A range hood

Abstract

This utility model discloses a range hood, including a smoke collection hood. The bottom of the smoke collection hood gradually slopes backward from top to bottom. A smoke inlet is provided at the bottom of the smoke collection hood. The range hood also includes a smoke baffle assembly that can open or close the smoke inlet. The smoke baffle assembly includes a first smoke baffle and a second smoke baffle arranged vertically. The top of the first smoke baffle is rotatably connected to the upper part of the smoke collection hood, and the bottom of the first smoke baffle is rotatably connected to the top of the second smoke baffle. When the smoke baffle assembly opens the smoke inlet, the first and second smoke baffles are folded. The second smoke baffle slopes downward from back to front and connects to the first smoke baffle at its lowest point. The side of the second smoke baffle away from the first smoke baffle forms a guide surface. When the smoke baffle assembly closes the smoke inlet, the first and second smoke baffles are unfolded. The second smoke baffle is located behind the first smoke baffle, and the guide surface is located on the side of the second smoke baffle away from the smoke collection hood.

Description

Technical Field

[0001] This utility model relates to an oil fume purification device, and more particularly to an oil fume extractor. Background Technology

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It can quickly remove waste from the stove and fumes produced during cooking and exhaust them outdoors, reducing pollution and purifying the air.

[0003] For example, a range hood disclosed in Chinese utility model patent application number 202421251713.0 includes a smoke collection hood with an air inlet, and the range hood also includes a baffle that can be flipped to open or close the air inlet.

[0004] The surface of the smoke baffle used for airflow diversion is the inner side of the smoke baffle. Oil fumes are guided into the air inlet through the inner side, leaving oil stains that need to be cleaned regularly. In addition to the glass, the inner side often has a back panel light and faces the wall, making it difficult to clean. Utility Model Content

[0005] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a range hood that makes the guide surface of the smoke baffle easy to clean.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a range hood, including a smoke collection hood, the bottom of which gradually slopes backward from top to bottom, and a smoke inlet is provided at the bottom of the smoke collection hood. The range hood also includes a smoke baffle assembly that can open or close the smoke inlet. The smoke baffle assembly includes a first smoke baffle and a second smoke baffle. The top of the first smoke baffle is rotatably connected to the upper part of the smoke collection hood, and the bottom of the first smoke baffle is rotatably connected to the second smoke baffle. When the smoke baffle assembly opens the smoke inlet, the first and second smoke baffles are folded. The second smoke baffle slopes downward from back to front and is connected to the first smoke baffle at its lowest point. The side of the second smoke baffle away from the first smoke baffle forms a guide surface. When the smoke baffle assembly closes the smoke inlet, the first and second smoke baffles are unfolded. The second smoke baffle is located behind the first smoke baffle, and the guide surface is located on the side of the second smoke baffle away from the smoke collection hood.

[0007] By setting the smoke baffle assembly as a first smoke baffle and a second smoke baffle, when the smoke baffle assembly opens the smoke inlet, the first smoke baffle and the second smoke baffle are folded. The side of the second smoke baffle away from the first smoke baffle forms a guide surface. When the smoke baffle assembly closes the smoke inlet, the guide surface faces outward, thereby making the guide surface easy to clean.

[0008] In order to drive the first and second smoke baffles to move, the range hood also includes a motion mechanism that drives the first and second smoke baffles to move.

[0009] In order to drive the first and second smoke baffles to move, the motion mechanism includes a bracket, a motor, a first crank, a second crank, and a connecting rod. The bracket is located inside the smoke hood, the motor is mounted on the bracket, and the motor includes an output shaft. One end of the first crank is rotatably mounted on the bracket, and the other end of the first crank is connected to the side of the first smoke baffle facing the inside of the smoke hood. One end of the connecting rod is fixedly connected to the output shaft, and the other end of the connecting rod is rotatably connected to one end of the second crank. The other end of the second crank is rotatably connected to the body portion between the two ends of the first crank.

[0010] In order to drive the first and second smoke baffles to move, the motion mechanism also includes a slide rail assembly. The slide rail assembly is respectively arranged on the left and right sides of the bottom of the smoke hood. The slide rail assembly includes a slide rail and a slider that slides along the extension direction of the slide rail. The tilt angle of the slide rail corresponds to the tilt angle of the bottom of the smoke hood. The left and right sides of the second smoke baffle are directly or indirectly rotatably connected to the slider on the corresponding side.

[0011] In order to fill the gaps between the left and right sides of the first and second smoke baffles and the smoke collection hood, when the smoke baffle assembly opens the smoke inlet, gaps are formed between the left and right sides of the first and second smoke baffles and the smoke collection hood. The smoke baffle assembly also includes side smoke baffles that can block these gaps.

[0012] To achieve the rotatable connection between the first and second smoke baffles and the connection between the second smoke baffle and the slide rail assembly, the smoke baffle assembly includes a first smoke baffle bracket and a second smoke baffle bracket. The bottom of the first smoke baffle bracket and the top of the second smoke baffle bracket are rotatably connected. The first smoke baffle is located on the side of the first smoke baffle bracket away from the smoke collection hood, and the second smoke baffle is located on the side of the second smoke baffle bracket away from the smoke collection hood. The side smoke baffles are respectively located on the left and right sides of the second smoke baffle bracket, and the side smoke baffles are rotatably connected to the corresponding sliders.

[0013] In order to catch the oil on the second baffle plate and prevent it from dripping onto the stove below, the range hood also includes an oil cup located at the bottom of the smoke collection hood. When the smoke inlet of the baffle plate assembly is closed, the bottom of the second baffle plate is located inside the oil cup.

[0014] Furthermore, the range hood also includes a light fixture mounted on the second smoke baffle, with the light fixture positioned on the airflow guide surface. The light fixture can be directed towards the cooktop whether the range hood is on or off.

[0015] Compared with the prior art, the advantages of this utility model are as follows: by setting the smoke baffle assembly as a first smoke baffle and a second smoke baffle, when the smoke baffle assembly opens the smoke inlet, the first smoke baffle and the second smoke baffle are folded, and the side of the second smoke baffle away from the first smoke baffle forms a guide surface. When the smoke baffle assembly closes the smoke inlet, the guide surface faces outward, thereby making the guide surface easy to clean. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first and second smoke baffles of the range hood according to an embodiment of the present utility model when they are closed.

[0017] Figure 2 This is a side sectional view of the range hood according to an embodiment of the present invention when the first and second smoke baffles are closed;

[0018] Figure 3 for Figure 2 Enlarged view of section I;

[0019] Figure 4 This is a bottom sectional view of the range hood according to an embodiment of the present invention when the first and second smoke baffles are closed;

[0020] Figure 5 This is a schematic diagram of some components of the range hood when the first and second smoke baffles are closed, according to an embodiment of the present utility model.

[0021] Figure 6 This is a schematic diagram of the first and second smoke baffles of the range hood according to an embodiment of the present utility model when they are open;

[0022] Figure 7 This is a side sectional view of the range hood in an embodiment of the present utility model when the first and second smoke baffles are opened;

[0023] Figure 8 for Figure 7 Enlarged view of section II;

[0024] Figure 9 This is a schematic diagram of some components of the range hood when the first and second smoke baffles are opened, according to an embodiment of the present utility model.

[0025] Figure 10 This is a schematic diagram showing the connection between the second smoke baffle bracket and the side smoke baffle of the range hood according to an embodiment of the present invention. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this utility model can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0028] See Figures 1-2 and Figures 6-7 A range hood includes a smoke collection hood 1, the bottom of which gradually slopes backward from top to bottom, and a smoke inlet 11 is provided at the bottom of the smoke collection hood 1.

[0029] The range hood also includes a smoke baffle assembly capable of opening or closing the smoke inlet 11. The smoke baffle assembly includes a first smoke baffle 21 and a second smoke baffle 22. The top of the first smoke baffle 21 is rotatably connected to the upper part of the smoke collection hood 1, and the bottom of the first smoke baffle 21 is rotatably connected to the second smoke baffle 22. When the smoke baffle assembly opens the smoke inlet 11, the first smoke baffle 21 and the second smoke baffle 22 are folded, with the second smoke baffle 22 tilting downwards from back to front. The side of the second smoke baffle 22 furthest from the first smoke baffle 21 (i.e., the rear side at this time) forms a guide surface 221. When the smoke baffle assembly closes the smoke inlet 11, the first smoke baffle 21 and the second smoke baffle 22 are unfolded, with the second smoke baffle 22 located behind the first smoke baffle 21, and the guide surface 221 located on the side of the second smoke baffle 22 furthest from the smoke collection hood 1. Preferably, the second smoke baffle 22 is made of glass, and the guide surface 221 of the second smoke baffle 22 faces outward after the power is turned off. Since the guide surface 221 is a smooth glass surface, it is easy to clean.

[0030] See Figures 2-9 The range hood also includes a motion mechanism that drives the first baffle plate 21 and the second baffle plate 22 to move.

[0031] The motion mechanism includes a bracket 33, a motor 34, a first crank 35, a second crank 36, and a connecting rod 37. The bracket 33 is disposed inside the smoke hood 1, the motor 34 is disposed on the bracket 33, and the motor 34 includes an output shaft 341. One end of the first crank 35 is rotatably disposed on the bracket 33, and the other end of the first crank 35 is connected to the side of the first smoke baffle 21 facing the inside of the smoke hood 1. One end of the connecting rod 37 is fixedly connected to the output shaft 341, and the other end of the connecting rod 37 is rotatably connected to one end of the second crank 36. The other end of the second crank 36 is rotatably connected to the body portion between the two ends of the first crank 35.

[0032] The motion mechanism also includes slide rail assemblies, which are respectively disposed on the left and right sides of the bottom of the smoke hood 1. The slide rail assembly includes a slide rail 31 and a slider 32 that slides along the extension direction of the slide rail 31. The tilt angle of the slide rail 31 corresponds to the tilt angle of the bottom of the smoke hood 1, and the left and right sides of the second smoke baffle 22 are directly or indirectly rotatably connected to the slider 32 on the corresponding side.

[0033] See Figure 5 and Figures 9-10 The smoke baffle assembly includes a first smoke baffle bracket 24 and a second smoke baffle bracket 25. The bottom of the first smoke baffle bracket 24 and the top of the second smoke baffle bracket 25 are rotatably connected. The first smoke baffle 21 is disposed on the side of the first smoke baffle bracket 24 away from the smoke collection hood 1, and the second smoke baffle 22 is disposed on the side of the second smoke baffle bracket 25 away from the smoke collection hood 1. When the smoke baffle assembly opens the smoke inlet 11, gaps are formed between the left and right sides of the first smoke baffle 21 and the second smoke baffle 22 and the smoke collection hood 1. The smoke baffle assembly also includes side smoke baffles 23 that can block these gaps. The side smoke baffles 23 are respectively disposed on the left and right sides of the second smoke baffle bracket 25, and the side smoke baffles 23 are provided with convex shafts 231 that are rotatably connected to the sliders 32 on the corresponding sides.

[0034] The movement of the first smoke baffle 21 and the second smoke baffle 22 is achieved using a crank-slider principle, ensuring that the guide surface 221 of the second smoke baffle 22 faces outward when the appliance is off. In the on state, the first smoke baffle 21 and the second smoke baffle 22 combine to form a robust triangular structure, which is sharper and stronger than a single-piece glass smoke baffle, reducing the feeling of intrusion. Compared to a single-plate fixed-axis rotating structure of the same height and depth when on, the downward movement height during the off process is greatly reduced, preventing intrusion into pots and pans on the stovetop.

[0035] See Figure 2 and Figure 6The range hood also includes an oil cup 4 located at the bottom of the smoke collection hood 1. When the smoke inlet 11 is closed by the baffle assembly, the bottom of the second baffle 22 is located inside the oil cup 4. The movement of the lower edge of the second baffle 22 is close to sliding. While the lower edge of the second baffle 22 is inside the oil cup 4 in the off state, it will not interfere with the oil cup 4 during the on state.

[0036] The range hood also includes a light 5 mounted on the second smoke baffle 22, and the light 5 is positioned on the airflow guide surface 221. The light 5 can point towards the cooktop whether the range hood is on or off.

Claims

1. A range hood, comprising a smoke collection hood (1), the bottom of which gradually slopes backward from top to bottom, and a smoke inlet (11) is provided at the bottom of the smoke collection hood (1). The range hood further comprises a baffle assembly capable of opening or closing the smoke inlet (11), characterized in that: The smoke baffle assembly includes a first smoke baffle (21) and a second smoke baffle (22). The top of the first smoke baffle (21) is rotatably connected to the upper part of the smoke collection hood (1), and the bottom of the first smoke baffle (21) is rotatably connected to the second smoke baffle (22). When the smoke baffle assembly opens the smoke inlet (11), the first smoke baffle (21) and the second smoke baffle (22) are folded. The second smoke baffle (22) tilts downward from back to front and... The lowest point is connected to the first smoke baffle (21), and the side of the second smoke baffle (22) away from the first smoke baffle (21) forms a guide surface (221). When the smoke baffle assembly closes the smoke inlet (11), the first smoke baffle (21) and the second smoke baffle (22) are in an unfolded state. The second smoke baffle (22) is located behind the first smoke baffle (21), and the guide surface (221) is located on the side of the second smoke baffle (22) away from the smoke collection hood (1).

2. The range hood according to claim 1, characterized in that: The range hood also includes a motion mechanism that drives the first smoke baffle (21) and the second smoke baffle (22) to move.

3. The range hood according to claim 2, characterized in that: The motion mechanism includes a bracket (33), a motor (34), a first crank (35), a second crank (36), and a connecting rod (37). The bracket (33) is located inside the smoke hood (1). The motor (34) is located on the bracket (33) and includes an output shaft (341). One end of the first crank (35) is rotatably mounted on the bracket (33), and the other end of the first crank (35) is connected to the side of the first smoke baffle (21) facing the inside of the smoke hood (1). One end of the connecting rod (37) is fixedly connected to the output shaft (341), and the other end of the connecting rod (37) is rotatably connected to one end of the second crank (36). The other end of the second crank (36) is rotatably connected to the body portion between the two ends of the first crank (35).

4. The range hood according to claim 2, characterized in that: The motion mechanism also includes a slide rail assembly, which is respectively set on the left and right sides of the bottom of the smoke hood (1). The slide rail assembly includes a slide rail (31) and a slider (32) that slides along the extension direction of the slide rail (31). The tilt angle of the slide rail (31) corresponds to the tilt angle of the bottom of the smoke hood (1). The left and right sides of the second smoke baffle (22) are directly or indirectly rotatably connected to the slider (32) on the corresponding side.

5. The range hood according to claim 4, characterized in that: When the smoke baffle assembly opens the smoke inlet (11), gaps are formed between the left and right sides of the first smoke baffle (21) and the second smoke baffle (22) and the smoke collection hood (1). The smoke baffle assembly also includes a side smoke baffle (23) that can block the gap.

6. The range hood according to claim 5, characterized in that: The smoke baffle assembly includes a first smoke baffle bracket (24) and a second smoke baffle bracket (25). The bottom of the first smoke baffle bracket (24) and the top of the second smoke baffle bracket (25) are rotatably connected. The first smoke baffle (21) is located on the side of the first smoke baffle bracket (24) away from the smoke hood (1). The second smoke baffle (22) is located on the side of the second smoke baffle bracket (25) away from the smoke hood (1). The side smoke baffles (23) are respectively located on the left and right sides of the second smoke baffle bracket (25). The side smoke baffles (23) are rotatably connected to the corresponding sliders (32).

7. The range hood according to claim 1, characterized in that: The range hood also includes an oil cup (4) located at the bottom of the smoke collection hood (1). When the smoke baffle assembly closes the smoke inlet (11), the bottom of the second smoke baffle (22) is located inside the oil cup (4).

8. The range hood according to claim 1, characterized in that: The range hood also includes a light (5) mounted on the second smoke baffle (22), and the light (5) is mounted on the air guide surface (221).

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