Range hood

Abstract

The range hood comprises a shell and a fan at least partially arranged in the shell, the fan comprises a fan input end arranged towards the front side, a first air inlet is formed in the upper portion of the front side of the shell, and the first air inlet corresponds to the upper portion of the fan input end. The range hood further comprises a first smoke barrier capable of opening or closing the first air inlet, and is characterized in that a second air inlet is formed in the middle of the front side of the shell and corresponds to the middle of the input end of the fan, and the range hood further comprises a second smoke barrier capable of opening or closing the second air inlet. When the first smoke barrier and the second smoke barrier are in an open state, the first smoke barrier and the second smoke barrier are located on the upper portion of the front side of the shell. Compared with the prior art, the smoke barrier has the advantages that the smoke barrier can be kept at the upper end of the machine while the air inlet moves downwards.

Description

Technical Field

[0001] The utility model relates to an oil fume purification device, in particular to an oil fume extractor. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It can quickly extract stove burnt waste and fumes generated during cooking and discharge them outdoors, reducing pollution and purifying the air.

[0003] For example, a range hood disclosed in Chinese utility model patent application number 201820784446.1 includes a casing, a panel, an oil guide plate and a fan system with a motor, wherein the panel and the oil guide plate are respectively arranged obliquely between the left and right side panels of the casing, the panel is located in front of the oil guide plate and the two are arranged at a distance, an air inlet is provided on the panel, a smoke baffle is rotatably mounted on the air inlet, an air suction port is provided on the oil guide plate, and an air inlet ring of the fan system is installed in the air suction port.

[0004] The air inlet of the side-suction range hood is composed of a smoke collecting chamber and a smoke baffle. The smoke collecting chamber plays a role in collecting smoke. The smoke baffle plays a role in collecting smoke when it is open, and the air inlet needs to be blocked when it is closed. The center of the burner of domestic stoves is close to the wall, so the width of the smoke collecting chamber of the range hood is small, and the distance from the wall to the open position of the smoke baffle is also small. However, the centers of the two burners in front of American stoves are far away from the wall, so both the air inlet and the open position of the smoke baffle need to be farther away from the wall. The smoke collecting chamber of the range hood of the above-mentioned patent is relatively wide, and the air inlet and the smoke baffle are opened at the upper end of the machine to collect the oil smoke from the burner far away from the wall. However, since the air inlet deviates from the center of the fan system, part of the airflow swirls inside the cavity, resulting in performance loss and affecting the oil smoke suction effect. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a range hood in view of the deficiencies in the above-mentioned prior art, which can keep the smoke baffle at the upper end of the machine while the air inlet is moved downward.

[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a range hood, comprising a shell and a fan at least partially arranged in the shell, the fan comprising a fan input end arranged toward the front side, a first air inlet is opened in the upper front side of the shell, the first air inlet is arranged corresponding to the upper part of the fan input end, the range hood also includes a first smoke baffle capable of opening or closing the first air inlet, and is characterized in that: a second air inlet is opened in the middle part of the front side of the shell, the second air inlet is arranged corresponding to the middle part of the fan input end, the range hood also includes a second smoke baffle capable of opening or closing the second air inlet, and when the first smoke baffle and the second smoke baffle are in an open state, the first smoke baffle and the second smoke baffle are located at the upper part of the front side of the shell.

[0007] By setting a second air inlet, the second air inlet is directly opposite to the fan input end of the fan, and cooperating with the first air inlet located above the second air inlet, the air inlet area is increased while the air inlet is moved downward, thereby improving the performance of the whole machine and the oil fume absorption effect, and the first smoke baffle and the second smoke baffle are both located at the upper part of the front side of the shell when opened, so that the whole machine can hold back the oil fume without blocking the line of sight.

[0008] In order to open the corresponding air inlet, the first smoke baffle and the second smoke baffle can both be flipped to open or close the corresponding air inlet.

[0009] In order to trap the oil smoke without blocking the line of sight, when the first smoke baffle and the second smoke baffle are in the open state, the second smoke baffle is located above the front side of the second air inlet, and the second smoke baffle is located in front of the first smoke baffle.

[0010] In order to drive the first smoke baffle and the second smoke baffle to move, the range hood further comprises a motion mechanism for driving the first smoke baffle and the second smoke baffle to flip.

[0011] In order to drive the first smoke deflector and the second smoke deflector to be linked, the motion mechanism includes a driving mechanism, a first connecting rod, a second connecting rod and a third connecting rod. The driving mechanism is arranged in a shell and includes an output end for driving the first connecting rod to rotate. The two ends of the second connecting rod are respectively rotatably connected to the first connecting rod and the third connecting rod. The third connecting rod is also fixed to the first smoke deflector, and the first connecting rod is also fixed to the second smoke deflector.

[0012] In order to facilitate limiting the motion trajectories of the first connecting rod and the third connecting rod and improve the stability of the motion mechanism, the motion mechanism also includes a bracket fixedly arranged in the shell, and the first connecting rod and the third connecting rod are respectively rotatably connected to the bracket.

[0013] Preferably, the first connecting rod includes a first main body part and a first crank part, one end of the first main body part is rotatably connected to the bracket, the rotation connection point of the first main body part and the bracket is A, the other end of the first main body part is connected to one end of the first crank part, the other end of the first crank part is connected to the side of the second smoke baffle facing the inner side of the shell, the part between the two ends of the first main body part is rotatably connected to the output end, the rotation connection point of the first main body part and the output shaft is B, thereby the second smoke baffle can perform a large range of non-fixed axis rotation,

[0014] Preferably, the third connecting rod includes a second main body part and a second crank part, one end of the second main body part is rotatably connected to the bracket, the rotation connection point between the second main body part and the bracket is C, the other end of the second main body part is rotatably connected to one end of the second connecting rod, the connection point between the second main body part and the second connecting rod is D, one end of the second crank part is connected to the part between the two ends of the second main body part, the other end of the second crank part is connected to the side of the first smoke baffle facing the inner side of the shell, the end of the second connecting rod away from the second main body part is rotatably connected to the first main body part, the rotation connection point between the second connecting rod and the first main body part is E, and the rotation connection point E is located on the first connecting rod between the rotation connection point B and the first crank part, so that the first smoke baffle can rotate on a fixed axis.

[0015] Preferably, the driving mechanism is an electric push rod, and the driving mechanism is rotatably mounted in the housing.

[0016] In order to make the whole machine more beautiful, a panel is provided at the lower front part of the shell, and the panel is located below the second air inlet. When the first smoke baffle and the second smoke baffle are in a closed state, the panel, the first smoke baffle and the second smoke baffle are arranged flush with each other on the side away from the shell.

[0017] Compared with the prior art, the advantages of the utility model are: by setting a second air inlet, the second air inlet is directly opposite to the fan input end of the fan, and then cooperating with the first air inlet located above the second air inlet, the air inlet area is increased while the air inlet is moved downward, thereby improving the performance of the whole machine and the oil fume absorption effect, and when the first smoke baffle and the second smoke baffle are opened, they are both located at the upper part of the front side of the shell, so that the whole machine can hold the oil fume without blocking the line of sight. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a range hood according to an embodiment of the utility model when two smoke baffles are closed;

[0019] Figure 2 It is a schematic diagram of the movement mechanism of the range hood when the two smoke baffles of the embodiment of the utility model are closed;

[0020] Figure 3 This is a schematic diagram of a range hood according to an embodiment of the utility model when two smoke baffles are opened;

[0021] Figure 4 It is a schematic diagram of the movement mechanism of the range hood when the two smoke baffles of the embodiment of the utility model are opened;

[0022] Figure 5 This is a schematic diagram of the position between the two smoke baffles and the fan when the two smoke baffles of the range hood according to an embodiment of the utility model are opened. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present utility model can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0025] See also Figure 1 to Figure 5 A range hood is a side-suction range hood, comprising a shell 1 and a fan 2 at least partially disposed in the shell 1. The fan 2 comprises a fan input terminal 21 disposed toward the front side. A first air inlet 31 is provided at the upper front portion of the shell 1, and the first air inlet 31 is disposed corresponding to the upper portion of the fan input terminal 21. A second air inlet 32 ​​is provided at the middle front portion of the shell 1, and the second air inlet 32 ​​is disposed corresponding to the middle portion of the fan input terminal 21, where the middle portion refers to the center of a circle that can cover the fan input terminal 21 (roughly circular). A panel 6 is provided at the lower front portion of the shell 1, and the panel 6 is located below the second air inlet 32.

[0026] The range hood further includes a first smoke baffle 41 and a second smoke baffle 42. The first smoke baffle 41 can be flipped to open or close the first air inlet 31. The second smoke baffle 42 can open or close the second air inlet 32. When the first smoke baffle 41 and the second smoke baffle 42 are in an open state, the first smoke baffle 41 and the second smoke baffle 42 can be located at the upper part of the front side of the housing 1. After the second smoke baffle 42 opens the second air inlet 32, the second smoke baffle 42 is located above the front side of the second air inlet 32, and the second smoke baffle 42 is located at the front side of the first smoke baffle 41. When the first smoke baffle 41 and the second smoke baffle 42 are in a closed state, the panel 6, the first smoke baffle 41 and the second smoke baffle 42 are arranged flush with one side away from the housing 1.

[0027] The range hood further includes a motion mechanism for driving the first smoke baffle 41 and the second smoke baffle 42 to flip. The motion mechanism includes a driving mechanism 51, a first connecting rod 52, a second connecting rod 53, a third connecting rod 54 and a bracket 55. The first driving mechanism 51 and the bracket 55 are both arranged on the inner side of the housing 1. The driving mechanism 51 includes an output end 511, and the bracket 55 is arranged on the inner side of the housing 1. The first connecting rod 52 includes a first main body part 521 and a first crank part 522. One end of the first main body part 521 is rotatably connected to the bracket 55, and the rotation connection point between the first main body part 521 and the bracket 55 is A, the other end of the first main body part 521 is connected to one end of the first crank part 522, and the other end of the first crank is connected to the side of the second smoke baffle 42 facing the inner side of the housing 1, and the part between the two ends of the first main body part 521 is rotatably connected to the output end 511. The rotation connection point between the first main body part 521 and the output end 511 is B, and the third connecting rod 54 includes a second main body part 541 and a second crank part 542. One end of the second main body part 541 is rotationally connected to the bracket 55, and the rotation connection point between the second main body part 541 and the bracket 55 is C. The other end of the second main body part 541 is rotationally connected to one end of the second connecting rod 53, and the connection point between the second main body part 541 and the second connecting rod 53 is D. One end of the second crank part 542 is connected to the part between the two ends of the second main body part 541, and the other end of the second crank part 542 is connected to the side of the first smoke baffle 41 facing the inner side of the housing 1. The end of the second connecting rod 53 away from the second main body part 541 is rotationally connected to the first main body part 521, and the rotation connection point between the second connecting rod 53 and the first main body part 521 is E. The rotation connection point E on the first connecting rod 52 is located between the rotation connection point B and the first crank part 522. The driving mechanism 51 in this embodiment is a linear driving module, such as an electric push rod, which is rotatably mounted in the housing 1. It can also be replaced by other existing driving mechanisms, such as a motor and a gear rack, a cylinder, etc. In addition, the driving mechanism 51 can also be a motor, which is driven by a connecting rod, etc., so that the first connecting rod 52 can perform the above-mentioned movement.

[0028] When the driving mechanism 51 pushes out the output end 511, the second smoke baffle 42 can open or close the second air inlet 32 ​​driven by the first connecting rod 52, and the first smoke baffle 41 can open or close the first air inlet 31 driven by the second connecting rod 53 and the third connecting rod 54. The second air inlet 32 ​​is arranged directly opposite the center of the fan 2, and combined with the first air inlet 31 located above the second air inlet 32, the air inlet area is increased while the air inlet moves downward, thereby improving the performance of the whole machine and the oil fume absorption effect. Moreover, when the first smoke baffle 41 and the second smoke baffle 42 are opened, they are both located at the upper part of the front side of the housing 1, and the whole machine can hold the oil fume without blocking the sight.

Claims

1. A range hood, comprising a housing (1) and a fan (2) at least partially disposed in the housing (1), the fan (2) comprising a fan input end (21) disposed toward the front side, a first air inlet (31) being provided at the upper front side of the housing (1), the first air inlet (31) being disposed corresponding to the upper part of the fan input end (21), the range hood further comprising a first smoke baffle (41) capable of opening or closing the first air inlet (31), characterized in that: A second air inlet (32) is provided in the middle of the front side of the shell (1), and the second air inlet (32) is arranged corresponding to the middle of the fan input end (21). The range hood also includes a second smoke baffle (42) capable of opening or closing the second air inlet (32). When the first smoke baffle (41) and the second smoke baffle (42) are in an open state, the first smoke baffle (41) and the second smoke baffle (42) are located at the upper part of the front side of the shell (1).

2. The range hood according to claim 1, characterized in that: The first smoke baffle (41) and the second smoke baffle (42) can both be flipped to open or close the corresponding air inlet.

3. The range hood according to claim 2, characterized in that: When the first smoke baffle (41) and the second smoke baffle (42) are in an open state, the second smoke baffle (42) is located above the front side of the second air inlet (32), and the second smoke baffle (42) is located in front of the first smoke baffle (41).

4. The range hood according to claim 3, characterized in that: The range hood further comprises a motion mechanism for driving the first smoke baffle (41) and the second smoke baffle (42) to flip.

5. The range hood according to claim 4, characterized in that: The motion mechanism comprises a driving mechanism (51), a first connecting rod (52), a second connecting rod (53) and a third connecting rod (54); the driving mechanism (51) is arranged in the housing (1) and comprises an output end (511) for driving the first connecting rod (52) to rotate; two ends of the second connecting rod (53) are respectively rotatably connected to the first connecting rod (52) and the third connecting rod (54); the third connecting rod (54) is also fixed to the first smoke baffle (41); and the first connecting rod (52) is also fixed to the second smoke baffle (42).

6. The range hood according to claim 5, characterized in that: The motion mechanism further comprises a bracket (55) fixedly arranged in the housing (1), and the first connecting rod (52) and the third connecting rod (54) are respectively rotatably connected to the bracket (55).

7. The range hood according to claim 6, characterized in that: The first connecting rod (52) comprises a first main body portion (521) and a first crank portion (522), one end of the first main body portion (521) is rotatably connected to the bracket (55), and the rotation connection point between the first main body portion (521) and the bracket (55) is A; the other end of the first main body portion (521) is connected to one end of the first crank portion (522), and the other end of the first crank portion (522) is connected to a side of the second smoke baffle (42) facing the inner side of the shell (1); the portion between the two ends of the first main body portion (521) is rotatably connected to the output end (511), and the rotation connection point between the first main body portion (521) and the output end (511) is B.

8. The range hood according to claim 7, characterized in that: The third connecting rod (54) comprises a second main body portion (541) and a second crank portion (542), one end of the second main body portion (541) is rotatably connected to the bracket (55), and the rotation connection point between the second main body portion (541) and the bracket (55) is C. The other end of the second main body portion (541) is rotatably connected to one end of the second connecting rod (53), and the connection point between the second main body portion (541) and the second connecting rod (53) is D. One end of the second crank portion (542) is rotatably connected to the bracket (55). The second main body part (541) is partially connected between the two ends, the other end of the second crank part (542) is connected to the side of the first smoke baffle (41) facing the inner side of the shell (1), and the end of the second connecting rod (53) away from the second main body part (541) is rotatably connected to the first main body part (521), and the rotation connection point between the second connecting rod (53) and the first main body part (521) is E, and the rotation connection point E is located on the first connecting rod (52) between the rotation connection point B and the first crank part (522).

9. The range hood according to claim 7, characterized in that: The driving mechanism (51) is an electric push rod, and the driving mechanism (51) is rotatably mounted in the housing (1).

10. The range hood according to any one of claims 1 to 9, characterized in that: A panel (6) is provided at the lower front part of the shell (1), and the panel (6) is located below the second air inlet (32); when the first smoke baffle (41) and the second smoke baffle (42) are in a closed state, the panel (6), the first smoke baffle (41) and the second smoke baffle (42) are arranged flush with each other on a side away from the shell (1).

Images