Range hood

Abstract

The utility model relates to a range hood. The range hood comprises a range hood frame, a smoke gathering cover, a flow guide assembly and a driving mechanism, wherein the range hood frame is provided with a flue; the smoke gathering cover is arranged outside the smoke rack in a sleeving manner, a smoke inlet is formed in the bottom of the smoke gathering cover, and the smoke inlet is communicated with the flue; the flow guide assembly is rotatably arranged in the smoke gathering cover, and the flow guide assembly can rotate along one side of the flow guide assembly; the driving mechanism is arranged on the range hood frame, the driving mechanism is connected with the smoke gathering cover and the flow guide assembly, and the driving mechanism is used for driving the smoke gathering cover to move in the first direction or the second direction or driving the flow guide assembly to be opened or closed. The range hood has a relatively large smoke gathering area.

Description

Technical Field

[0001] This utility model 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 increases, people are paying more and more attention to their smoke extraction efficiency and aesthetic appeal. Currently, lift-type range hoods have fixed smoke inlets, meaning the area they can cover is also fixed. In situations with heavy smoke production, this can lead to smoke escape, affecting the range hood's exhaust efficiency. Utility Model Content

[0003] Therefore, this utility model provides a range hood. The range hood has a large smoke collection area.

[0004] This utility model provides the following technical solution: a range hood, comprising:

[0005] A range hood frame, wherein the range hood frame is provided with a flue;

[0006] A smoke hood is fitted over the outside of the smoke machine frame, and a smoke inlet is provided at the bottom of the smoke hood, which is connected to the flue.

[0007] A flow guiding component is rotatably disposed inside the smoke collection hood, and the flow guiding component can rotate along one side of the flow guiding component;

[0008] A driving mechanism is provided on the smoke machine frame and is connected to the smoke collection hood and the flow guiding component. The driving mechanism is used to drive the smoke collection hood to move along a first direction or a second direction, or to drive the flow guiding component to open or close.

[0009] Furthermore, the flow guiding assembly includes: a first flow guiding plate, a second flow guiding plate, a third flow guiding plate, and a fourth flow guiding plate;

[0010] The first guide plate, the second guide plate, and the third guide plate are arranged sequentially around the outer periphery of the fourth guide plate, with the first guide plate and the third guide plate spaced apart on opposite sides of the fourth guide plate;

[0011] The first guide plate, the second guide plate, and the third guide plate all form a flue with the fourth guide plate.

[0012] Furthermore, the first guide plate and the third guide plate gradually increase in size from the end closer to the drive mechanism to the end farther away from the drive mechanism, and the fourth guide plate is disposed on the side of the first guide plate and the second guide plate away from the drive mechanism.

[0013] Furthermore, it also includes: hinges;

[0014] The smoke hood has an installation port on the side away from the drive mechanism, and the flow guiding component is disposed in the installation port. The flow guiding component is installed in the installation port via the hinge.

[0015] Furthermore, the smoke hood has a base plate, and the smoke inlet is disposed on the base plate;

[0016] When the flow guiding component is in the closed state, the fourth flow guiding plate forms a first angle with the base plate; when the flow guiding component is in the open state, the fourth flow guiding plate forms a second angle with the base plate.

[0017] Furthermore,

[0018] The driving mechanism includes: a driving component, a first rack, a second rack, and a guide component;

[0019] The driving component is mounted on the smoke machine frame. The first rack is connected to the smoke collection hood, and the second rack is connected to the fourth guide plate. Both the first rack and the second rack mesh with the driving component.

[0020] The second rack is connected to the guide member on the side near the fourth guide plate, and the other end of the guide member is connected to the fourth guide plate to drive the guide assembly to be in an open or closed state.

[0021] Wherein, the meshing length of the first rack with the driving member is less than the meshing length of the second rack with the driving member.

[0022] Furthermore, it also includes: guide components;

[0023] The second rack is connected to the guide member on the side near the fourth guide plate, and the other end of the guide member is connected to the fourth guide plate to drive the guide assembly to be in an open or closed state.

[0024] Furthermore, the first rack includes a main body and a guide portion, the guide portion having an included angle with the main body; the guide portion has a groove, and a protrusion is provided at the end of the guide member away from the fourth guide plate, the protrusion engaging with the groove.

[0025] Furthermore, it also includes an oil collection tank and a protective shell;

[0026] The oil collection trough is detachably installed on one side of the base plate. The oil collection trough is connected to the interior of the smoke collection hood and is used to collect the oil fumes inside the smoke collection hood.

[0027] The protective shell is fixedly installed on the smoke machine frame, and the protective shell has a receiving cavity, in which the first rack and the second rack are both located.

[0028] Furthermore, it also includes: a first guide rail mechanism and a second guide rail mechanism;

[0029] 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;

[0030] Both the first slider and the second slider are located on the side of the protective shell away from the driving member. The first slide rail is connected to the first rack, the first rack is connected to the smoke hood, and the second slide rail is connected to the second rack. A first limiting member is provided on the side of the second slide rail away from the base plate, and a second limiting member is provided on the first slide rail. The height of the first limiting member along the first direction is higher than that of the second limiting member. When the second limiting member abuts against the first limiting member, the second rack drives the first rack to move.

[0031] The aforementioned range hood frame is fitted with a smoke collection hood, and a smoke inlet is provided inside the smoke collection hood. A flue is provided on the range hood frame, and the smoke inlet is connected to the flue. When the range hood is needed, the drive mechanism drives the smoke collection hood to move in the first direction. When the drive mechanism reaches the preset position, the drive mechanism drives the flow guiding component to unfold, thereby increasing the smoke extraction area of ​​the range hood, opening the smoke inlet, and the range hood to operate, so as to exhaust the oil fumes on the stove through the flue. After the range hood is used up, the drive mechanism drives the flow guiding component to close, and the flue is also closed. Then, the drive mechanism drives the smoke collection hood to move in the second direction, so that the smoke collection hood and the range hood frame are integrated, thereby reducing the space occupied by the range hood in the kitchen. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of the range hood provided in an embodiment of the present utility model;

[0034] Figure 2 This is a partial structural schematic diagram of a range hood provided in an embodiment of the present utility model;

[0035] Figure 3 One of the cross-sectional views of a range hood provided in an embodiment of this utility model;

[0036] Figure 4 A second cross-sectional view of the range hood provided in an embodiment of this utility model;

[0037] Figure 5 One of the structural schematic diagrams of the drive mechanism provided in the embodiment of this utility model;

[0038] Figure 6 A second schematic diagram of the drive mechanism provided in an embodiment of this utility model;

[0039] Figure 7 This is a schematic diagram of the structure of the second rack provided in an embodiment of the present utility model.

[0040] Explanation of reference numerals in the attached figures:

[0041] 100-Rain hood; 10-Rain hood frame; 20-Smoke hood; 21-Mounting port; 22-Base plate; 23-Smoke inlet; 30-Flow guide assembly; 31-First flow guide plate; 32-Second flow guide plate; 33-Third flow guide plate; 34-Fourth flow guide plate; 40-Drive mechanism; 41-Drive component; 42-First rack; 43-Second rack; 431-Main body; 432-Guide part; 633-Groove; 50-Hinge; 60-Guide component; 61-Protrusion; 70-First guide rail mechanism; 71-First slide rail; 72-First slider; 73-First limiting component; 80-Second guide rail mechanism; 81-Second slide rail; 82-Second slider; 83-Second limiting component; 90-Oil collection tank; 91-Protective shell; 92-Accommodation cavity. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model 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.

[0044] 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 present 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.

[0045] Range hoods have become an indispensable appliance in modern family kitchens. As their usage increases, people are paying more and more attention to their smoke extraction efficiency and aesthetic appeal. Currently, lift-type range hoods have fixed smoke inlets, meaning the area they can cover is also fixed. In situations with heavy smoke production, this can lead to smoke escape, affecting the range hood's exhaust efficiency.

[0046] For ease of subsequent explanation of the first and second directions, the first direction in this utility model is parallel to... Figure 1 The X direction shown is the direction from top to bottom of the range hood; the second direction is parallel to... Figure 1 The direction of Y in the middle refers to the direction from bottom to top of the range hood.

[0047] Therefore, this embodiment provides a range hood 100. The range hood 100 has a large smoke collection area.

[0048] Please see Figure 1 and Figure 2 A range hood 100, comprising:

[0049] Smoke hood frame 10, wherein the smoke hood frame 10 is provided with a smoke duct;

[0050] A smoke hood 20 is fitted over the outside of the smoke machine frame 10. The bottom of the smoke hood 20 is provided with a smoke inlet 23, which is connected to the flue.

[0051] A flow guiding component 30 is rotatably disposed inside the smoke collection hood 20, and the flow guiding component 30 can rotate along one side of the flow guiding component 30;

[0052] A drive mechanism 40 is disposed on the smoke machine frame 10. The drive mechanism 40 is connected to the smoke collection hood 20 and the flow guiding component 30. The drive mechanism 40 is used to drive the smoke collection hood 20 to move along a first direction or a second direction, or to drive the flow guiding component 30 to open or close.

[0053] A smoke collection hood 20 is fitted onto the aforementioned range hood frame 10, and a smoke inlet 23 is provided inside the smoke collection hood 20. A flue is provided on the range hood frame 10, and the smoke inlet 23 is connected to the flue. When the range hood 100 is needed, the drive mechanism 40 drives the smoke collection hood 20 to move along the first direction. When the drive mechanism 40 reaches the preset position, the drive mechanism 40 drives the flow guiding component 30 to unfold, thereby increasing the smoke extraction area of ​​the range hood 100, opening the smoke inlet 23, and the range hood 100 operates to exhaust the fumes on the stove through the flue. After the range hood 100 is used up, the drive mechanism 40 drives the flow guiding component 30 to close, and the flue is also closed. Then, the drive mechanism 40 drives the smoke collection hood 20 to move along the second direction, making the smoke collection hood 20 and the range hood frame 10 an integral unit, thereby reducing the space occupied by the range hood 100 in the kitchen.

[0054] Understandably, the smoke hood 20 is set outside the range hood frame 10, and a smoke inlet 23 is provided at the bottom of the smoke hood 20. The smoke inlet 23 is connected to the flue inside the range hood frame 10, and the oil fumes can be discharged from the flue through the smoke inlet 23. A drive mechanism 40 is provided on the range hood frame 10. The drive mechanism 40 is connected to the smoke hood 20 and the guide assembly 30 respectively. The drive mechanism 41 drives the smoke hood 20 to move in the first direction so that the smoke hood 20 descends and approaches the stove, or drives the smoke hood 20 to move in the second direction so that the smoke hood 20 moves away from the stove.

[0055] Understandably, when the drive component 41 mechanism drives the smoke hood 20 to move along the first direction and moves to the preset position, the smoke hood 20 stops moving. Subsequently, the drive component 41 mechanism drives the flow guide component 30 to rotate, so that the flow guide component 30 opens, thereby opening the flue inside the smoke hood 20 and bringing the flow guide component 30 close to the stove to absorb the oil fumes on the stove.

[0056] Please see Figure 2 In some embodiments, the flow guiding assembly 30 includes: a first flow guiding plate 31, a second flow guiding plate 32, a third flow guiding plate 33, and a fourth flow guiding plate 34;

[0057] The first guide plate 31, the second guide plate 32, and the third guide plate 33 are arranged sequentially around the outer periphery of the fourth guide plate 34, with the first guide plate 31 and the third guide plate 33 spaced apart on opposite sides of the fourth guide plate 34.

[0058] The first guide plate 31, the second guide plate 32, and the third guide plate 33 all form a flue with the fourth guide plate 34.

[0059] Understandably, the flow guiding assembly 30 consists of a first flow guiding plate 31, a second flow guiding plate 32, a third flow guiding plate 33, and a fourth flow guiding plate 34. The first flow guiding plate 31, the second flow guiding plate 32, and the third flow guiding plate 33 are sequentially arranged around the outer periphery of the fourth flow guiding plate 34. Specifically, the first flow guiding plate 31, the second flow guiding plate 32, and the third flow guiding plate 33 enclose a cavity with a triangular cross-section. The fourth flow guiding plate 34 is disposed within the cavity and is connected to the first flow guiding plate 31, the second flow guiding plate 32, and the third flow guiding plate 33, respectively. There are gaps between the fourth guide plate 34 and the first guide plate 31, the second guide plate 32, and the third guide plate 33. That is, the fumes can enter the fume collection hood 20 through the gaps between the fourth guide plate 34 and the first guide plate 31, the second guide plate 32, and the third guide plate 33, and then be discharged through the flue of the range hood 100. The guide component 30 can improve the efficiency of the range hood 100 in extracting fumes. The guide component 30 can block the fumes and also increase the size of the smoke inlet 23 of the range hood 100 to draw in a larger amount of fumes, thus ensuring the exhaust efficiency of the range hood 100.

[0060] Please see Figure 3 In some embodiments, the first guide plate 31 and the third guide plate 33 gradually increase in size from the end closer to the drive mechanism 40 to the end farther away from the drive mechanism 40, and the fourth guide plate 34 is disposed on the side of the first guide plate 31 and the second guide plate 32 away from the drive mechanism 40.

[0061] Understandably, the first guide plate 31 and the third guide plate 33 gradually increase in size from the end closer to the drive mechanism 40 to the end farther away from the drive mechanism 40. That is, the first guide plate 31 and the third guide plate 33 are wedge-shaped, with a larger bottom and a smaller top. The top is located close to the drive mechanism 40, and the bottom is located close to the smoke inlet 23 of the smoke hood 20. When the first guide plate 31 and the third guide plate 33 are set on the second guide plate 32, they form a guide flue. This allows the range hood 100 to draw in oil fumes more smoothly into the flue and also increases the amount of smoke entering the flue, thereby improving the smoke exhaust efficiency of the range hood 100.

[0062] Please see Figure 2 In some embodiments, it also includes: hinge 50;

[0063] The smoke hood 20 has an installation port 21 on the side away from the drive mechanism 40. The flow guiding component 30 is disposed in the installation port 21 and is installed in the installation port 21 by the hinge 50.

[0064] Understandably, hinge 50 is used to connect the airflow guide assembly 30 and the smoke hood 20. Specifically, a mounting opening 21 is provided on the side of the smoke hood 20 away from the drive mechanism 40, and the mounting opening 21 is a hollow part. The airflow guide assembly 30 is disposed inside the mounting opening 21. The airflow guide assembly 30 is disposed inside the smoke hood 20 via hinge 50. Specifically, hinge 50 is provided on both sides of the smoke hood 20 near the mounting opening 21, and the hinge 50 is connected to the airflow guide assembly 30. In this way, when the drive mechanism 40 moves in the first direction, it can drive the airflow guide assembly 30 to rotate, so that the airflow guide assembly 30 rotates. After the airflow guide assembly 30 is opened, part of the airflow guide assembly 30 is located outside the smoke hood 20, forming an angle with the smoke hood 20, which increases the smoke inlet 23 of the range hood 100, thereby increasing the smoke intake volume and the smoke exhaust area of ​​the range hood 100.

[0065] Please see Figures 2 to 4 In some embodiments, the smoke hood 20 has a base plate 22, on which an air inlet is provided;

[0066] When the flow guiding component 30 is in the closed state, the fourth flow guiding plate 34 forms a first angle with the base plate 22; when the flow guiding component 30 is in the open state, the fourth flow guiding plate 34 forms a second angle with the base plate 22.

[0067] Understandably, a base plate 22 is provided at the bottom of the fume hood 20, and an air inlet is provided on the base plate 22, which is also the smoke inlet 23. The fumes enter the fume hood 20 through the air inlet and are then discharged through the fume hood 20. When the flow guide component 30 is closed, it is located inside the fume hood 20, and there is a gap between it and the side wall of the fume hood 20. When the flow guide component 30 is closed, the fumes can be discharged through the gap between the fume hood 20 and the flow guide component 30. The angle of the fourth flow guide component in the flow guide component 30 affects the size of the gap between the fume hood 20 and the flow guide component 30 in the closed state, and also affects the smoke collection area of ​​the flow guide component 30 in the open state.

[0068] Understandably, when the flow guiding assembly 30 is closed, the fourth flow guiding plate 34 forms a first angle with the base plate 22. The flow guiding assembly 30 is located inside the smoke hood 20, and the fourth flow guiding plate 34 is located above the base plate 22. The first angle between the fourth flow guiding plate 34 and the base plate 22 can be 20° to 70°, specifically 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 70°, or other angles.

[0069] When the flow guide component 30 is closed, the first included angle affects the smoke exhaust volume of the range hood 100. A larger first included angle α results in a larger gap between the smoke collection hood 20 and the fourth flow guide plate 34, thus enabling the range hood 100 to have a larger smoke exhaust volume and higher smoke exhaust efficiency even when the flow guide component 30 is closed. This is particularly useful when the amount of smoke is relatively large. Specifically, when the amount of smoke is large, higher smoke exhaust efficiency is required. A larger gap between the fourth flow guide plate 34 and the smoke collection hood 20 allows the smoke to be discharged from the flue more quickly, thereby improving the smoke exhaust efficiency of the range hood 100. Conversely, a smaller first included angle α results in a smaller gap between the flow guide component 30 and the smoke collection hood 20, affecting the smoke exhaust efficiency of the range hood 100.

[0070] Understandably, when the flow guiding component 30 is in the open state, the fourth flow guiding plate 34 and the base plate 22 form a second angle, the range of which is 120° to 170°, specifically it can be other angles such as 120°, 125°, 130°, 135°, 140°, 145°, 150°, 155°, 160°, 165°, 170°, etc.

[0071] When the flow guide component 30 is in the open state, the second included angle affects the smoke collection area of ​​the flow guide component 30. The larger the second included angle, the smaller the unfolding angle of the flow guide component 30, and the closer the flow guide component 30 is to the guide plate, resulting in a smaller smoke collection area. Conversely, the smaller the second included angle, the larger the unfolding angle of the flow guide component 30, and the farther the flow guide component 30 is from the guide plate, resulting in a larger smoke collection area. This increases the smoke collection area of ​​the range hood 100 and also increases the area of ​​the smoke inlet 23 of the smoke hood 20, reducing the escape of fumes. Simultaneously, it increases the smoke intake of the range hood 100, further increasing the exhaust volume when the exhaust volume of the range hood 100 has redundancy.

[0072] Please see Figure 5 and Figure 6 In some embodiments, the drive mechanism 40 includes: a drive member 41, a first rack 42, a second rack 43, and a guide member 60;

[0073] The driving component 41 is disposed on the smoke machine frame 10, the first rack 42 is connected to the smoke collection hood 20, the second rack is connected to the fourth guide plate 34, and both the first rack 42 and the second rack 43 are engaged with the driving component 41.

[0074] The second rack 43 is connected to the guide member 60 on the side near the fourth guide plate 34, and the other end of the guide member 60 is connected to the fourth guide plate 34 to drive the guide assembly 30 to be in an open or closed state.

[0075] Wherein, the meshing length of the first rack 42 with the driving member 41 is less than the meshing length of the second rack 43 with the driving member 41.

[0076] Understandably, the drive mechanism 40 includes a drive member 41, a first rack 42, and a second rack 43. The drive member 41 is fixedly mounted on the smoke machine frame 10. The first rack 42 is connected to the smoke collection hood 20, and the second rack 43 is connected to the flow guiding assembly 30. Both the first rack 42 and the second rack 43 are engaged with the drive member 41. When the drive member 41 rotates, it drives the first rack 42 and the second rack 43 to move along a first direction or a second direction, thereby driving the smoke collection hood 20 to move along the first direction or the second direction. At the same time, it drives the flow guiding assembly 30 to unfold.

[0077] The portion of the first rack 42 with teeth is smaller than the portion of the second rack 43 with teeth. That is, a portion of the first rack 42 does not have teeth that mesh with the driving member 41. When the first rack 42 and the second rack 43 mesh with the driving member 41, the meshing length between the first rack 42 and the driving member 41 is less than the meshing length between the second rack 43 and the driving member 41. This allows the driving member 41 to drive the smoke hood 20 to a preset position, after which the smoke hood 20 is no longer driven. Its specific application scenario is when the amount of oil smoke is small, there is no need to open the flow guiding component 30, and the oil smoke can be discharged through the gap between the smoke hood 20 and the flow guiding component 30.

[0078] The portion of the first rack 42 with teeth is smaller than the portion of the second rack 43 with teeth. That is, a portion of the first rack 42 does not have teeth that mesh with the driving member 41. When the first rack 42 and the second rack 43 mesh with the driving member 41, the meshing length between the first rack 42 and the driving member 41 is less than the meshing length between the second rack 43 and the driving member 41. This allows the driving member 41 to drive the smoke hood 20 to a preset position, after which the smoke hood 20 is no longer driven. Its specific application scenario is when the amount of oil smoke is small, there is no need to open the flow guiding component 30, and the oil smoke can be discharged through the gap between the smoke hood 20 and the flow guiding component 30.

[0079] Understandably, the guide member 60 is used to cause the second rack 43 to drive the flow guiding assembly 30 to unfold. The guide member 60 is set in an arc shape, with one end of the guide member 60 set on the fourth flow guiding plate 34 and the other end of the guide member 60 set on the second rack 43. When the drive member 41 rotates, it drives the second rack 43 to move in the first direction. When the second rack 43 moves in the first direction, it drives the guide member 60 to move, causing the guide member 60 to rotate and open. When the second rack 43 moves in the second direction, it drives the guide member 60 to move in the opposite direction, and the guide member 60 rotates and closes.

[0080] Please see Figure 7In some embodiments, the first rack 42 includes a main body 431 and a guide portion 432, the guide portion 432 having an angle with the main body 431; the guide portion 432 has a groove 633, and a protrusion 61 is provided at one end of the guide member 60 away from the fourth guide plate 34, the protrusion 61 cooperating with the groove 633.

[0081] Understandably, the first rack 42 includes a main body 431 and a guide portion 432, with the main body 431 and the guide portion 432 forming an angle. The main body 431 is the part that cooperates with the driving member 41 and can be driven by the driving member 41. The guide portion 432 is used to cooperate with the guide member 60. Specifically, a groove 633 is provided in the guide portion 432, and a protrusion 61 is provided on the side of the guide member 60 away from the flow guiding assembly 30. The protrusion 61 is inserted into the groove 633. When the driving member 41 drives the main body 431 to move, the second rack 43 moves towards the bottom plate 22, and the guide portion 432 also moves towards the bottom plate 22. In this way, the guide member 60 is pushed to move away from the first rack 42, which can drive the first smoke collecting member to open. When the second rack 43 moves in the opposite direction away from the base plate 22, the guide part 432 moves away from the base plate 22, so that the guide 60 is pulled to move closer to the first rack 42, thus driving the first smoke collection part to close.

[0082] Please see Figure 2 and Figure 5 In some embodiments, it also includes an oil collection tank 90 and a protective shell 91;

[0083] The oil collection trough 90 is detachably installed on one side of the base plate 22. The oil collection trough 90 is connected to the interior of the smoke collection hood 20 and is used to collect the oil fumes inside the smoke collection hood 20.

[0084] The protective shell 91 is fixedly installed on the smoke machine frame 10. The protective shell 91 has a receiving cavity 92, and the first rack 42 and the second rack 43 are both located in the receiving cavity 92.

[0085] Understandably, in order to protect the drive mechanism 40, a protective shell 91 is provided at the part where the drive component 41 meshes with the first rack 42 and the second rack 43. The protective shell 91 can be fixedly installed on the smoke machine frame 10 to protect the part where the drive component 41 meshes with the first rack 42 and the second rack 43.

[0086] Understandably, the oil collection tank 90 is detachably installed on the side of the base plate 22 near the wall, and the oil collection tank 90 is connected to the interior of the fume hood 20. When the oil fumes inside the fume hood 20 cool down, the resulting oil stains can be discharged into the oil collection tank 90 to collect the oil fumes inside the fume hood 20 for the purpose of treating the oil fumes.

[0087] Please see Figure 5 In some embodiments, it further includes: a first guide rail mechanism 70 and a second guide rail mechanism 80;

[0088] The first guide rail mechanism 70 includes a first slide rail 71 and a first slider 72, and the second guide rail mechanism 80 includes a second slide rail 81 and a second slider 82.

[0089] Both the first slider 72 and the second slider 82 are located on the side of the protective shell 91 away from the driving member 41. The first slide rail 71 is connected to the first rack 42, and the first rack 42 is connected to the smoke hood 20. The second slide rail 81 is connected to the second rack 43. A first limiting member 73 is provided on the side of the second slide rail 81 away from the base plate 22. A second limiting member 83 is provided on the first slide rail 71. The height of the first limiting member 73 along the first direction is higher than that of the second limiting member 83. When the second limiting member 83 abuts against the first limiting member 73, the second rack 43 drives the first rack 42 to move.

[0090] Understandably, the first guide rail mechanism 70 includes a first slide rail 71 and a first slider 72, and the second guide rail mechanism 80 includes a second slide rail 81 and a second slider 82. The first slider 72 and the second slider 82 are both fixedly mounted on both sides of the protective shell 91. Thus, the first slider 72 is fixed to the protective shell 91. At this time, the first rack 42 can drive the first slide rail 71 to move, and the first slide rail 71 is also connected to the smoke hood 20. When the first rack 42 moves, it can drive the first slide rail 71 to move, thereby driving the smoke hood 20 to move along the first direction. Since the toothed part of the first rack 42 is relatively short, when the first rack 42 reaches the preset position, the first rack 42 will not engage with the driving member 41, and the smoke hood 20 will no longer move.

[0091] A first limiting member 73 is provided on the side of the first slide rail 71 away from the base plate 22, that is, a limiting member is provided on the top of the first slide rail 71, and a second limiting member 83 is provided on the first rack 42. The height of the first limiting member 73 in the first direction is higher than the height of the second limiting member 83 in the first direction.

[0092] Because the engagement length between the second rack 43 and the drive member 41 is less than the engagement length between the first rack 42 and the drive member 41, when the first rack 42 rotates to the part without teeth, it stops rotating. When it needs to be driven to rotate in the opposite direction, the first rack 42 cannot engage with the drive member 41. However, the second rack 43 can engage with the drive member 41. When the second rack 43 moves, it drives the first slide rail 71 to move. The first limiting member 73, located on the first slide rail 71, abuts against the second limiting member 83 during its upward movement, and drives the second limiting member 83 to move upward. This allows the first rack 42 to move and engage with the drive member 41, thereby driving the smoke hood 20 to move upward.

[0093] In this utility model, 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 this utility model. 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 utility model can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this utility model can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this utility model, provided there is no contradiction between them.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model should not depart from the spirit and scope of the technical solution of this utility model.

Claims

1. A range hood, characterized in that, include: A smoke machine frame (10) is provided with a smoke duct; A smoke hood (20) is connected to the smoke machine frame (10). The bottom of the smoke hood (20) is provided with a smoke inlet (23), which is connected to the flue. A flow guiding component (30) is rotatably disposed inside the smoke hood (20), and the flow guiding component (30) can rotate along one side of the flow guiding component (30); A drive mechanism (40) is provided on the smoke machine frame (10). The drive mechanism (40) is connected to the smoke collection hood (20) and the flow guide assembly (30). The drive mechanism (40) is used to drive the smoke collection hood (20) to move along a first direction or a second direction, or to drive the flow guide assembly (30) to open or close.

2. The range hood according to claim 1, characterized in that, The smoke hood is fitted outside the smoke machine frame or inside the smoke machine frame.

3. The range hood according to claim 1, characterized in that, The flow guiding assembly (30) includes: a first flow guiding plate (31), a second flow guiding plate (32), a third flow guiding plate (33), and a fourth flow guiding plate (34); The first guide plate (31), the second guide plate (32), and the third guide plate (33) are arranged sequentially around the outer periphery of the fourth guide plate (34), with the first guide plate (31) and the third guide plate (33) spaced apart on opposite sides of the fourth guide plate (34); Among them, the first guide plate (31), the second guide plate (32), the third guide plate (33) and the fourth guide plate (34) form a flue.

4. The range hood according to claim 3, characterized in that, The first guide plate (31) and the third guide plate (33) gradually increase in size from the end closer to the drive mechanism (40) to the end farther away from the drive mechanism (40), and the fourth guide plate (34) is disposed on the side of the first guide plate (31) and the second guide plate (32) away from the drive mechanism (40).

5. The range hood according to claim 4, characterized in that, Also includes: Hinges (50); The smoke hood (20) has an installation port (21) on the side away from the drive mechanism (40), and the flow guide assembly (30) is disposed in the installation port (21). The flow guide assembly (30) is installed in the installation port (21) through the hinge (50).

6. The range hood according to claim 3, characterized in that, The smoke hood (20) has a base plate (22), and the smoke inlet (23) is disposed on the base plate (22); When the flow guiding component (30) is in the closed state, the fourth flow guiding plate (34) forms a first angle with the base plate (22); when the flow guiding component (30) is in the open state, the fourth flow guiding plate (34) forms a second angle with the base plate (22).

7. The range hood according to claim 6, characterized in that, The drive mechanism (40) includes: a drive member (41), a first rack (42), a second rack (43), and a guide member (60); The driving component (41) is mounted on the smoke machine frame (10), the first rack (42) is connected to the smoke collection hood (20), the second rack is connected to the fourth guide plate (34), and both the first rack (42) and the second rack (43) are engaged with the driving component (41). The second rack (43) is connected to the guide member (60) on the side near the fourth guide plate (34), and the other end of the guide member (60) is connected to the fourth guide plate (34) to drive the guide assembly (30) to be in an open or closed state. The engagement length of the first rack (42) with the drive member (41) is less than the engagement length of the second rack (43) with the drive member (41).

8. The range hood according to claim 7, characterized in that, The first rack (42) includes a main body (431) and a guide (432), the guide (432) having an angle with the main body (431); the guide (432) has a groove (633), and a protrusion (61) is provided at one end of the guide member (60) away from the fourth guide plate (34), the protrusion (61) cooperating with the groove (633).

9. The range hood according to claim 8, characterized in that, It also includes an oil collection tank (90) and a protective shell (91); The oil collection trough (90) is detachably disposed on one side of the base plate (22). The oil collection trough (90) is connected to the interior of the smoke collection hood (20) and is used to collect the oil fumes inside the smoke collection hood (20). The protective shell (91) is fixedly installed on the smoke machine frame (10). The protective shell (91) has a receiving cavity (92), and the first rack (42) and the second rack (43) are both located in the receiving cavity (92).

10. The range hood according to claim 9, characterized in that, Also includes: First guide rail mechanism (70) and second guide rail mechanism (80); The first guide rail mechanism (70) includes a first slide rail (71) and a first slider (72), and the second guide rail mechanism (80) includes a second slide rail (81) and a second slider (82); Both the first slider (72) and the second slider (82) are located on the side of the protective shell (91) away from the driving member (41). The first slide rail (71) is connected to the first rack (42), and the first rack (42) is connected to the smoke hood (20). The second slide rail (81) is connected to the second rack (43). A first limiting member (73) is provided on the side of the second slide rail (81) away from the base plate (22). A second limiting member (83) is provided on the first slide rail (71). The height of the first limiting member (73) along the first direction is higher than that of the second limiting member (83). When the second limiting member (83) abuts against the first limiting member (73), the second rack (43) drives the first rack (42) to move.

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