A range hood

Abstract

The present invention relates to the technical field of kitchen appliances, and in particular to a range hood, which comprises a housing, a smoke hood assembly, a connecting rod assembly, a linkage assembly, and a driving member. The smoke hood assembly comprises an upper baffle, a smoke collecting plate, and a lower baffle. The smoke collecting plate is connected to the upper baffle by a connecting rod assembly, and the lower baffle is connected to the upper baffle by a linkage assembly. The driving member can drive the upper baffle and the smoke collecting plate to rotate through the connecting rod assembly, and the upper baffle can drive the lower baffle to rotate through the linkage assembly, so that the smoke hood assembly switches between a closed state and an open state. The present invention adopts a single driving member, combined with the connecting rod assembly and the linkage assembly, to realize the opening and closing movement of the smoke hood assembly, with low cost. Moreover, when the smoke hood assembly is in the open state, the opening angle of the smoke collecting plate is greater than the opening angle of the upper baffle, and the lower baffle can also rotate and open a certain angle. In this way, the area of the smoke collecting area formed by the smoke collecting plate and the lower baffle is relatively large, the smoke collecting effect is good, and the suction force is not reduced.

Description

Technical Field

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

[0002] Range hoods are electrical appliances widely used in kitchens, used to exhaust the fumes generated during cooking on stoves. In some thin range hoods, a flap is provided at one end of the smoke collection mechanism close to the fumes. In the prior art, when the ultra-thin range hood is not in operation, the flap is close to the smoke collection mechanism, which plays a certain protective role for the smoke collection mechanism and reduces the volume of the ultra-thin range hood. In the operating state, in order to prevent the fumes from escaping, the flap is rotated to open the air intake duct, and at the same time, the flap forms a certain angle with the smoke collection mechanism, and the smoke collection mechanism collects and exhausts the fumes. However, when this flap is opened, the entire flap severely blocks the operator's line of sight, and the smoke intake port is far away from the center area of the stove where the fumes are generated. In addition, in order to avoid the flap from excessively blocking the line of sight, the flip angle is limited, resulting in a poor smoke collection effect. Summary of the Invention

[0003] The object of the present invention is to provide a range hood which has a good smoke collection effect and does not reduce the suction power.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A range hood, comprising:

[0006] Box;

[0007] The smoke collecting hood assembly includes an upper baffle, a smoke collecting plate and a lower baffle, wherein the upper end of the upper baffle is hinged to the upper end of the box body via an upper rotating shaft, the smoke collecting plate and the upper baffle are connected via a connecting rod assembly, the lower end of the lower baffle is hinged to the lower end of the box body via a lower rotating shaft, and the lower baffle and the upper baffle are connected via a linkage assembly;

[0008] A driving member is connected to a connecting rod in the connecting rod assembly, and the driving member can drive the upper baffle and the smoke collecting plate to rotate through the connecting rod assembly, and the upper baffle can drive the lower baffle to rotate through the linkage assembly, so that the smoke collection hood assembly can be switched between a closed state and an open state.

[0009] Optionally, when the smoke hood assembly is in the closed state, the upper baffle, the smoke collecting plate and the lower baffle are all in a vertical state, and the upper baffle and the smoke collecting plate are arranged side by side in the vertical direction, and the lower baffle is located on the inner side of the upper baffle and the smoke collecting plate; when the smoke hood assembly is in the open state, the upper baffle and the smoke collecting plate open around the upper rotating shaft, and the opening angle of the smoke collecting plate is greater than the opening angle of the upper baffle, and the lower baffle opens around the lower rotating shaft, and a smoke collecting area is formed between the smoke collecting plate and the lower baffle.

[0010] Optionally, the linkage assembly includes a slide rail and a linkage bracket, the slide rail is arranged on the upper baffle, one end of the linkage bracket is slidably connected to the slide rail, and the other end of the linkage bracket is hinged to the lower baffle.

[0011] Optionally, the slide rail includes a fixed frame, a ball bracket, a ball and a slider, the ball is arranged on the ball bracket, the ball bracket can slide relative to the fixed frame, and the slider can slide relative to the ball bracket, and the linkage bracket is connected to the slider.

[0012] Optionally, two first limiting bosses are provided on the upper end surface of the ball bracket along its sliding direction, and two second limiting bosses are provided on the lower end surface of the slider along its sliding direction. The two first limiting bosses correspond one-to-one to the two second limiting bosses to limit the movement of the slider in two directions.

[0013] Optionally, the number of the slide rails is two, the number of the linkage bracket is one, the two slide rails are respectively arranged on the upper baffle and the side plate vertically connected to the upper baffle, and the linkage bracket is slidably connected to the two slide rails at the same time.

[0014] Optionally, an inclined plate is provided in the box body and is arranged opposite to the side plate. An angle is formed between the inclined plate and the side plate, and a distance between the inclined plate and the side plate gradually decreases along the opening direction of the upper baffle.

[0015] Optionally, the connecting rod assembly includes a first fixed bracket, a first connecting rod a, a first connecting rod b, a second fixed bracket, a second connecting rod a and a second connecting rod b, the first fixed bracket and the second fixed bracket are respectively fixed to the upper baffle and the smoke collecting plate, one end of the first connecting rod a is hinged to the first fixed bracket, the other end of the first connecting rod a is hinged to one end of the first connecting rod b, and the other end of the first connecting rod b is hinged to the second fixed bracket; one end of the second connecting rod a is hinged to the second fixed bracket, the other end of the second connecting rod a is hinged to one end of the second connecting rod b, and the other end of the second connecting rod b is hinged to the first fixed bracket, and the first connecting rod b is hinged to the second connecting rod b, and the driving member is drivingly connected to the second connecting rod b.

[0016] Optionally, a through hole is provided on the second connecting rod b and passes through the second connecting rod b in the thickness direction thereof, the first connecting rod b is cross-connected with the through hole, and the second connecting rod b and the first connecting rod b are hinged at the intersection.

[0017] Optionally, the driving member is an electric push rod.

[0018] Beneficial effects of the present invention:

[0019] The range hood provided by the embodiment of the present invention adopts a single driving component, combined with a connecting rod assembly and a linkage assembly, to realize the opening and closing movement of the smoke collection hood assembly, and the cost is low; and when the smoke collection hood assembly is in the open state, the opening angle of the smoke collection plate is greater than the opening angle of the upper baffle, and the lower baffle will also rotate and open a certain angle, so that the area of the smoke collection area formed by the smoke collection plate and the lower baffle is relatively large, and the smoke collection effect is good, and because the opening angle of the upper baffle is small, the suction force will not be reduced under the cover of the upper baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the range hood provided by the embodiment of the present invention in the closed state. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the range hood provided by the embodiment of the present invention in the open state. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the structure of the range hood provided by the embodiment of the present invention in the closed state. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the structure of the range hood provided by the embodiment of the present invention in the open state. Figure 2 ;

[0024] Figure 51 is a schematic structural diagram of the linkage assembly, the upper baffle, and the lower baffle involved in an embodiment of the present invention when not opened;

[0025] Figure 6 1 is a schematic structural diagram of the linkage assembly, upper baffle and lower baffle involved in an embodiment of the present invention when they are opened;

[0026] Figure 7 is a schematic structural diagram of the linkage components involved in an embodiment of the present invention;

[0027] Figure 8 Schematic diagram of the structure of the slide rail involved in the embodiment of the present invention;

[0028] Figure 9 is a schematic structural diagram of a reinforcing rib structure involved in an embodiment of the present invention;

[0029] Figure 10 Schematic diagram of the structure of the side plate and the inclined plate involved in the embodiment of the present invention;

[0030] Figure 11 1 is a schematic structural diagram of a driving member and a connecting rod assembly involved in an embodiment of the present invention;

[0031] Figure 12 This is a schematic diagram of the structure of the connecting rod assembly involved in the embodiment of the present invention. Figure 1 ;

[0032] Figure 13 This is a schematic diagram of the structure of the connecting rod assembly involved in the embodiment of the present invention. Figure 2 ;

[0033] Figure 14 This is a schematic diagram of the structure of the connecting rod assembly involved in the embodiment of the present invention. Figure 3 ;

[0034] Figure 15 This is a schematic diagram of the structure of the connecting rod assembly involved in the embodiment of the present invention. Figure 4 ;

[0035] Figure 16 is a structural schematic diagram of the range hood provided by an embodiment of the present invention in a closed state from another perspective;

[0036] Figure 17 is a cross-sectional view of a range hood provided by an embodiment of the present invention;

[0037] Figure 18 Schematic diagram of the structure of the oil cup involved in the embodiment of the present invention;

[0038] Figure 19 yes Figure 18 A partial enlarged view of point B in the middle;

[0039] Figure 20 yes Figure 17 A partial enlarged view of point A in the middle.

[0040] In the picture:

[0041] 10. Box body; 11. Inclined plate;

[0042] 20. Fume hood assembly; 21. Upper baffle; 211. Upper shaft; 212. Side panel; 22. Smoke collecting plate; 23. Lower baffle; 231. Lower shaft; 232. Avoidance hole; 24. Oil screen;

[0043] 30. Linkage assembly; 31. Slide rail; 311. Fixing bracket; 312. Ball bearing bracket; 3121. First limiting boss; 313. Ball bearing; 314. Slider; 3141. Second limiting boss; 32. Linkage bracket; 321. Flat plate; 322. Arc bracket; 33. Linkage pin;

[0044] 40. Connecting rod assembly; 41. First fixing bracket; 411. First mounting hole; 412. First hinge axis; 413. Second hinge axis; 414. First limiting surface; 415. Second limiting surface; 42. Second fixing bracket; 421. Second mounting hole; 422. Third hinge axis; 423. Fourth hinge axis; 43. First connecting rod a; 44. First connecting rod b; 45. Second connecting rod a; 46. Second connecting rod b; 461. Fifth hinge axis; 462. Sixth hinge axis;

[0045] 50. Driving parts;

[0046] 60. Oil cup; 61. Oil cup body; 62. Buckle assembly; 621. Button; 622. First return spring; 623. First transmission rod; 624. Second transmission rod; 625. Buckle; 6251. Hook portion; 626. Second return spring;

[0047] 70. Impeller;

[0048] 80. Oil collecting pan;

[0049] 90. Gravity sensor. DETAILED DESCRIPTION

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0052] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0053] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0054] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0056] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0057] like Figures 1 to 20 As shown, an embodiment of the present invention provides a range hood, comprising a housing 10, a smoke hood assembly 20, a connecting rod assembly 40, a linkage assembly 30 and a driving member 50, wherein an air suction port is provided on the front side of the housing 10; the smoke hood assembly 20 is used to open and close the air suction port, and the smoke hood assembly 20 comprises an upper baffle 21, a smoke collecting plate 22 and a lower baffle 23, the upper end of the upper baffle 21 is hinged to the upper end of the housing 10 through an upper rotating shaft 211, and the smoke collecting plate 22 is hinged to the upper baffle 21. The lower baffle 23 is connected to the upper baffle 21 by a connecting rod assembly 40, and the lower end of the lower baffle 23 is hinged to the lower end of the box body 10 by a lower rotating shaft 231. The lower baffle 23 is connected to the upper baffle 21 by a linkage assembly 30. The lower baffle 23 is provided with an oil net 24; the driving member 50 is connected to a connecting rod in the connecting rod assembly 40. The driving member 50 can drive the upper baffle 21 and the smoke collecting plate 22 to rotate through the connecting rod assembly 40, and the upper baffle 21 can drive the lower baffle 23 to rotate through the linkage assembly 30. The driving member 50 can drive the smoke hood assembly 20 to switch between the closed state and the open state, refer to Figure 1 and Figure 3 When the smoke hood assembly 20 is in the closed state, the upper baffle 21, the smoke collecting plate 22 and the lower baffle 23 are all in a vertical state, and the upper baffle 21 and the smoke collecting plate 22 are arranged side by side in the vertical direction, and the lower baffle 23 is located on the inner side of the upper baffle 21 and the smoke collecting plate 22; Figure 2 and Figure 4 When the smoke collecting hood assembly 20 is in the open state, the upper baffle 21 and the smoke collecting plate 22 rotate and open around the upper rotating shaft 211, and the opening angle of the smoke collecting plate 22 is greater than the opening angle of the upper baffle 21 (by Figure 4 As can be seen, the angle between the upper baffle 21 and the vertical direction is α, the angle between the smoke collecting plate 22 and the upper baffle 21 is δ), and the lower baffle 23 rotates around the lower rotation axis 231 to open the angle β, forming a smoke collecting area between the smoke collecting plate 22 and the lower baffle 23. In this embodiment, the driving member 50 is an electric push rod.

[0058] The range hood provided in the embodiment of the present invention adopts a single driving member 50, combined with a connecting rod assembly 40 and a linkage assembly 30, to realize the opening and closing movement of the smoke hood assembly 20, and the cost is low; and when the smoke hood assembly 20 is in the open state, the opening angle of the smoke collecting plate 22 is greater than the opening angle of the upper baffle 21, and the lower baffle 23 will also rotate to open a certain angle, so that the area of the smoke collecting area formed by the smoke collecting plate 22 and the lower baffle 23 is relatively large, and the smoke collecting effect is good, and because the opening angle of the upper baffle 21 is small, the suction force will not be reduced under the cover of the upper baffle 21.

[0059] Further, continue to refer to Figure 3 and Figure 4 When the smoke hood assembly 20 is closed, the upper portion of the lower baffle 23 overlaps the lower portion of the upper baffle 21. During the process of switching from the closed state to the open state, the upper end of the lower baffle 23 always abuts the inner wall of the upper baffle 21. When the smoke hood assembly 20 is opened, the upper end of the lower baffle 23 abuts the lower end of the upper baffle 21. Thus, the upper baffle 21 and the lower baffle 23 always maintain abutment, ensuring the sealing of the smoke hood assembly 20.

[0060] Reference Figures 5 to 7 The linkage assembly 30 includes a slide rail 31 and a linkage bracket 32. The slide rail 31 is mounted on the upper baffle 21. One end of the linkage bracket 32 is slidably connected to the slide rail 31, and the other end of the linkage bracket 32 is hinged to the lower baffle 23 via a linkage pin 33. The upper baffle 21 can drive the lower baffle 23 to rotate through the linkage assembly 30. When the upper baffle 21 rotates open about the upper rotation axis 211, which is hinged to the housing 10, the linkage bracket 32 slides downward along the slide rail 31 under the pulling force of the lower baffle 23, causing the lower baffle 23 to follow the upper baffle 21 around the lower rotation axis 231, which is hinged to the housing 10, and open. When the upper baffle 21 rotates closed about the upper rotation axis 211, which is hinged to the housing 10, the linkage bracket 32 slides upward along the slide rail 31 under the pushing force of the lower baffle 23, causing the lower baffle 23 to follow the upper baffle 21 around the lower rotation axis 231, which is hinged to the housing 10, and close.

[0061] In this embodiment, preferably, refer to Figure 8The slide rail 31 includes a fixed frame 311, a ball bearing bracket 312, a ball bearing 313, and a slider 314. The ball bearing 313 is arranged on the ball bearing bracket 312. The ball bearing bracket 312 can slide relative to the fixed frame 311, and the slider 314 can slide relative to the ball bearing bracket 312. The linkage bracket 32 is connected to the slider 314. The above-mentioned structural arrangement of the slide rail 31 enables point-line contact and sliding between the ball bearing bracket 312 and the fixed frame 311, and between the ball bearing bracket 312 and the slider 314, with low friction. The fixed frame 311 includes a base plate and a surrounding plate arranged around the base plate. The ball bearing bracket 312 slides in contact with two surrounding plates distributed along the length direction of the base plate through the ball bearing 313. The two surrounding plates along the width direction of the base plate limit the sliding of the ball bearing bracket 312. In addition, two first limiting bosses 3121 are provided at intervals along the sliding direction on the upper end surface of the ball bearing bracket 312, and two second limiting bosses 3141 are provided at intervals along the sliding direction on the lower end surface of the slider 314. The two first limiting bosses 3121 correspond one-to-one with the two second limiting bosses 3141 to limit the movement of the slider 314 in both directions. When the second limiting bosses 3141 abut against the first limiting bosses 3121 during the sliding process of the slider 314, the sliding of the slider 314 stops.

[0062] The two sides of the upper baffle 21 are vertically connected with side panels 212. Generally, the thickness of the side panels 212 is relatively thin and the side panels 212 are easily deformed. In order to enhance the strength of the side panels 212, a reinforcing rib structure is added between the upper baffle 21 and the side panels 212. In this embodiment, referring to Figure 9 The reinforcing rib structure is composed of two slide rails 31 and a linkage bracket 32. The two slide rails 31 are respectively arranged on the upper baffle 21 and the side panel 212, and the linkage bracket 32 is simultaneously slidably connected to the two slide rails 31. The two slide rails 31 and the linkage bracket 32 form a reinforcing rib structure that can strengthen the strength of the upper baffle 21 and the side panel 212, effectively solving the problem that the thin side panel 212 makes it difficult to ensure the verticality and stability of the upper baffle 21. In addition, the reinforcing rib structure is provided by the linkage assembly 30, eliminating the need for additional structures, resulting in a simple structure. Optionally, the linkage bracket 32 includes an L-shaped frame and an arc-shaped frame 322. The L-shaped frame includes two vertically connected flat plates 321. The two flat plates 321 are respectively connected to the two slide rails 31. One end of the arc-shaped frame 322 is connected to the L-shaped frame, and the other end of the arc-shaped frame 322 is hinged to the lower baffle 23 via a linkage pin 33. Preferably, to increase the structural strength of the L-shaped frame, a reinforcing plate is connected between the two flat plates 321. In this embodiment, there are two reinforcing plates, which are respectively located at both ends of the flat plate portion 321. Of course, the reinforcing rib structure is only an example and is not limited thereto.

[0063] In this embodiment, preferably, refer to Figure 10An inclined plate 11 is disposed within the housing 10, facing the side plate 212. The angle θ between the inclined plate 11 and the side plate 212 is such that the spacing between the inclined plate 11 and the side plate 212 gradually decreases along the opening direction of the upper baffle 21. This arrangement ensures that a minimum safety gap is always maintained between the side plate 212 and the housing 10.

[0064] Generally, the distance between the smoke collecting plate 22 and the upper baffle 21 should be set to at least equal to the thickness of the smoke collecting plate 22 to prevent the smoke collecting plate 22 from interfering with the upper baffle 21 during the process of flipping relative to the upper baffle 21. However, in this embodiment, the connecting rod assembly 40 is configured to enable the smoke collecting plate 22 to perform a compound motion of rotation and translation relative to the upper baffle 21. That is, in addition to being able to flip relative to the upper baffle 21, the smoke collecting plate 22 can also translate away from the upper baffle 21. This can ensure that the gap between the upper baffle 21 and the smoke collecting plate 22 is sufficiently small and can also prevent interference between the smoke collecting plate 22 and the upper baffle 21. Generally, the thickness of the smoke collecting plate 22 is 4 mm. In this embodiment, when the smoke hood assembly 20 is in the closed state, the distance between the lower end of the upper baffle 21 and the upper end of the smoke collecting plate 22 can be less than 4 mm, or even completely free.

[0065] Specifically, refer to Figure 11 and Figure 12 The connecting rod assembly 40 includes a first fixed bracket 41, a first connecting rod a43, a first connecting rod b44, a second fixed bracket 42, a second connecting rod a45 and a second connecting rod b46. The first fixed bracket 41 and the second fixed bracket 42 are respectively fixed to the upper baffle 21 and the smoke collecting plate 22. One end of the first connecting rod a43 is hinged to the first fixed bracket 41 through a first hinge shaft 412, the other end of the first connecting rod a43 is hinged to one end of the first connecting rod b44, the other end of the first connecting rod b44 is hinged to the second fixed bracket 42 through a third hinge shaft 422, one end of the second connecting rod a45 is hinged to the second fixed bracket 42 through a fourth hinge shaft 423, the other end of the second connecting rod a45 is hinged to one end of the second connecting rod b46, the other end of the second connecting rod b46 is hinged to the first fixed bracket 41 through the second hinge shaft 413, and the first connecting rod b44 and the second connecting rod b46 are hinged to the fifth hinge shaft 461. The driving end of the driving member 50 is hinged to the second connecting rod b46 via the sixth hinge shaft 462. In this embodiment, a clearance hole 232 is provided on the lower baffle 23 for evading the second fixing bracket 42 and the rod connected thereto.

[0066] Reference Figures 13 to 15 The connecting rod assembly 40 forms two double rocker mechanisms, namely the first double rocker mechanism shown by the straight line L1, the straight line L2 and the straight line L3 (refer to Figure 13) and the second double rocker mechanism shown by straight line L4, straight line L5 and straight line L6 (refer to Figure 14 ). Combined Figure 15 As shown, the driving member 50 drives the second connecting rod b46, which is equivalent to driving the portion represented by the straight line L5 of the second double rocker mechanism. At this time, the portions represented by the straight lines L4 and L6 swing as the driven portions, thereby driving the fourth hinge axis 423 of the second fixed bracket 42 to flip around the second hinge axis 413 of the first fixed bracket 41; at the same time, the second connecting rod b46 also drives the first connecting rod b44 to translate, that is, the portion represented by the straight line L2 translates, and then the portions represented by the straight lines L1 and L3 swing, thereby driving the third hinge axis 422 of the second fixed bracket 42 to flip around the first hinge axis 412 of the first fixed bracket 41; in addition, because the portions represented by the straight lines L2 and L3 are actually the first connecting rod b44, the first connecting rod b44 undergoes a composite motion of flipping and translation, thereby enabling the second fixed bracket 42 to achieve a composite motion of flipping and translation. Since the second fixed bracket 42 is arranged on the cigarette collecting plate 22, the cigarette collecting plate 22 can undergo a composite motion of flipping and translation relative to the upper baffle 21.

[0067] In this embodiment, continue to refer to Figures 13 to 15The first fixing bracket 41 is provided with a first limiting surface 414 and a second limiting surface 415 on either side of the first connecting rod a43. The first limiting surface 414 and the second limiting surface 415 are used to limit the rotation angle of the first connecting rod a43 to either side, thereby limiting the tilting angle of the cigarette collecting plate 22. By providing the first limiting surface 414 and the second limiting surface 415 on the connecting rod assembly 40 itself, there is no need for an additional limiting mechanism, simplifying the structure and saving costs. It also avoids the high friction and dead point problems caused by the additional limiting mechanism. Of course, the arrangement positions of the first limiting surface 414 and the second limiting surface 415 are not limited to this. The first limiting surface 414 and the second limiting surface 415 can also be respectively arranged on both sides of the second connecting rod b46 of the first fixing bracket 41. In this case, the first limiting surface 414 and the second limiting surface 415 are respectively used to limit the rotation angle of the second connecting rod b46 to both sides; or the first limiting surface 414 and the second limiting surface 415 are respectively arranged on both sides of the first connecting rod b44 of the second fixing bracket 42. In this case, the first limiting surface 414 and the second limiting surface 415 are respectively used to limit the rotation angle of the first connecting rod b44 to both sides. The angle of rotation on both sides; or a first limiting surface 414 and a second limiting surface 415 are respectively set on both sides of the second fixing bracket 42 and the second link a45. At this time, the first limiting surface 414 and the second limiting surface 415 are respectively used to limit the angle of rotation of the second link a45 to both sides; or the first limiting surface 414 can be set on one side of any one of the first link a43, the first link b44, the second link a45 or the second link b46, and the second limiting surface 415 can be set on the other side of the remaining one. The above settings can meet the requirements and can be specifically set as needed.

[0068] Preferably, refer to Figure 12 The second connecting rod b46 has a through-hole extending through its thickness. The first connecting rod b44 is intersectingly inserted through the through-hole, and the second connecting rod b46 and the first connecting rod b44 are hinged at the intersection. Furthermore, the hinged ends of the first and second connecting rods a43 and b46, which are connected to the first fixed bracket 41, are sandwiched between the two side walls of the first fixed bracket 41. The hinged ends of the second connecting rod a45 and the first connecting rod b44, which are connected to the second fixed bracket 42, are sandwiched between the two side walls of the second fixed bracket 42. This arrangement makes the connecting rod assembly 40 more compact and reduces shaking during movement, ensuring the stability and reliability of the entire connecting rod assembly 40.

[0069] In addition, the connecting rod assembly 40 can be used as a separate module. A first mounting hole 411 is provided on the first fixing bracket 41, and a second mounting hole 421 is provided on the second fixing bracket 42. By providing the first mounting hole 411 and the second mounting hole 421, the connecting rod assembly 40 module can be matched with the fixing holes provided on the corresponding mounting panel. In this embodiment, the first fixing bracket 41 is installed on the upper baffle 21 through the first mounting hole 411, and the second fixing bracket 42 is installed on the smoke collecting plate 22 through the second mounting hole 421. Through the above arrangement, it is possible to achieve simplified and reliable installation and production.

[0070] Reference Figure 16 and Figure 17 The range hood provided by the embodiment of the present invention also includes an oil cup 60. An oil cup groove is provided at the lower end of the housing 10. The oil cup 60 is removably mounted within the groove, with the lower end surface of the oil cup 60 flush with the lower end surface of the housing 10. Oil collected by the impeller 70 and centrifuged flows out of the bottom drip hole under the action of gravity. After being collected by the oil collection pan 80 below, it flows out of the oil collection hole at its bottom and enters the oil cup 60 for storage. This arrangement achieves a concealed installation of the oil cup 60, enhancing the appearance of the range hood.

[0071] In this embodiment, preferably, the oil cup 60 and the oil cup groove are connected by a snap-fit connection, which facilitates the disassembly and assembly of the oil cup 60. Figures 18 to 20 The oil cup 60 includes an oil cup body 61 and two sets of snap assemblies 62. The oil cup body 61 has mounting slots on both sides along its length. The two sets of snap assemblies 62 are mounted in the mounting slots, one-to-one. The oil cup slot has two corresponding slots for the snap assemblies 62, and the snap assemblies 62 can engage with the slots. Alternatively, the positions of the snap assemblies 62 and the slots can be interchanged, with the snap assemblies 62 mounted in the oil cup slot and the slots mounted on the oil cup body 61.

[0072] More specifically, the buckle assembly 62 includes a buckle 625, a transmission rod group, a button 621, a first return spring 622 and a second return spring 626. A through hole is provided on the groove wall of the installation groove. The hook portion 6251 of the buckle 625 can extend and retract through the through hole, and when the hook portion 6251 is extended, it can be engaged with the groove; the button 621 is connected to the buckle through the transmission rod group, and by pressing the button 621, the hook portion 6251 of the buckle 625 can be controlled to retract from the through hole; the first return spring 622 is used to control the reset of the button 621, and the second return spring 626 is used to control the reset of the buckle 625. To install the oil cup 60, first press the buttons 621 on either side with both hands. The buttons 621 retract the hook portion 6251 of the clip 625 through the transmission rod assembly, compressing the first return spring 622 and the second return spring 626. Then, place the oil cup 60 into the oil cup slot and release the pressure on the buttons 621. The button 621 returns to its original position under the action of the first return spring 622, and the clip 625 returns to its original position under the action of the second return spring 626. This returns the hook portion 6251 of the clip 625 to its original position extending from the through hole, and the hook portion 6251 is now securely engaged with the slot. To clean the oil cup 60, press the buttons 621 on either side with both hands to remove it.

[0073] In this embodiment, the transmission rod assembly preferably includes a first transmission rod 623 and a second transmission rod 624. The first transmission rod 623 is L-shaped, with one end connected to the button 621 and the other end having a first wedge-shaped surface. The second transmission rod 624 is connected to the buckle 625 at one end and the other end having a second wedge-shaped surface. The first wedge-shaped surface and the second wedge-shaped surface slide together. When the button 621 is pressed, the button 621 moves upward, compressing the first return spring 622 and simultaneously pushing the first wedge-shaped surface upward. Because the first and second wedge-shaped surfaces are in inclined contact, the second wedge-shaped surface moves backward, thereby driving the buckle 625 to move backward and compressing the second return spring 626.

[0074] In this embodiment, a first positioning portion is preferably provided in the mounting slot, a first transmission rod 623 is slidably inserted into the first positioning portion, a first return spring 622 is sleeved around the first transmission rod 623 and positioned between the button 621 and the first positioning portion. A second positioning portion is also provided in the mounting slot, a buckle 625 is slidably inserted into the second positioning portion, and a second return spring 626 is sleeved around the buckle 625 and positioned between the second positioning portion and the hook portion 6251.

[0075] Furthermore, the range hood provided by the embodiment of the present invention includes an oil level detection device for detecting the amount of oil collected in the oil cup body 61. The oil level detection device is communicatively connected to an alarm device. When the weight of the oil collected in the oil cup 60 reaches a set value, the oil level detection device controls the alarm device via an electronic control signal to sound an alarm, prompting the user to clean the oil cup 60. This ensures that the oil cup 60 is cleaned promptly to prevent oil overflow.

[0076] In this embodiment, referring to Figure 20 The oil level detection device is a gravity sensor 90, which is disposed within a slot. When the hook portion 6251 is engaged within the slot, the hook portion 6251 can support the gravity sensor 90. When the gravity sensor 90 detects that the weight of the oil cup 60 has reached a set weight, it indicates that the oil level is full and the oil cup 60 needs to be cleaned. Alternatively, the oil level detection device may include a buoyancy ball and a sensor. The buoyancy ball is disposed within the oil cup body 61, and the sensor is used to detect the height of the buoyancy ball. When the sensor detects that the buoyancy ball has reached a set height, it indicates that the oil level is full and the oil cup 60 needs to be cleaned.

[0077] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A range hood, characterized in that: include: Box (10); A smoke collecting hood assembly (20) comprises an upper baffle (21), a smoke collecting plate (22) and a lower baffle (23); the upper end of the upper baffle (21) is hinged to the upper end of the housing (10) via an upper rotating shaft (211); the smoke collecting plate (22) and the upper baffle (21) are connected via a connecting rod assembly (40); the lower end of the lower baffle (23) is hinged to the lower end of the housing (10) via a lower rotating shaft (231); and the lower baffle (23) and the upper baffle (21) are connected via a linkage assembly (30); a driving member (50) which is drivingly connected to a connecting rod in the connecting rod assembly (40); the driving member (50) can drive the upper baffle (21) and the smoke collecting plate (22) to rotate through the connecting rod assembly (40); and the upper baffle (21) can drive the lower baffle (23) to rotate through the linkage assembly (30), so that the smoke collecting hood assembly (20) can be switched between a closed state and an open state; When the smoke collecting hood assembly (20) is in the open state, the upper baffle (21) and the smoke collecting plate (22) are opened around the upper rotating shaft (211), and the opening angle of the smoke collecting plate (22) is greater than the opening angle of the upper baffle (21), and the lower baffle (23) is opened around the lower rotating shaft (231), and a smoke collecting area is formed between the smoke collecting plate (22) and the lower baffle (23).

2. The range hood according to claim 1, characterized in that: When the smoke hood assembly (20) is in the closed state, the upper baffle (21), the smoke collecting plate (22) and the lower baffle (23) are all in a vertical state, and the upper baffle (21) and the smoke collecting plate (22) are arranged side by side in the vertical direction, and the lower baffle (23) is located on the inner side of the upper baffle (21) and the smoke collecting plate (22).

3. The range hood according to claim 1, characterized in that: The linkage assembly (30) comprises a slide rail (31) and a linkage bracket (32), wherein the slide rail (31) is arranged on the upper baffle (21), one end of the linkage bracket (32) is slidably connected to the slide rail (31), and the other end of the linkage bracket (32) is hinged to the lower baffle (23).

4. The range hood according to claim 3, characterized in that: The slide rail (31) comprises a fixing frame (311), a ball support (312), a ball (313) and a slider (314); the ball (313) is arranged on the ball support (312); the ball support (312) can slide relative to the fixing frame (311); and the slider (314) can slide relative to the ball support (312); and the linkage support (32) is connected to the slider (314).

5. The range hood according to claim 4, characterized in that: The upper end surface of the ball support (312) is provided with two first limiting bosses (3121) at intervals along its sliding direction, and the lower end surface of the slider (314) is provided with two second limiting bosses (3141) at intervals along its sliding direction. The two first limiting bosses (3121) correspond to the two second limiting bosses (3141) in a one-to-one manner to limit the movement of the slider (314) in two directions.

6. The range hood according to claim 3, characterized in that: There are two slide rails (31) and one linkage bracket (32). The two slide rails (31) are respectively arranged on the upper baffle (21) and the side plate (212) vertically connected to the upper baffle (21). The linkage bracket (32) is slidably connected to the two slide rails (31) at the same time.

7. The range hood according to claim 6, characterized in that: An inclined plate (11) is provided in the box body (10) and is arranged opposite to the side plate (212). An angle is formed between the inclined plate (11) and the side plate (212), and the distance between the inclined plate (11) and the side plate (212) gradually decreases along the opening direction of the upper baffle (21).

8. The range hood according to claim 1, characterized in that: The connecting rod assembly (40) includes a first fixed bracket (41), a first connecting rod a (43), a first connecting rod b (44), a second fixed bracket (42), a second connecting rod a (45) and a second connecting rod b (46), wherein the first fixed bracket (41) and the second fixed bracket (42) are fixed to the upper baffle (21) and the smoke collecting plate (22) respectively, one end of the first connecting rod a (43) is hinged to the first fixed bracket (41), and the other end of the first connecting rod a (43) is hinged to one end of the first connecting rod b (44). The first connecting rod b (44) is hinged at one end to the second fixed bracket (42), the other end of the first connecting rod b (44) is hinged at the other end to the second fixed bracket (42); one end of the second connecting rod a (45) is hinged at the second fixed bracket (42), the other end of the second connecting rod a (45) is hinged at one end of the second connecting rod b (46), the other end of the second connecting rod b (46) is hinged at the first fixed bracket (41), and the first connecting rod b (44) is hinged at the second connecting rod b (46), and the driving member (50) is drivingly connected to the second connecting rod b (46).

9. The range hood according to claim 8, characterized in that: The second connecting rod b (46) is provided with a through hole penetrating along the thickness direction thereof, the first connecting rod b (44) is cross-pierced through the through hole, and the second connecting rod b (46) and the first connecting rod b (44) are hinged at the intersection.

10. The range hood according to claim 1, characterized in that: The driving member (50) is an electric push rod.

Images