Range hood

Abstract

The utility model discloses a range hood, which belongs to the technical field of kitchen appliances. The range hood includes a smoke collecting hood and a flap. A smoke collecting chamber is formed inside the smoke collecting hood. The smoke collecting hood includes a smoke baffle located at the bottom of the smoke collecting chamber. The smoke baffle extends downwardly from front to back and is inclined. At least two air inlets connected to the smoke collecting chamber are sequentially provided on the smoke baffle from top to bottom. The flap is rotatably connected to the smoke collecting hood. A flap is provided corresponding to each air inlet, and the flap can open or close the air inlet. The flap located at the bottom rotates toward the inside of the smoke collecting chamber when the air inlet is opened. By providing at least two air inlets connected to the smoke collecting chamber on the smoke baffle, and providing a flap corresponding to each air inlet, the area of ​​the flap can be reduced. The flap located at the bottom rotates toward the inside of the smoke collecting chamber when the air inlet is opened, so as not to occupy the external space of the smoke collecting hood and avoid blocking the user's sight.

Description

Technical Field

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

[0002] A range hood is a commonly used kitchen appliance used to purify the kitchen environment. It can quickly extract and discharge harmful gases produced by gas stoves and fumes produced during cooking to the outdoors, reducing the harm of harmful gases and fumes to the human body and improving the user's cooking comfort.

[0003] The commonly used range hood is a flap-type range hood, which includes a smoke hood and a flip-up air guide plate. The air inlet on the smoke hood is opened or closed by flipping the air guide plate. Generally, a larger air inlet is set on the smoke hood, and a corresponding larger air guide plate is set. For top-suction range hoods, the air guide plate flips forward and downward when opened. If the air guide plate is far away from the stove, the smoke extraction effect is not good; if the air guide plate is close to the stove, due to the large air guide plate, the operator is likely to collide with the air guide plate when operating on the stove, resulting in a poor user experience. Some range hoods are provided with two air guide plates. Although the area of ​​a single air guide plate is reduced, when opened, both air guide plates flip to the outside of the smoke hood. Some air guide plates will block the user's line of sight, resulting in a poor user experience. Utility Model Content

[0004] The utility model aims to provide a range hood to solve the technical problem in the prior art that the air guide plate is easy to collide with the operator or block the sight.

[0005] As conceived above, the technical solution adopted by the utility model is:

[0006] A range hood, comprising:

[0007] A smoke collecting hood, wherein a smoke collecting cavity is formed inside the smoke collecting hood, and the smoke collecting hood comprises a smoke baffle plate located at the bottom of the smoke collecting cavity, the smoke baffle plate extends downwardly from front to rear, and at least two air inlets communicating with the smoke collecting cavity are sequentially opened on the smoke baffle plate from top to bottom;

[0008] A flap is rotatably connected to the smoke collecting hood, and one flap is provided corresponding to each air inlet. The flap can open or close the corresponding air inlet, and the flap located at the bottom rotates toward the inside of the smoke collecting chamber when the air inlet is opened.

[0009] Preferably, the smoke shield is provided with two air inlets, namely a first air inlet and a second air inlet, and the second air inlet is located at the rear and lower part of the first air inlet;

[0010] The flap provided corresponding to the first air inlet is a first flap, and the flap provided corresponding to the second air inlet is a second flap;

[0011] The first flap rotates toward the outside of the smoke collecting chamber when the first air inlet is opened, and the second flap rotates toward the inside of the smoke collecting chamber when the second air inlet is opened.

[0012] Preferably, a first driving mechanism is provided corresponding to the first flap, and the first driving mechanism is used to drive the first flap to rotate. A second driving mechanism is provided corresponding to the second flap, and the second driving mechanism is used to drive the second flap to rotate. The first flap and the second flap move independently.

[0013] Preferably, it further includes a driving mechanism and a connecting rod mechanism, wherein the driving mechanism is used to drive the first flap to rotate, and the connecting rod mechanism is arranged between the first flap and the second flap, and when the first flap is opened, the second flap is driven to open through the connecting rod mechanism.

[0014] Preferably, the driving mechanism comprises a motor, a gear and an arc-shaped rack, the gear is arranged on the smoke hood and connected to the motor, and the arc-shaped rack is connected to the first flap and meshes with the gear.

[0015] Preferably, the connecting rod mechanism includes a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod which are hinged in sequence, the end of the first connecting rod away from the second connecting rod is hinged to the smoke hood, the first flap is fixedly connected to the first connecting rod, the middle part of the third connecting rod is rotatably connected to the smoke hood, the end of the fifth connecting rod away from the fourth connecting rod is hinged to the smoke hood, and the second flap is fixedly connected to the fifth connecting rod.

[0016] Preferably, a first guiding bevel is provided on the edge of the second air inlet of the smoke collecting hood, and a second guiding bevel is provided on the edge of the second flap. When the second flap is closed, the first guiding bevel fits with the second guiding bevel.

[0017] Preferably, the smoke shield is provided with two air inlets, and two flaps are provided correspondingly, and the two flaps rotate toward the inside of the smoke collecting chamber when the corresponding air inlets are opened.

[0018] Preferably, the smoke baffle includes a partition plate arranged between adjacent air inlets, and the partition plate separates adjacent air inlets.

[0019] Preferably, the smoke baffle is a flat plate, or the smoke baffle is a bent plate, and the smoke baffle further comprises a first flat plate and a second flat plate arranged at an angle to the partition, and the air inlet is arranged on both the first flat plate and the second flat plate.

[0020] Beneficial effects of the utility model:

[0021] The range hood proposed by the utility model has at least two air inlets connected to the smoke collecting chamber on the smoke shield plate, and a flap is provided corresponding to each air inlet, so that the area of ​​the flap can be reduced. The flap located at the bottom rotates toward the inside of the smoke collecting chamber when the air inlet is opened, does not occupy the external space of the smoke collecting hood, and avoids blocking the user's line of sight. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of a range hood provided in the first embodiment of the utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of a range hood provided in the first embodiment of the utility model. Figure 2 ;

[0024] Figure 3 It is a schematic diagram of the second driving mechanism and the second flap provided in the first embodiment of the utility model;

[0025] Figure 4 It is a schematic diagram of the first driving mechanism and the first flap provided in the first embodiment of the utility model;

[0026] Figure 5 It is a schematic diagram of the cooperation between the first flap and the smoke collecting hood provided in the first embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of another range hood provided in the first embodiment of the utility model. Figure 1 ;

[0028] Figure 7 This is a schematic diagram of another range hood provided in the first embodiment of the utility model. Figure 2 ;

[0029] Figure 8 This is a schematic diagram of a range hood provided in the second embodiment of the present utility model. Figure 1 ;

[0030] Fig. 9 This is a schematic diagram of a range hood provided in the second embodiment of the present utility model. Figure 2 ;

[0031] Fig.10 This is a partial structural schematic diagram of a range hood provided in Embodiment 2 of the present utility model;

[0032] Fig.11 This is a schematic diagram of a range hood provided in Embodiment 3 of the present utility model. Figure 1 ;

[0033] Fig.12 This is a schematic diagram of a range hood provided in Embodiment 3 of the present utility model. Figure 2 ;

[0034] Fig.13 This is a schematic diagram of a range hood provided in the fourth embodiment of the present utility model. Figure 1 ;

[0035] Fig.14 This is a schematic diagram of a range hood provided in the fourth embodiment of the present utility model. Figure 2 .

[0036] In the figure:

[0037] 10. Smoke collecting hood; 11. Smoke collecting chamber; 121. First air inlet; 122. Second air inlet; 13. Smoke shield; 131. Partition; 132. First flat plate; 133. Second flat plate; 14. First guiding inclined plane;

[0038] 21. first flap; 22. second flap; 221. second guide slope; 23. first reinforcement plate; 24. adapter plate;

[0039] 31. gear; 32. arc-shaped rack; 33. first bracket; 34. guide rod;

[0040] 41. Electric push rod; 42. Second bracket;

[0041] 51, first connecting rod; 52, second connecting rod; 53, third connecting rod; 54, fourth connecting rod; 55, fifth connecting rod. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and 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 to be used to explain the present invention, and should not be construed as limiting the present invention.

[0043] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0046] Embodiment 1

[0047] See also Figures 1 to 5 The present embodiment provides a range hood, which can be a top-suction range hood or a range hood installed on an integrated stove. The range hood includes a smoke collecting hood 10 and a flap. A smoke collecting chamber 11 is formed inside the smoke collecting hood 10. The smoke collecting hood 10 includes a smoke baffle 13 located at the bottom of the smoke collecting chamber 11. The smoke baffle 13 extends downwardly from front to back and is inclined. At least two air inlets connected to the smoke collecting chamber 11 are sequentially opened on the smoke baffle 13 from top to bottom; the flap is rotatably connected to the smoke collecting hood 10, and a flap is provided corresponding to each air inlet. The flap can open or close the corresponding air inlet, and the flap located at the bottom rotates toward the inside of the smoke collecting chamber 11 when the air inlet is opened.

[0048] By providing at least two air inlets connected to the smoke collecting chamber 11 on the smoke shield 13, and providing a flap corresponding to each air inlet, the area of ​​the flap can be reduced, and the flap located at the bottom rotates toward the inside of the smoke collecting chamber 11 when the air inlet is opened, so as not to occupy the external space of the smoke collecting hood 10 and avoid blocking the user's sight. The smoke shield 13 extends downward from the front to the back and can make full use of the space, so that the front part of the smoke shield 13 is higher to avoid the flap colliding with the operator, and the rear part of the smoke shield 13 is closer to the stove, which improves the smoking effect.

[0049] The up-down, left-right, and front-to-back directions of the smoke hood 10 are defined. The smoke baffle 13 extends downwardly from the front to the back, so that the air inlet can face the stove and the operator, which is convenient for sucking the oil smoke below and in front. The angle between the smoke baffle 13 and the horizontal plane is an acute angle. Depending on the type of range hood, the inclination angle of the smoke baffle 13 relative to the horizontal plane is different. For a side-suction range hood, the inclination angle of the smoke baffle 13 relative to the horizontal plane is larger, and for a top-suction range hood, the inclination angle of the smoke baffle 13 relative to the horizontal plane is smaller.

[0050] The air inlets are provided on the smoke shield 13, and the air inlets are arranged in sequence from top to bottom. Since the smoke shield 13 extends downwardly from front to back in an inclined manner, the air inlets are arranged in sequence from front to back. Each air inlet extends in the left-right direction of the smoke hood 10, and is usually arranged in a rectangular shape. In some embodiments, adjacent air inlets are interconnected, and when opened, the air inlets form an air inlet channel with a larger area; when closed, adjacent flaps are spliced ​​with each other. In some embodiments, the smoke shield 13 includes a partition 131 arranged between adjacent air inlets, and the partition 131 separates adjacent air inlets, and each air inlet is independent of each other.

[0051] In some embodiments, three air inlets connected to the smoke collecting chamber 11 are provided on the smoke baffle 13, and three flaps are provided correspondingly. It can be that the flap located at the bottom rotates toward the inside of the smoke collecting chamber 11 when the air inlet is opened, and the other two flaps rotate toward the outside of the smoke collecting chamber 11 when the air inlet is opened; it can also be that the flap located at the top rotates toward the outside of the smoke collecting chamber 11 when the air inlet is opened, and the other two flaps rotate toward the inside of the smoke collecting chamber 11 when the air inlet is opened; it can also be that all three flaps rotate toward the inside of the smoke collecting chamber 11 when the air inlet is opened.

[0052] In this embodiment, the smoke baffle 13 is a flat plate, and the air inlet and the partition 131 are located on the same plane, which is convenient for processing and production. Since the smoke baffle 13 extends downward from the front to the back, there is a height difference between adjacent air inlets in the vertical direction, which can absorb oil smoke at different heights. In order to prevent the flap from blocking the operator's sight or affecting the operator's operation of the pot on the stove, the flap located at the bottom is arranged to rotate toward the inside of the smoke collecting chamber 11. The remaining flaps can be rotated toward the inside or outside of the smoke collecting chamber 11 according to actual needs.

[0053] In the present embodiment, two air inlets are provided on the smoke baffle 13, namely a first air inlet 121 and a second air inlet 122, and the second air inlet 122 is located at the rear and lower part of the first air inlet 121; the flap corresponding to the first air inlet 121 is the first flap 21, and the flap corresponding to the second air inlet 122 is the second flap 22; the first flap 21 rotates toward the outside of the smoke collecting chamber 11 when the first air inlet 121 is opened, and the second flap 22 rotates toward the inside of the smoke collecting chamber 11 when the second air inlet 122 is opened.

[0054] Since the second air inlet 122 is located below and behind the first air inlet 121 , the second flap 22 is located below and behind the first flap 21 . When opened, the first flap 21 rotates toward the outside of the smoke collecting chamber 11 , and the second flap 22 rotates toward the inside of the smoke collecting chamber 11 .

[0055] See also Figure 1 and Figure 3 The rotation axis of the first flap 21 is located at the upper front of the first flap 21. When the first flap 21 is opened, it rotates toward the lower front of the first air inlet 121. The rotation axis of the second flap 22 is located at the upper front of the second flap 22. When the second flap 22 is opened, it rotates toward the upper front of the second air inlet 122. Figure 6 and Figure 7 The rotation axis of the second flap 22 is located at the rear and lower part of the second flap 22, and the second flap 22 rotates toward the rear and upper part of the second air inlet 122 when opened.

[0056] In some embodiments, a set of driving mechanisms is provided for each flap, and the driving mechanisms are used to drive the flap to rotate, and each flap moves independently. In some embodiments, at least two flaps share a set of driving mechanisms, and the two flaps are linked to reduce the number of driving mechanisms.

[0057] In this embodiment, a first driving mechanism is provided corresponding to the first flap 21, and the first driving mechanism is used to drive the first flap 21 to rotate. A second driving mechanism is provided corresponding to the second flap 22, and the second driving mechanism is used to drive the second flap 22 to rotate. The first flap 21 and the second flap 22 move independently.

[0058] The first driving mechanism and the second driving mechanism may have the same structure or different structures.

[0059] Exemplarily, the first driving mechanism includes a motor, a gear 31 and an arc-shaped rack 32. The gear 31 is disposed on the smoke hood 10 and connected to the motor. The arc-shaped rack 32 is connected to the first flap 21 and meshes with the gear 31. The motor drives the gear 31 to rotate, and the gear 31 drives the arc-shaped rack 32 to rotate, thereby driving the first flap 21 to rotate. The gear 31 meshes with the arc-shaped rack 32, and the transmission is accurate and stable.

[0060] The first driving mechanism also includes a first bracket 33, which is fixedly arranged on the smoke hood 10, and the gear 31 is rotatably connected to the first bracket 33, and the first bracket 33 is connected to the arc-shaped rack 32 through a guide rod 34. Specifically, the gear 31 is sleeved on the rotating shaft, and the rotating shaft is rotatably connected to the first bracket 33, and a bearing can be arranged between the rotating shaft and the first bracket 33. One end of the guide rod 34 is rotatably connected to the first bracket 33, and the other end of the guide rod 34 is fixedly connected to the arc-shaped rack 32. The guide rod 34 can provide support for the arc-shaped rack 32, and can also guide the arc-shaped rack 32, so that the rotation of the arc-shaped rack 32 is stable. During the rotation of the arc-shaped rack 32, the guide rod 34 rotates along with it. It can be understood that the rotation axis of the guide rod 34 coincides with that of the arc-shaped rack 32. Since the gear 31 is meshed with the arc-shaped rack 32 , the gear 31 can provide a certain supporting force to the arc-shaped rack 32 . In addition, the support of the arc-shaped rack 32 by the guide rod 34 makes the arc-shaped rack 32 stable.

[0061] Exemplarily, the second driving mechanism includes an electric push rod 41 and a second bracket 42, one end of the electric push rod 41 is hinged to the smoke hood 10, the other end of the electric push rod 41 is hinged to the second bracket 42, one end of the second bracket 42 is hinged to the smoke hood 10, and the other end of the second bracket 42 is fixedly connected to the second flap 22, and the second flap 22 is driven to rotate by the extension of the electric push rod 41. The rotation axis of the second flap 22 coincides with the rotation axis of the second bracket 42 around the smoke hood 10. The second bracket 42 can be a bent structure to adapt to the installation space.

[0062] When in use, only the first flap 21 can be opened, only the second flap 22 can be opened, or both the first flap 21 and the second flap 22 can be opened. Specifically, it can be controlled according to the fume concentration. For example, a fume concentration sensor is provided on the fume hood 10. When it is detected that the fume concentration is greater than the first set value, the first flap 21 and the second flap 22 are fully opened; when it is detected that the fume concentration is less than or equal to the first set value and greater than the second set value, the first flap 21 is fully opened; when it is detected that the fume concentration is less than or equal to the second set value, the first flap 21 is half opened. The opening angles of the first flap 21 and the second flap 22 can be controlled according to actual needs.

[0063] See also Figure 3 The first guide slope 14 is provided on the edge of the second air inlet 122 of the smoke hood 10, and the second guide slope 221 is provided on the edge of the second flap 22. When the second flap 22 is closed, the first guide slope 14 fits with the second guide slope 221. The first guide slope 14 cooperates with the second guide slope 221, so that the second flap 22 is more easily embedded in the second air inlet 122, and when the second flap 22 is closed, it fits better with the smoke hood 10 to avoid gaps.

[0064] See also Figure 5 , a first reinforcing plate 23 is arranged on the inner side of the first flap 21, and the first reinforcing plate 23 extends from one side of the first flap 21 to the other side of the first flap 21 along the length direction of the first flap 21, and the driving mechanism is connected to the middle position of the first reinforcing plate 23. By arranging the first reinforcing plate 23 on the inner side of the first flap 21, not only can the structural strength be increased, but also the first reinforcing plate 23 extends from one side of the first flap 21 to the other side of the first flap 21 along the length direction of the first flap 21, and the driving mechanism is connected to the middle position of the first reinforcing plate 23, and the driving force of the driving mechanism acts on the first reinforcing plate 23, and then acts on the first flap 21, and the driving force is transmitted to both sides of the first flap 21 along the first reinforcing plate 23, so that both sides of the first flap 21 are evenly stressed, and there is no gap after closing.

[0065] Similarly, a second reinforcing plate can be provided inside the second flap 22, and the second reinforcing plate extends from one side of the second flap 22 to the other side of the second flap 22 along the length direction of the second flap 22, and the driving mechanism is connected to the middle position of the second reinforcing plate.

[0066] Embodiment 2

[0067] Figures 8 to 10 The second embodiment is shown, in which the parts identical or corresponding to the first embodiment are marked with the corresponding reference numerals of the first embodiment. For the sake of simplicity, only the differences between the second embodiment and the first embodiment are described. The difference is that the first flap 21 is linked with the second flap 22. The range hood includes a driving mechanism and a connecting rod mechanism, the driving mechanism is used to drive the first flap 21 to rotate, the connecting rod mechanism is arranged between the first flap 21 and the second flap 22, and the first flap 21 drives the second flap 22 to open through the connecting rod mechanism when it is opened. The first flap 21 and the second flap 22 share a driving mechanism, and are opened and closed at the same time, thereby reducing the number of drives.

[0068] The driving mechanism may include a motor, a gear 31 and an arc-shaped rack 32. The gear 31 is disposed on the smoke hood 10 and connected to the motor. The arc-shaped rack 32 is connected to the first flap 21 and meshes with the gear 31. The motor drives the gear 31 to rotate, and the gear 31 drives the arc-shaped rack 32 to rotate, thereby driving the first flap 21 to rotate. The gear 31 meshes with the arc-shaped rack 32, and the transmission is accurate and stable.

[0069] The connecting rod mechanism includes a first connecting rod 51, a second connecting rod 52, a third connecting rod 53, a fourth connecting rod 54 and a fifth connecting rod 55 which are hinged in sequence. The end of the first connecting rod 51 away from the second connecting rod 52 is hinged to the smoke hood 10, the first flap 21 is fixedly connected to the first connecting rod 51, the middle part of the third connecting rod 53 is rotatably connected to the smoke hood 10, the end of the fifth connecting rod 55 away from the fourth connecting rod 54 is hinged to the smoke hood 10, and the second flap 22 is fixedly connected to the fifth connecting rod 55.

[0070] When the motor drives the arc rack 32 to rotate, it also drives the first connecting rod 51 to rotate. The first connecting rod 51 drives the third connecting rod 53 to rotate around the smoke hood 10 through the second connecting rod 52. The third connecting rod 53 drives the fifth connecting rod 55 to rotate through the fourth connecting rod 54. The fifth connecting rod 55 drives the second flap 22 to rotate.

[0071] The first connecting rod 51 can be directly fixedly connected to the first flap 21, or the first connecting rod 51 can be indirectly fixedly connected to the first flap 21. Since the arc-shaped rack 32 is fixedly connected to the first flap 21, it is equivalent to the arc-shaped rack 32 and the first flap 21 being an integral structure, and the two move synchronously, so the first connecting rod 51 can be connected to the arc-shaped rack 32. The fifth connecting rod 55 can be directly fixedly connected to the second flap 22, or the fifth connecting rod 55 can be indirectly fixedly connected to the second flap 22. For example, an adapter plate 24 can be set on the second flap 22, and the fifth connecting rod 55 is fixedly connected to the adapter plate 24.

[0072] Embodiment 3

[0073] Fig.11 and Fig.12 The third embodiment is shown, wherein the components identical or corresponding to the first embodiment are marked with the corresponding reference numerals of the first embodiment. For the sake of simplicity, only the differences between the third embodiment and the first embodiment are described. The difference is that two air inlets are provided on the smoke baffle plate 13, and two flaps are correspondingly provided, and the two flaps rotate toward the inner side of the smoke collecting chamber 11 when the corresponding air inlets are opened.

[0074] It can be that a set of driving mechanisms is provided corresponding to each flap, and the driving mechanisms are used to drive the flaps to rotate, and the two flaps move independently. Taking the first flap 21 as an example, the driving mechanism includes a first electric push rod and a support frame, one end of the first electric push rod is hinged to the smoke hood 10, and the other end of the first electric push rod is hinged to the support frame, one end of the support frame is hinged to the smoke hood 10, and the other end of the support frame is fixedly connected to the first flap 21, and the first flap 21 is driven to rotate by the extension of the first electric push rod.

[0075] Embodiment 4

[0076] Fig.13 and Fig.14 The fourth embodiment is shown, wherein the components identical or corresponding to the first embodiment are marked with the corresponding reference numerals of the first embodiment. For the sake of simplicity, only the differences between the fourth embodiment and the first embodiment are described. The difference is that the smoke shield 13 is a bent plate, and the smoke shield 13 includes a first flat plate 132 and a second flat plate 133 arranged at an angle with the partition 131, and the first flat plate 132 and the second flat plate 133 are both provided with air inlets. By setting the smoke shield 13 as a bent plate, the space can be more fully utilized.

[0077] It can be that the first flat plate 132 is located in the upper front of the partition 131, the first flat plate 132 is provided with the first air inlet 121, and the second flat plate 133 is located in the lower rear of the partition 131, and the second flat plate 133 is provided with the second air inlet 122. By tilting the first flat plate 132 forward and upward relative to the partition 131, the first air inlet 121 is further away from the stove, avoiding the collision between the first flap 21 and the operator, and reserving space for the first flap 21 to flip forward and downward. By tilting the second flat plate 133 backward and downward relative to the partition 131, the second air inlet 122 is closer to the stove, and the second flap 22 rotates toward the inside of the smoke collecting chamber 11 to avoid blocking the operator's line of sight. The first flat plate 132 and the second flat plate 133 can be parallel or arranged at an angle.

[0078] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A range hood, characterized in that: include: A smoke collecting hood (10), wherein a smoke collecting cavity (11) is formed inside the smoke collecting hood (10), wherein the smoke collecting hood (10) comprises a smoke baffle (13) located at the bottom of the smoke collecting cavity (11), wherein the smoke baffle (13) extends downwardly and obliquely from front to rear, and wherein at least two air inlets communicating with the smoke collecting cavity (11) are sequentially formed on the smoke baffle (13) from top to bottom; A flap is rotatably connected to the smoke collecting hood (10), and one flap is provided corresponding to each air inlet. The flap can open or close the corresponding air inlet, and the flap located at the bottom rotates toward the inside of the smoke collecting chamber (11) when the air inlet is opened.

2. The range hood according to claim 1, characterized in that: The smoke shield (13) is provided with two air inlets, namely a first air inlet (121) and a second air inlet (122), wherein the second air inlet (122) is located at the rear and lower part of the first air inlet (121); The flap arranged corresponding to the first air inlet (121) is a first flap (21), and the flap arranged corresponding to the second air inlet (122) is a second flap (22); The first flap (21) rotates toward the outside of the smoke collecting chamber (11) when the first air inlet (121) is opened, and the second flap (22) rotates toward the inside of the smoke collecting chamber (11) when the second air inlet (122) is opened.

3. The range hood according to claim 2, characterized in that: A first driving mechanism is provided corresponding to the first flap (21), and the first driving mechanism is used to drive the first flap (21) to rotate; a second driving mechanism is provided corresponding to the second flap (22), and the second driving mechanism is used to drive the second flap (22) to rotate; the first flap (21) and the second flap (22) move independently.

4. The range hood according to claim 2, characterized in that: It also comprises a driving mechanism and a connecting rod mechanism, wherein the driving mechanism is used to drive the first flap (21) to rotate, and the connecting rod mechanism is arranged between the first flap (21) and the second flap (22), and when the first flap (21) is opened, the second flap (22) is driven to open through the connecting rod mechanism.

5. The range hood according to claim 4, characterized in that: The driving mechanism comprises a motor, a gear (31) and an arc-shaped rack (32); the gear (31) is arranged on the smoke collecting hood (10) and connected to the motor; the arc-shaped rack (32) is connected to the first flap (21) and meshes with the gear (31).

6. The range hood according to claim 4, characterized in that: The connecting rod mechanism comprises a first connecting rod (51), a second connecting rod (52), a third connecting rod (53), a fourth connecting rod (54) and a fifth connecting rod (55) which are hinged in sequence, wherein one end of the first connecting rod (51) away from the second connecting rod (52) is hinged to the smoke hood (10), the first flap (21) is fixedly connected to the first connecting rod (51), the middle part of the third connecting rod (53) is rotatably connected to the smoke hood (10), one end of the fifth connecting rod (55) away from the fourth connecting rod (54) is hinged to the smoke hood (10), and the second flap (22) is fixedly connected to the fifth connecting rod (55).

7. The range hood according to claim 2, characterized in that: A first guiding bevel (14) is provided on the edge of the second air inlet (122) on the smoke collecting hood (10), and a second guiding bevel (221) is provided on the edge of the second flap (22); when the second flap (22) is closed, the first guiding bevel (14) fits the second guiding bevel (221).

8. The range hood according to claim 1, characterized in that: The smoke baffle (13) is provided with two air inlets, and two flaps are provided correspondingly, and the two flaps rotate toward the inside of the smoke collecting chamber (11) when the corresponding air inlets are opened.

9. The range hood according to any one of claims 1 to 8, characterized in that: The smoke baffle (13) comprises a partition (131) arranged between adjacent air inlets, and the partition (131) partitions adjacent air inlets.

10. The range hood according to claim 9, characterized in that: The smoke shield (13) is a flat plate, or the smoke shield (13) is a bent plate, and the smoke shield (13) further comprises a first flat plate (132) and a second flat plate (133) which are arranged at an angle with the partition (131), and the air inlet is arranged on both the first flat plate (132) and the second flat plate (133).

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