Range hood

Abstract

The present application relates to a kind of range hood.The range hood includes: smoke machine frame, smoke cover, smoke collection component, drive mechanism;The smoke machine frame is arranged outside the smoke cover, the smoke collection component is movably arranged in the two sides of the smoke cover, the drive mechanism is arranged on the smoke machine frame, the drive mechanism is connected with the smoke collection component, the smoke cover, the drive mechanism is used to drive the smoke cover displacement along the first direction and drive the smoke collection component switch between open state or closed state;Wherein, when the smoke collection component is in open state, the smoke collection component is located outside the smoke cover, when the smoke collection component is in closed state, the smoke collection component is located in the smoke cover.The range hood can improve the adsorbable area of range hood.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of range hood, in particular to a range hood. BACKGROUND

[0002] The range hood has become one of the indispensable equipment in modern family kitchen, with the application rate of the range hood being higher and higher, people pay more and more attention to the oil fume suction effect and installation aesthetics of the range hood. At present, in order to be beautiful, the area of the oil fume port of the lifting type range hood is fixed, which may cause the oil fume to escape. SUMMARY

[0003] In view of this, the present application provides a range hood, which can improve the adsorbable area of the range hood.

[0004] The present application provides the following technical solutions:

[0005] A range hood, comprising: a hood frame, a smoke gathering cover, a smoke collecting assembly, and a driving mechanism;

[0006] The smoke gathering cover is connected with the hood frame, the smoke collecting assembly is movably arranged on the smoke gathering cover, the driving mechanism is arranged on the hood frame, the driving mechanism is connected with the smoke collecting assembly and the smoke gathering cover, and the driving mechanism is used for driving the smoke gathering cover to displace along a first direction and driving the smoke collecting assembly to switch between an open state and a closed state.

[0007] When the smoke collecting assembly is in the open state, the smoke collecting assembly is located outside the smoke gathering cover, and when the smoke collecting assembly is in the closed state, the smoke collecting assembly is located inside the smoke gathering cover.

[0008] Further, the smoke gathering cover has oppositely arranged first and second side walls;

[0009] The smoke collecting assembly is arranged on the first side wall or the second side wall.

[0010] Further, the smoke collecting assembly comprises first and second smoke collecting members;

[0011] The smoke gathering cover has oppositely arranged first and second side walls, the first side wall is provided with a first mounting port, the second side wall is provided with a second mounting port, and the first smoke collecting port and the second mounting port are both provided with hinges;

[0012] The first smoke collecting member is arranged in the first smoke collecting port through the hinge, and the second smoke collecting member is arranged in the second mounting port.

[0013] Further, the first and second smoke collecting members each comprise first, second, third and fourth flow guide plates.

[0014] The first guide plate and the third guide plate are arranged on both sides of the second guide plate, and the fourth guide plate is connected with the first guide plate and the third guide plate respectively; wherein, the fourth guide plate forms a flue with the first guide plate, the second guide plate and the third guide plate.

[0015] Further, the smoke collecting cover has a bottom plate, and an air inlet is arranged on the bottom plate;

[0016] When the smoke collecting assembly is in the closed state, the fourth guide plate forms a first included angle a with the bottom plate; when the smoke collecting assembly is in the open state, the smoke collecting assembly forms a second included angle β with the bottom plate.

[0017] Further, the driving mechanism comprises a driving member, a first gear rack and a second gear rack;

[0018] The driving member is arranged on the smoke machine frame, the first gear rack is connected with the smoke collecting cover, the second gear rack is connected with the first smoke collecting member or the second smoke collecting member, and the first gear rack and the second gear rack are engaged with the driving member;

[0019] The engagement length of the first gear rack with the driving member is less than the engagement length of the second gear rack with the driving member.

[0020] Further, it further comprises a guide member;

[0021] One side of the second gear rack close to the smoke collecting assembly is connected with the guide member, and the other end of the guide member is connected with the first smoke collecting member or the second smoke collecting member, so as to drive the smoke collecting assembly to be in the open state or the closed state;

[0022] The second gear rack comprises a main body part and a guide part, and the guide part has an included angle with the main body part;

[0023] The guide part has a groove, one end of the guide member away from the smoke collecting assembly is provided with a protrusion, and the protrusion is matched with the groove.

[0024] Further, it further comprises a protective shell;

[0025] The protective shell is arranged on the smoke machine frame, and the protective shell has a containing cavity, and the first gear rack and the second gear rack are located in the containing cavity.

[0026] Further, it further comprises a first guide rail mechanism and a second guide rail mechanism;

[0027] The first guide rail mechanism comprises a first sliding rail and a first sliding block, and the second guide rail mechanism comprises a second sliding rail and a second sliding block;

[0028] The first slider and the second slider are arranged on the side of the protection shell away from the driving member, the first sliding rail is connected with the first rack, the first rack is connected with the smoke cover, the second sliding rail is connected with the second rack, the first limiting piece is arranged on the side of the second sliding rail away from the bottom plate, the second limiting piece is arranged on the first sliding rail, the height of the first limiting piece in the first direction is higher than that of the second limiting piece, and the second rack drives the first rack to move when the second limiting piece abuts against the first limiting piece.

[0029] Further, the oil collecting groove is further arranged on one side of the bottom plate and is in communication with the interior of the smoke cover for collecting oil fume in the interior of the smoke cover.

[0030] The oil collecting groove is arranged on one side of the bottom plate in a detachable manner, the oil collecting groove is in communication with the interior of the smoke cover, and is used for collecting oil fume in the interior of the smoke cover.

[0031] The oil fume extractor is provided with the smoke cover arranged on the smoke machine frame, the smoke cover is provided with the flue, the oil fume in the kitchen is discharged through the flue, the driving assembly is arranged on the smoke machine frame, the driving mechanism drives the smoke cover to move along the length direction of the smoke machine frame, the smoke collecting assembly is arranged on both sides of the smoke cover and is connected with the driving mechanism, the driving mechanism can drive the smoke collecting assembly to open or close, when the driving mechanism drives the smoke collecting assembly to open, the smoke collecting assembly arranged on both sides of the smoke cover extends from the smoke cover, the smoke collecting assembly is in communication with the flue in the interior of the smoke cover, so that the smoke collecting assembly can also absorb the oil fume in the kitchen, thereby improving the adsorption area of the oil fume extractor. When the driving mechanism drives the smoke collecting assembly to close, the smoke collecting assembly is located in the smoke cover, so that the space occupied by the oil fume extractor in the kitchen when not in use can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described in the following are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0033] Figure 1 One of the cross-sectional views of the oil fume extractor provided by the embodiments of the present application;

[0034] Figure 2 One of the partial structure schematic views of the oil fume extractor provided by the embodiments of the present application;

[0035] Figure 3 The second of the partial structure schematic views of the oil fume extractor provided by the embodiments of the present application;

[0036] Figure 4Structure schematic view of driving mechanism provided by the embodiment of the present application;

[0037] Figure 5 Structure schematic view of second rack provided by the embodiment of the present application;

[0038] Figure 6 Structure schematic view of driving mechanism provided by the embodiment of the present application;

[0039] Figure 7 Structure schematic view of driving mechanism provided by the embodiment of the present application; Figure 6 Enlarged view of A in the middle;

[0040] Figure 8 Sectional view of range hood provided by the embodiment of the present application;

[0041] Figure 9 Sectional view of range hood provided by the embodiment of the present application;

[0042] Figure 10 Structure schematic view of range hood provided by the embodiment of the present application;

[0043] Figure 11 Structure schematic view of range hood provided by the embodiment of the present application.

[0044] Explanation of reference signs:

[0045] 100 - range hood; 10 - range hood frame; 20 - smoke cover; 21 - first mounting port; 22 - second mounting port; 23 - bottom plate; 24 - air inlet; 30 - smoke collecting assembly; 31 - first smoke collecting member; 32 - second smoke collecting member; 33 - first guide plate; 34 - second guide plate; 35 - third guide plate; 36 - fourth guide plate; 40 - driving mechanism; 41 - driving member; 42 - first rack; 43 - second rack; 431 - main body part; 432 - guide part; 633 - groove; 50 - hinge; 60 - guide member; 61 - protrusion; 70 - first guide rail mechanism; 71 - first sliding rail; 72 - first sliding block; 73 - first limiting member; 80 - second guide rail mechanism; 81 - second sliding rail; 82 - second sliding block; 83 - second limiting member; 90 - oil collecting groove; 91 - protective shell; 92 - accommodating cavity. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the protection scope of the present application.

[0047] The terms "first", "second", and the like in the description and in the claims of the present application and above-described drawings are used to distinguish different objects, and are not used to describe a particular sequential order. Furthermore, the terms "comprises" and "comprising", and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that comprises a list of steps or units is not necessarily limited to the listed steps or units, but can optionally further include additional steps or units not listed, or can optionally further include other steps or units inherent to such process, method, product, or apparatus.

[0048] Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative implementations. It is expressly understood that the embodiments described herein are combinable with each other.

[0049] The range hood has become one of the indispensable equipment in modern family kitchen. With the increasing application rate of the range hood, people pay more and more attention to the oil fume suction effect and installation aesthetics of the range hood. At present, the area of the oil fume port of the lifting type range hood is fixed for aesthetics, which may cause the oil fume to escape.

[0050] And the lifting type range hood is now mostly lowered to the bottom, and cannot adjust the height of the range hood according to the actual situation of the smoke, which will affect some users with low kitchen height, so as to adjust the overall decoration of the kitchen for installing the range hood, which is not only not aesthetic, but also time-consuming and laborious.

[0051] For the convenience of subsequent description, the first direction in the present application refers to the direction indicated as X in Figure 1 and the direction opposite thereto, that is, the direction parallel to the range hood, and the second direction refers to the direction indicated as Y in the figure, that is, the direction indicated as Y in Figure 1 . Figure 1 .

[0052] In view of this, the present application provides a range hood 100, which can increase the adsorbable area of the range hood 100.

[0053] Please refer to Figure 1 , the present application provides a range hood 100, which comprises a hood frame 10, a smoke gathering cover 20, a smoke collecting assembly 30, and a driving mechanism 40.

[0054] The smoke machine frame 10 is arranged outside the smoke collection cover 20, the smoke collection assembly 30 is movably arranged on both sides of the smoke collection cover 20, the driving mechanism 40 is arranged on the smoke machine frame 10, the driving mechanism 40 is connected with the smoke collection assembly 30 and the smoke collection cover 20, and the driving mechanism 40 is used to drive the smoke collection cover 20 to displace along a first direction and drive the smoke collection assembly 30 to switch between an open state and a closed state.

[0055] When the smoke collection assembly 30 is in the open state, the smoke collection assembly 30 is located outside the smoke collection cover 20, and when the smoke collection assembly 30 is in the closed state, the smoke collection assembly 30 is located inside the smoke collection cover 20.

[0056] The above oil fume machine 100 is arranged with the smoke collection cover 20 on the smoke machine frame 10, the smoke collection cover 20 is provided with a flue, the oil fume in the kitchen is discharged through the flue, the driving assembly is arranged on the smoke machine frame 10, the driving mechanism 40 drives the smoke collection cover 20 to move along the length direction of the smoke machine frame 10, the smoke collection assembly 30 is arranged on both sides of the smoke collection cover 20, the smoke collection assembly 30 is also connected with the driving mechanism 40, the driving mechanism 40 can drive the smoke collection assembly 30 to open or close, when the driving mechanism 40 drives the smoke collection assembly 30 to open, the smoke collection assembly 30 arranged on both sides of the smoke collection cover extends from the smoke collection cover, the smoke collection assembly 30 communicates with the flue inside the smoke collection cover, so that the smoke collection assembly 30 can also absorb the oil fume in the kitchen, thereby improving the adsorption area of the oil fume machine 100. When the driving mechanism 40 drives the smoke collection assembly 30 to close, the smoke collection assembly 30 is located inside the smoke collection cover 20, so that the space occupied by the oil fume machine 100 in the kitchen when not in use can be reduced.

[0057] It can be understood that the smoke machine frame 10 is fixedly arranged on the wall of the kitchen, the smoke collection cover 20 is arranged outside the smoke machine frame 10, the driving mechanism 40 is arranged on the smoke machine frame 10, the driving mechanism 40 is used to drive the smoke collection cover 20 to move along the first direction, that is, to move up and down along the length direction of the smoke machine frame 10; in the working state (when in use), the driving mechanism 40 drives the smoke collection cover 20 to move along the first direction, so that the oil fume machine 100 is located at the working position, that is, the smoke collection cover 20 is close to the cooking bench, so that the smoke collection cover 20 can better discharge the oil fume in the kitchen through the oil fume machine 100; in the non-working state (after use), the driving mechanism 40 drives the smoke collection cover 20 to move along the direction opposite to the first direction, that is, the smoke collection cover 20 is away from the cooking bench, so that the use space of the cooking bench can be improved. At the same time, the space occupied by the oil fume machine 100 in the kitchen can be reduced, and the space utilization rate in the kitchen can be improved.

[0058] It can be understood that the smoke collecting assembly 30 is arranged on the left and right sides of the smoke collecting cover 20, the driving mechanism 40 is connected with the smoke collecting assembly 30, and the driving mechanism 40 is connected with the smoke collecting assembly 30 to drive the smoke collecting assembly 30 to open or close; when working is needed, the smoke collecting cover 20 is in the working state, and the smoke collecting assembly 30 is opened to work together with the smoke collecting cover 20 to exhaust the oil fume in the kitchen, so that the smoke suction area of the oil fume extractor 100 is increased, and the oil fume escape is reduced.

[0059] In some embodiments, the smoke collecting cover 20 has a first side wall and a second side wall arranged oppositely; and the smoke collecting assembly 30 is arranged on the first side wall or the second side wall.

[0060] It can be understood that the smoke collecting cover 20 has a first side wall and a second side wall arranged oppositely, and the smoke collecting assembly 30 is arranged on the first side wall or the second side wall. By arranging the smoke collecting assembly 30 on one side of the smoke collecting cover 20, the smoke collecting function of the oil fume extractor 100 can be realized by exhausting the oil fume from the oil fume extractor 100 through the smoke collecting assembly 30.

[0061] In some embodiments, the smoke collecting assembly 30 has a first smoke collecting part 31 and a second smoke collecting part 32.

[0062] The smoke collecting cover 20 has a first side wall and a second side wall arranged oppositely, the first side wall is provided with a first mounting port 21, the second side wall is provided with a second mounting port 22, and the first mounting port 21 and the second mounting port 22 are both provided with a hinge 50.

[0063] The first smoke collecting part 31 is arranged on the first smoke collecting port 21 through the hinge 50, and the second smoke collecting part 32 is arranged on the second mounting port 22.

[0064] It can be understood that the smoke collecting cover 20 has a first side wall and a second side wall arranged oppositely, and the smoke collecting assembly 30 is arranged on the first side wall and the second side wall. The first smoke collecting part 31 and the second smoke collecting part 32 of the smoke collecting assembly 30 on the two sides of the smoke collecting cover 20 are used to extract the oil fume, so that the oil fume in the kitchen can be better exhausted through the oil fume extractor 100.

[0065] Specifically, the smoke collecting assembly 30 comprises a first smoke collecting member 31 and a second smoke collecting member 32. In order to facilitate the installation of the first smoke collecting member 31 and the second smoke collecting member 32, a first mounting opening 21 and a second mounting opening 22 are arranged on the first side wall, and a hinge 50 is arranged on the first mounting opening 21 and the second mounting opening 22. The first smoke collecting member 31 is connected through the hinge 50, so that the first smoke collecting member 31 can rotate in the first mounting opening 21 to open or close the first mounting opening 21. Similarly, the second smoke collecting member 32 is connected through the hinge 50, so that the second smoke collecting member 32 can rotate in the second mounting opening 22 to open or close the second mounting opening 22. In this way, the opening or closing of the range hood 100 can be realized.

[0066] Please refer to Figure 2 and Figure 3 The first smoke collecting member 31 and the second smoke collecting member 32 each comprise a first flow guide plate 33, a second flow guide plate 34, a third flow guide plate 35, and a fourth flow guide plate 36.

[0067] The first flow guide plate 33 and the third flow guide plate 35 are arranged on both sides of the second flow guide plate 34, and the fourth flow guide plate 36 is connected with the first flow guide plate 33 and the third flow guide plate 35 on both sides. The fourth flow guide plate 36 is formed between the first flow guide plate 33, the second flow guide plate 34, and the third flow guide plate 35.

[0068] It can be understood that the first smoke collecting member 31 and the second smoke collecting member 32 each comprise a first flow guide plate 33, a second flow guide plate 34, a third flow guide plate 35, and a fourth flow guide plate 36. The first flow guide plate 33 and the third flow guide plate 35 are arranged on both sides of the second flow guide plate 34, so that the first flow guide plate 33, the second flow guide plate 34, and the third flow guide plate 35 form a flow guide groove. The first flow guide plate 33 and the third flow guide plate 35 are movably connected with the smoke collecting cover 20. Therefore, the first smoke collecting member 31 can be opened or closed. After the first smoke collecting member 31 is installed on the smoke collecting cover, the first flow guide plate 33, the second flow guide plate 34, and the third flow guide plate 35 form a flue with the smoke collecting cover. The oil fume enters the smoke collecting cover 20 through the flue to realize the collection of the oil fume.

[0069] It can be understood that the fourth guide plate 36 is arranged on the smoke guide groove surrounded by the first guide plate 33, the second guide plate 34 and the third guide plate 35, the fourth guide plate 36 is connected with the first guide plate 33, the second guide plate 34 and the third guide plate 35, and there is a gap between the fourth guide plate 36 and the first guide plate 33, the second guide plate 34 and the third guide plate 35, that is, a flue is formed between the fourth guide plate 36 and the first guide plate 33, the second guide plate 34 and the third guide plate 35, and oil fume can enter the smoke cover 20 through the gap between the fourth guide plate 36 and the first guide plate 33, the second guide plate 34 and the third guide plate 35, that is, the collection of oil fume is realized.

[0070] Please refer to Figure 8 and Figure 9 In some embodiments, the smoke cover 20 has a bottom plate 23, and the bottom plate 23 is provided with an air inlet 24.

[0071] When the smoke collecting assembly 30 is in a closed state, the fourth guide plate 36 forms a first included angle a with the bottom plate 23; when the smoke collecting assembly 30 is in an open state, the smoke collecting assembly 30 forms a second included angle β with the bottom plate 23.

[0072] Please refer to Figure 8 It can be understood that the bottom of the smoke cover 20 is provided with a bottom plate 23, and the bottom plate 23 is provided with an air inlet 24, which is an oil fume inlet, oil fume enters the smoke cover 20 through the air inlet 24, and then is discharged by the smoke cover 20, so that the collection of oil fume is realized. When the smoke collecting assembly 30 is closed, the fourth guide plate 36 on the first smoke collecting part 31 and the second smoke collecting part 32 forms a first included angle a with the bottom plate 23. When the smoke collecting assembly 30 is closed, the first smoke collecting part 31 and the second smoke collecting part 32 are located in the smoke cover 20. At this time, the fourth guide plate 36 in the first smoke collecting part 31 and the fourth guide plate 36 in the second smoke collecting part 32 are located above the bottom plate 23, and the fourth guide plate 36 in the first smoke collecting part 31 and the fourth guide plate 36 in the second smoke collecting part 32 form a first included angle a, wherein the angle of the first included angle a is 20°-50°, and it can be specifically 20°, 25°, 30°, 35°, 40°, 45°, 50° or other angles.

[0073] The first included angle a will affect the size of the oil fume suction corresponding to the bottom plate 23 part; specifically, in the closed state of the smoke collecting assembly 30, the larger the angle of the first included angle a, the smaller the spacing between the two guide plates, so that the relative airflow velocity can be accelerated, and the negative pressure caused by the range hood 100 is relatively large; its use scene is when the oil smoke amount is small, specifically, in the case of small oil smoke amount, it does not need a large smoke suction area, but needs a large negative pressure, the first included angle a formed by the fourth guide plate 36 in the first smoke collecting piece 31 and the fourth guide plate 36 in the second smoke collecting piece 32 so that the range hood 100 can also suck as much oil smoke as possible into the range hood 100 when the oil smoke amount is small, thereby reducing the occurrence of oil smoke escape.

[0074] In the closed state of the smoke collecting assembly 30, the smaller the angle of the first included angle a, the larger the spacing between the two guide plates, so that the airflow velocity is relatively small, and the negative pressure space caused by the range hood 100 is relatively large, its use scene is when the oil smoke amount is large, specifically, when the oil smoke amount is large, a large smoke inlet area is needed to exhaust the oil smoke, therefore, the larger gap between the fourth guide plate 36 in the first smoke collecting piece 31 and the fourth guide plate 36 in the second smoke collecting piece 32 can make the oil smoke be discharged from the flue more quickly, so as to improve the exhaust efficiency of the range hood 100.

[0075] Please refer to Figure 9 When the smoke collecting assembly 30 is unfolded, the fourth guide plate 36 on the first smoke collecting piece 31 and the second smoke collecting piece 32 forms a second included angle β with the bottom plate 23, wherein the angle of the second included angle β is 100°-160°, which can be specifically 100°, 105°, 110°, 120°, 125°, 130°, 135°, 140°, 145°, 150°, 155°, 160° and other angles.

[0076] The second included angle β also affects the smoke gathering area of the smoke gathering assembly 30. Specifically, when the second included angle β is smaller, the first smoke gathering part 31 and the second smoke gathering part 32 are more completely unfolded, so that the smoke gathering area of the smoke gathering assembly 30 is larger, which can effectively reduce the escape of the oil fume. When the second included angle β is larger, the first smoke gathering part 31 and the second smoke gathering part 32 are relatively incompletely unfolded, and the smoke gathering area is relatively small. Specifically, in the opened state of the smoke gathering assembly 30, the first smoke gathering part 31 and the second smoke gathering part 32 are located on both sides of the smoke gathering hood 20. At this time, the fourth guide plate 36 is no longer located above the bottom plate 23, and the flue corresponding to the part of the bottom plate 23 is completely opened. Most of the oil fume can be discharged through the smoke gathering hood 20, and the first smoke gathering part 31 and the second smoke gathering part 32 on both sides of the smoke gathering hood 20 can absorb the smoke diffused from around the smoke gathering hood 20. Thus, the smoke suction area of the range hood 100 can be increased to reduce the escape of the oil fume and improve the smoke exhaust efficiency of the range hood 100.

[0077] Please refer to Figures 4 to 6 In some embodiments, the driving mechanism 40 comprises a driving part 41, a first gear rack 42, and a second gear rack 43.

[0078] The driving part 41 is arranged on the smoke machine frame 10, the first gear rack 42 is connected with the smoke gathering hood 20, the second gear rack is connected with the first smoke gathering part 31 or the second smoke gathering part 32, and the first gear rack 42 and the second gear rack 43 are engaged with the driving part 41.

[0079] The engagement length of the first gear rack 42 with the driving part 41 is greater than the engagement length of the second gear rack 43 with the driving part 41.

[0080] It can be understood that the above-mentioned driving mechanism 40 can be provided with two sets, which are respectively arranged on the opposite sides of the smoke machine frame 10. The following content is described by taking one side as an example.

[0081] Specifically, the driving mechanism 40 comprises a driving part 41, a first gear rack 42, and a second gear rack 43. The driving part 41 is fixedly arranged on the smoke machine frame 10, the first gear rack 42 is connected with the smoke gathering hood 20, the second gear rack 43 is connected with the first smoke gathering part 31, and the first gear rack 42 and the second gear rack 43 are engaged with the driving part 41. When the driving part 41 rotates, the first gear rack 42 and the second gear rack 43 are driven to move, thereby driving the smoke gathering hood 20 to move in the first direction and driving the driving part 41 to unfold.

[0082] The meshing length of the first rack 42 with the driving member 41 is greater than the meshing length of the second rack 43 with the driving member 41, so that the range hood 100 can be lowered when the amount of oil fume is small, and the range hood 100 can work to adsorb oil fume without the first smoke collecting member 31 and the second smoke collecting member 32 being unfolded after being lowered to the preset position.

[0083] It can be understood that the driving member 41 is provided with a driving gear on the rotating shaft, and the driving gear is driven to rotate when the rotating shaft rotates, and then the first rack 42 and the second rack 43 are driven to rotate.

[0084] Please refer to Figure 3 In some embodiments, further comprising a guide member 60;

[0085] The second rack 43 is connected with the guide member 60 on one side close to the smoke collecting assembly 30, and the other end of the guide member 60 is connected with the first smoke collecting member 31 or the second smoke collecting member 32 to drive the smoke collecting assembly 30 to be in the open state or the closed state;

[0086] The second rack 43 comprises a main body part 431 and a guide part 432, and the guide part 432 has an included angle with the main body part 431;

[0087] The guide part 432 has a groove 633, and the guide member 60 is provided with a protrusion 61 away from the smoke collecting assembly 30, and the protrusion 61 cooperates with the groove 633.

[0088] It can be understood that the first smoke collecting member 31 is unfolded in the embodiment, and specifically, the guide member 60 is used to drive the first smoke collecting member 31 to be unfolded, and the guide member 60 is provided in an arc shape, one end of which is slidably connected with the second rack 43, and the other end of which is connected with the first smoke collecting member 31. When the driving member 41 drives the second rack 43 to rotate, the second rack 43 moves in the first direction, so that the second rack 43 drives the guide member 60 to move, and then drives the first smoke collecting member 31 to be unfolded. When the first smoke collecting member 31 is closed, the second rack 43 moves away from the first smoke collecting member 31, and the second rack 43 drives the guide member 60 to move, so that the first smoke collecting member 31 is in the closed state.

[0089] It can be understood that the second rack 43 has a main body part 431 and a guide part 432, the main body part 431 and the guide part 432 form an included angle, wherein the main body part 431 is the part that the driving part 41 can drive, and the guide part 432 is used to cooperate with the guide part 60; specifically, the guide part 432 is provided with a groove 633, and the side of the guide part 60 away from the smoke collecting part is provided with a protrusion 61, the protrusion 61 is clamped into the groove 633, so that when the driving part 41 drives the main body part 431 to move, the second rack 43 moves towards the first smoke collecting part 31, the guide part 432 also moves towards the first smoke collecting part 31, so that the guide part 60 is pushed to move away from the part of the first rack 42, so that the first smoke collecting part 31 can be driven to open. When the second rack 43 moves in the opposite direction away from the first smoke collecting part 31, the guide part 432 moves away from the first smoke collecting part 31, so that the guide part 60 is pulled to move towards the part of the first rack 42, so that the first smoke collecting part 31 can be driven to close.

[0090] Please refer to Figure 4 In some embodiments, further comprising: a protective shell 91;

[0091] The protective shell 91 is arranged on the smoke machine frame 10, and the protective shell 91 has a containing cavity 92, and the first rack 42 and the second rack 43 are located in the containing cavity 92.

[0092] It can be understood that in order to protect the driving mechanism 40, the protective shell 91 is arranged on the part where the driving part 41 is engaged with the first rack 42 and the second rack 43, and the protective shell 91 can be arranged on the smoke machine frame 10 by fixed arrangement, so as to protect the part where the driving part 41 is engaged with the first rack 42 and the second rack 43.

[0093] Please refer to Figure 6 And Figure 7 In some embodiments, further comprising: a slide rail;

[0094] The first guide rail mechanism 70 and the second guide rail mechanism 80; the first guide rail mechanism 70 comprises a first slide rail 71 and a first slide block 72, and the second guide rail mechanism 80 comprises a second slide rail 81 and a second slide block 82;

[0095] The first slider 72 and the second slider 82 are arranged on the side of the protection shell 91 away from the driving member 41, the first sliding rail 71 is connected with the first rack 42, the first rack 42 is connected with the smoke cover 20, the second sliding rail 81 is connected with the second rack 43, the first limiting member 73 is arranged on the side of the second sliding rail 81 away from the bottom plate 23, the second limiting member 83 is arranged on the first sliding rail 71, the height of the first limiting member 73 in the first direction is higher than the height 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.

[0096] It can be understood that the first guide rail mechanism 70 includes the first sliding rail 71 and the first slider 72, and the second guide rail mechanism 80 includes the second sliding rail 81 and the second slider 82, wherein the first slider 72 and the second slider 82 are fixedly arranged on the two sides of the protection shell 91, so that the first slider 72 is fixed on the protection shell 91, at this time, the first rack 42 can drive the first sliding rail 71 to move, and the first sliding rail 71 is also connected with the smoke cover 20, when the first rack 42 moves, the first sliding rail 71 is driven to move, and the smoke cover 20 is further driven to move in the first direction, because the part of the first rack 42 provided with the teeth is short, when the first rack 42 reaches the preset position, the first rack 42 is not engaged with the driving member 41, at this time, the smoke cover 20 will not move any more.

[0097] The first limiting member 73 is arranged on the side of the sliding rail away from the bottom plate 23, that is, the limiting member is arranged on the top of the sliding rail, the second limiting member 83 is arranged on the first rack 42, and 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.

[0098] Because the engagement length of the second rack 43 with the driving member 41 is smaller than the engagement length of the first rack 42 with the driving member 41, when the first rack 42 rotates to the part without teeth, the first rack 42 stops rotating, when it is needed to drive the first rack 42 to rotate in the reverse direction, the first rack 42 cannot be engaged with the driving member 41. However, the second rack 43 can be engaged with the driving member 41, when the second rack 43 moves, the first sliding rail 71 is driven to move, the first limiting member 73 arranged on the first sliding rail 71 abuts against the second limiting member 83 in the process of moving upward, and drives the second limiting member 83 to move upward, so that the first rack 42 is driven to move and is engaged with the driving member 41, so as to drive the smoke cover 20 to move upward.

[0099] Please refer to Figure 9 In some embodiments, further comprising an oil collecting groove 90.

[0100] The oil collecting groove 90 is detachably arranged on one side of the bottom plate 23, and the oil collecting groove 90 is communicated with the inside of the smoke collecting cover 20, and is used for collecting the oil fume in the inside of the smoke collecting cover 20.

[0101] It can be understood that the oil collecting groove 90 is detachably arranged on one side of the bottom plate 23 close to the wall, and the oil collecting groove 90 is communicated with the inside of the smoke collecting cover 20, and the oil dirt produced after the oil fume in the inside of the smoke collecting cover 20 is cooled can be discharged into the oil collecting groove 90, so that the oil fume in the smoke collecting cover 20 is collected, and the oil fume is conveniently treated.

[0102] The closing state of the smoke collecting assembly in the oil fume exhauster of the present application is shown in Figure 10 The opening state of the smoke collecting assembly in the oil fume exhauster of the present application is shown in Figure 11 .

[0103] In the present application, the phrase "embodiment" or "embodiments" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily mean the same embodiment, nor is it independent or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments. In addition, it should be understood that the features, structures or characteristics described in the embodiments of the present application can be combined with each other without contradiction, to form another embodiment of the present application without departing from the spirit and scope of the technical solution of the present application.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A range hood, characterized in that, include: Smoke machine frame (10), smoke hood (20), smoke collection assembly (30), drive mechanism (40); The smoke machine frame (10) is connected to the smoke collection hood (20), the smoke collection assembly (30) is movably disposed on the smoke collection hood (20), the drive mechanism (40) is disposed on the smoke machine frame (10), the drive mechanism (40) is connected to the smoke collection assembly (30) and the smoke collection hood (20), and the drive mechanism (40) is used to drive the smoke collection hood (20) to move along a first direction and drive the smoke collection assembly (30) to switch between an open state and a closed state; When the smoke collection component (30) is in the open state, the smoke collection component (30) is located outside the smoke collection hood (20); when the smoke collection component (30) is in the closed state, the smoke collection component (30) is located inside the smoke collection hood (20). The smoke collection assembly (30) includes: a first smoke collection element (31) and a second smoke collection element (32); The smoke hood (20) has a first side wall and a second side wall arranged opposite to each other. A first mounting port (21) is provided on the first side wall, and a second mounting port (22) is provided on the second side wall. A hinge (50) is provided in both the first mounting port (21) and the second mounting port (22). The first smoke collector (31) is mounted on the first mounting port (21) via a hinge (50), and the second smoke collector (32) is mounted on the second mounting port (22) via a hinge (50). The smoke hood (20) has a base plate (23) and an air inlet (24) is provided on the base plate (23). The drive mechanism (40) includes: a drive member (41), a first rack (42), and a second rack (43); The driving component (41) is mounted on the smoke machine frame (10), the first rack (42) is connected to the smoke hood (20), the second rack is connected to the first smoke collector (31) or the second smoke collector (32), and both the first rack (42) and the second rack (43) are engaged with the driving component (41); Wherein, 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); Also includes: protective case (91); The protective shell (91) is disposed on the smoke machine frame (10), and the protective shell (91) has a receiving cavity (92) inside, and the first rack (42) and the second rack (43) are both located inside the receiving cavity (92); It also includes: a first guide rail mechanism (70) and a 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). The first slider (72) and the second slider (82) are both 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), the first rack (42) is connected to the smoke hood (20), and 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 bottom plate (23). 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.

2. The range hood according to claim 1, characterized in that, The first smoke collecting device (31) and the second smoke collecting device (32) both include: a first guide plate (33), a second guide plate (34), a third guide plate (35) and a fourth guide plate (36); The first guide plate (33) and the third guide plate (35) are disposed on both sides of the second guide plate (34), and the two sides of the fourth guide plate (36) are respectively connected to the first guide plate (33) and the third guide plate (35); wherein, the fourth guide plate (36) forms a flue with the first guide plate (33), the second guide plate (34) and the third guide plate (35).

3. The range hood according to claim 2, characterized in that, When the smoke collection assembly (30) is in the closed state, the fourth guide plate (36) and the base plate (23) form a first included angle α; when the smoke collection assembly (30) is in the open state, the fourth guide plate (36) and the base plate (23) form a second included angle β.

4. The range hood according to claim 3, characterized in that, Also includes: Guide component (60); The second rack (43) is connected to the guide (60) on the side near the smoke collection assembly (30), and the other end of the guide (60) is connected to the first smoke collection component (31) or the second smoke collection component (32) to drive the smoke collection assembly (30) to be in an open or closed state. The second rack (43) includes a main body (431) and a guide (432), wherein the guide (432) and the main body (431) have an angle. The guide portion (432) has a groove (633), and the guide member (60) has a protrusion (61) at one end away from the smoke collection assembly (30), the protrusion (61) cooperating with the groove (633).

5. The range hood according to claim 4, characterized in that, Also includes: Oil collection tank (90); The oil collection trough (90) is detachably disposed on one side of the base plate (23). The oil collection trough (90) is connected to the interior of the smoke hood (20) and is used to collect the oil fumes inside the smoke hood (20).

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