smoke hood 21).

[0056] Specifically, when the second rack 25 is driven by the drive member 23 to move in the first direction, the smoke collector 24 is driven by the second rack 25 to rotate away from the smoke machine frame 10, at which time the smoke collector 24 opens. When the second rack 25 is driven by the drive member 23 to move in the second direction, the smoke collector 24 is driven by the second rack 25 to rotate towards the smoke machine frame 10, at which time the smoke collector 24 closes.

[0057] Please see 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 base 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 outer periphery of the base plate 215, wherein the length of the second baffle 212 and the length of the fourth baffle 214 are both less than the length of the first baffle 211 or the third baffle 213.

[0059] The first baffle 211, the third baffle 213 and the second baffle 212 surround to form an installation opening 26, and the smoke collecting component 24 is movably disposed within the installation opening 26.

[0060] Understandably, a first baffle 211, a second baffle 212, a third baffle 213, and a fourth baffle 214 are arranged around the outer periphery of the base plate 215 to form a smoke hood 21. The first baffle 211 and the third baffle 213 are arranged opposite each other and connected to the base plate 215. The second baffle 212 and the fourth baffle 214 are arranged opposite each other and the fourth baffle 214 is connected to the base plate 215. The second baffle 212 is not connected to the base plate 215. The length of the second baffle 212 and the fourth baffle 214 is less than that of the third baffle 213 or the first baffle 211. Thus, the second baffle 212, the first baffle 211, and the third baffle 213 enclose and form an installation opening 26.

[0061] Understandably, the smoke collecting component 24 is movably disposed within the mounting port 26, which is located near the bottom of the first baffle 211 or the third baffle 213. The two sides of the smoke collecting component 24 are movably disposed on the first baffle 211 and the third baffle 213, respectively. Thus, when the second rack 25 moves along the first direction, the smoke collecting component 24 is driven to move outward from the mounting port 26, causing the smoke collecting component 24 to unfold relative to the smoke hood 21. After the smoke collecting component 24 unfolds relative to the smoke hood 21, it can increase the smoke extraction area of ​​the range hood 100, improve the smoke extraction efficiency of the range hood 100, and reduce the occurrence of smoke escape.

[0062] Understandably, the smoke collection unit 24 is equipped with a flue, which is connected to the flue in the smoke machine frame 10. When the fan in the smoke machine frame 10 starts to work, a negative pressure is also formed in the smoke collection unit 24 to achieve the purpose of absorbing oil fumes.

[0063] Please see Figure 3 In some embodiments, a hinge 30 is also included;

[0064] Both the first baffle 211 and the third baffle 213 are provided with hinges 30, and the smoke collecting component 24 is movably mounted at the mounting port 26 via the hinges 30.

[0065] Understandably, the hinge 30 is used to movably install the smoke collection component 24 at the mounting port 26. There are two hinges 30, which are respectively set on the first baffle 211 and the third baffle 213. The upper ends of both sides of the smoke collection component 24 are connected to the two hinges 30 respectively, so that the smoke collection component 24 can rotate at the mounting port 26, so that the smoke collection component 24 can unfold relative to the smoke hood 21.

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

[0067] Please see Figure 4 In some embodiments, it also includes: a protective element 40;

[0068] The protective component 40 is disposed on the smoke machine frame 10, and the protective component 40 has a receiving cavity 43. The first rack 22 and the second rack 25 are both located in the receiving cavity 43. The protective component 40 has a first mounting part 41 and a second mounting part 42 respectively disposed on both sides of the receiving cavity 43. The first mounting part 41 and the second mounting part 42 are disposed on the side of the protective component 40 away from the smoke machine frame 10.

[0069] Optionally, the aforementioned drive component 23 may be a drive component 23 including a motor and gears, with the motor shaft connected to the gears. When the motor rotates, it drives the gears to rotate. In order to protect the motor and gears, a protective component 40 is provided.

[0070] Understandably, the protective component 40 has a receiving cavity 43. The protective component 40 is mounted on the smoke machine frame 10, and the motor is mounted on the protective component 40. The rotating shaft of the motor is located in the receiving cavity 43. The gear, the first rack 22, and the second rack 25 are mounted in the receiving cavity 43. The gear meshes 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 a first direction or a second direction. The protective component 40 can then 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] Understandably, a first mounting part 41 and a second mounting part 42 are respectively provided on the left and right sides of the receiving cavity 43. The first mounting part 41 and the second mounting part 42 are located on the side of the protective member 40 away from the smoke machine frame 10, that is, as shown in the figure. Figure 4 The left or right side as shown.

[0072] Please see Figures 5 to 7 In some embodiments, the smoke collection 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 disposed in the first mounting portion 41, and the second slider 62 is disposed in 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 provided at the end of the first slide rail 51 away from the smoke collector 24, and a second limiting member 63 is provided at the end of the second slide rail 61 away from the smoke collector 24. The height of the first limiting member 53 is higher than the height of the second limiting member 63.

[0074] Understandably, 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 fixedly mounted on the first mounting part 41, and the second slider 62 is fixedly mounted on the second mounting part 42, respectively located on both sides of the accommodating cavity 43. 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, thereby driving the smoke hood 21 to move along the first direction. During 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, causing the smoke collecting member 24 to open.

[0075] Understandably, 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, meaning that the portion of the first rack 22 with teeth is smaller (e.g., Figure 5 As shown in the diagram, when the first rack 22 moves along the first direction and reaches the preset position, the first rack 22 no longer engages with the driving member 23, and the smoke hood 21 will no longer move. However, this also means that when the first rack 22 needs to move along the second direction, it cannot engage with the gear, and thus the gear cannot drive the first rack 22 to move along the second direction.

[0076] To enable the first rack 22 to mesh with the gear when moving in the second direction, a first limiting member 53 is provided on the first slide rail 51, and a second limiting member 63 is provided on the second slide rail 61. The height of the first limiting member 53 is higher than that of the second limiting member 63. This is so that the second limiting member 63 can drive the first limiting 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 limiting member 63 on the second rack 25 moves in the second direction at the same time. When the second limiting member 63 moves to the part that abuts against the first limiting member 53, the second limiting member 63 drives the first limiting member 53 to move, thereby enabling the first rack 22 to move and mesh with the gear, so that the first gear can mesh with the rack. 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] Please see Figure 8 In some embodiments, the smoke collecting element 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 disposed 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, the fourth guide plate 244 forms a flue with the first guide plate 241, the second guide plate 242 and the third guide plate 243.

[0079] Understandably, the smoke collection component 24 includes: 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 both located on both sides of the second guide plate 242, thus forming a guide channel. The first guide plate 241 and the third guide plate 242 are connected to the hinge 30. The first guide plate 241, the second guide plate 242, and the third guide plate 243 form a flue with the smoke collection hood. The fumes enter the smoke collection hood 21 through the flue and are discharged through the smoke machine frame 10 to achieve the extraction of fumes.

[0080] Understandably, the flue formed by the first guide plate 241, the second guide plate 242, and the third guide plate 243 is equipped with a fourth guide plate 244. 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 inclined 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. The oil fumes can enter the fume collection 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, thus realizing the collection of oil fumes.

[0081] Please see Figure 2 , Figure 10 , Figure 11 In some embodiments, the base plate 215 is provided with a plurality of air inlets 216 at intervals;

[0082] When the smoke collection component 24 is in the closed state, the fourth guide plate 244 and the bottom plate 215 form a first included angle a. When the smoke collection component 24 is in the open state, the fourth guide plate 244 and the bottom plate 215 form a second included angle b.

[0083] Understandably, the base plate 215 is located at the bottom of the fume hood 21, and multiple air inlets 216 are provided on the base plate 215. The air inlets 216 are the smoke inlets, through which the fumes enter the fume hood 21, and are then discharged by the fume hood frame 10, thus achieving the collection of fumes. When the fume collecting component 24 is closed, it is located inside the fume hood 21. At this time, the fourth guide plate 244 is located above the base plate 215, and the fourth guide plate 244 forms a first angle α with the base plate 215. The angle α is 20° to 50°, and can be any other angle such as 20°, 25°, 30°, 35°, 40°, 45°, or 50°.

[0084] When the smoke collector 24 is closed, the first included angle α affects the suction power of the base plate 215. Specifically, with the smoke collector 24 closed, the fourth guide plate 244 is located above the base plate 215. The larger the first included angle α, the smaller the projected area of ​​the third guide plate 243 on the base plate 215. This reduces the impact of the third guide plate 243 on the airflow, allowing the range hood 100 to generate a larger negative pressure space and improve its smoke extraction efficiency. Conversely, with the smoke collector 24 closed, the smaller the first included angle α, the larger the projected area of ​​the third guide plate 243 on the base plate 215. This causes the airflow to be blocked by the third guide plate 243, affecting the smoke extraction efficiency of the range hood 100.

[0085] When the smoke collection component 24 is opened, the fourth guide plate 244 is located outside the smoke collection hood 21. The fourth guide plate 244 and the bottom plate 215 form a second included angle b. The angle of the second included angle b can be 100° to 160°, and specifically it can be other angles such as 100°, 105°, 110°, 120°, 125°, 130°, 135°, 140°, 145°, 150°, 155°, 160°, etc.

[0086] The aforementioned second included angle b affects the smoke-gathering area of ​​the smoke-collecting assembly 20. The second included angle b is inversely proportional to the degree of unfolding of the smoke-collecting component 24. Specifically, when the included angle b is smaller, the smoke-collecting component 24 unfolds more completely, resulting in a larger smoke-gathering area for the smoke-collecting assembly 20, which effectively reduces the escape of oil fumes. When the second included angle b is larger, the first and second smoke-collecting components 24 unfold relatively incompletely, and their smoke-gathering areas are relatively smaller.

[0087] When the smoke collection component 24 is open, the fourth guide plate 244 is no longer located above the bottom plate 215, and the flue corresponding to the bottom plate 215 is fully open. Most of the oil fumes can be discharged through the smoke collection hood 21. The first smoke collection component 24 and the second smoke collection component 24 on both sides of the smoke collection hood 21 can absorb the smoke that diffuses from around the smoke collection hood 21. This increases the smoke extraction area of ​​the range hood 100, reduces the escape of oil fumes, and improves the smoke extraction efficiency of the range hood 100.

[0088] Please see Figure 10 In some embodiments, it also includes: a guide member 70;

[0089] One end of the guide member 70 is provided with a protrusion 71, which is movably disposed in the groove 253, and the other end of the guide member 70 is connected to the smoke collection member 24.

[0090] Understandably, the guide 70 is used to enable the second rack 25 to drive the smoke collector 24 to open or close. The guide 70 is arc-shaped, with one end slidably connected to the second rack 25 and the other end connected to the first smoke collector 24. When the drive 23 drives the second rack 25 to rotate, the second rack 25 moves in the first direction, thus driving the guide 70 to move, thereby driving the smoke collector 24 to open. When the second rack 25 moves in the second direction, the second rack 25 drives the guide 70 to move, so that the smoke collector 24 is in the closed state.

[0091] Please see Figure 9 In some embodiments, the second rack 25 includes a drive portion 251 and a guide portion 252; the guide portion 252 has a third included angle c with the drive portion 251, and the guide portion 252 has a groove 253.

[0092] Understandably, the second rack 25 has a driving part 251 and a guide part 252. The driving part 251 can be arranged longitudinally, and the rack structure can be arranged on the driving part 251. The guide part 252 is connected to the lower end of the driving part 251 and extends obliquely downward towards the inside of the range hood. The driving part 251 and the guide part 252 form an angle. The driving part 251 is the part that the driving member 23 can drive, and the guide part 252 is used to cooperate with the guide member 70. Specifically, the guide part 252 is provided with... The guide member 70 has a groove 253, and a protrusion 71 is provided on the side of the guide member 70 away from the smoke collector 24. The protrusion 71 is engaged in the groove 253 and can slide along the groove 253. Thus, when the drive member 23 drives the drive part 251, the second rack 25 moves towards the first smoke collector 24, and the guide part 252 also moves towards the first smoke collector 24. This pushes the guide member 70 away from the first rack 22, thereby driving the first smoke collector 24 to open. When the second rack 25 moves away from the first smoke collector 24 in the opposite direction, the guide part 252 moves away from the first smoke collector 24. This pulls the guide member 70 towards the first rack 22, thereby driving the first smoke collector 24 to close.

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

[0094] In this invention, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the invention. The appearance of these phrases in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this invention can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this invention can be arbitrarily combined to form yet another embodiment that does not depart from the spirit and scope of the technical solution of this invention, provided there is no contradiction between them.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of the present invention should not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A range hood, characterized in that, include: Smoke machine frame (10) and multiple sets of smoke collection components (20) arranged sequentially on the smoke machine frame (10); The smoke collection assembly (20) includes: a smoke hood (21), a first rack (22), and a drive component (23); The driving component (23) is disposed on the smoke machine frame (10), the first rack (22) is connected to the smoke hood (21), the first rack (22) is connected to the driving component (23), and the driving component (23) is used to drive the first rack (22) to move along the first direction or the second direction to drive the smoke hood (21) to move; The smoke collection assembly (20) further includes: a smoke collection element (24) and a second rack (25); The smoke collecting component (24) is movably mounted on the smoke hood (21). The second rack (25) is connected to the smoke collecting component (24). The second rack (25) cooperates with the driving component (23). The second rack (25) is used to drive the smoke collecting component (24) to open or close. The smoke hood (21) includes: a first baffle (211), a second baffle (212), a third baffle (213), a fourth baffle (214), and a base 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 periphery of the base plate (215), wherein the length of the second baffle (212) and the length of the fourth baffle (214) are both less than the length of the first baffle (211) or the third baffle (213); The first baffle (211), the third baffle (213) and the second baffle (212) enclose and form an installation opening (26), and the smoke collecting component (24) is movably disposed within the installation opening (26); Also includes: hinges (30); The first baffle (211) and the third baffle (213) are both provided with hinges (30), and the smoke collecting component (24) is movably disposed in the mounting port (26) through the hinges (30); Also includes: protective components (40); The protective component (40) is disposed on the smoke machine frame (10), and a receiving cavity (43) is provided inside the protective component (40). The first rack (22) and the second rack (25) are both located inside the receiving cavity (43). A first mounting part (41) and a second mounting part (42) are respectively provided on both sides of the receiving cavity (43). The first mounting part (41) and the second mounting part (42) are disposed on the side of the protective component (40) away from the smoke machine frame (10). The smoke collection assembly (20) further includes: a first guide rail mechanism (50) and a second guide rail mechanism (60); 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 disposed in the first mounting part (41), the second slider (62) is disposed in the second mounting part (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 provided at the end of the first slide rail (51) away from the smoke collector (24), and a second limiting member (63) is provided at the end of the second slide rail (61) away from the smoke collector (24), and the height of the first limiting member (53) is higher than the height of the second limiting member (63).

2. The range hood according to claim 1, characterized in that, The smoke collection component (24) includes: 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 disposed 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, the fourth guide plate (244) forms a flue with the first guide plate (241), the second guide plate (242) and the third guide plate (243).

3. The range hood according to claim 2, characterized in that, The base plate (215) is provided with a plurality of air inlets (216) at intervals. When the smoke collector (24) is in the closed state, the fourth guide plate (244) and the bottom plate (215) form a first included angle a. When the smoke collector (24) is in the open state, the fourth guide plate (244) and the bottom plate (215) form a second included angle b.

4. The range hood according to claim 2, characterized in that, The second rack (25) includes a drive portion (251) and a guide portion (252); the guide portion (252) and the drive portion (251) have a third included angle c, and the guide portion (252) has a groove (253).

5. The range hood according to claim 4, characterized in that, Also includes: Guide component (70); One end of the guide (70) is provided with a protrusion (71), which is movably disposed in the groove (253), and the other end of the guide (70) is connected to the smoke collector (24).

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