Range hood

Abstract

The utility model discloses a range hood, which comprises a shell component, an air inlet component and an air outlet component, wherein the shell component is provided with an air inlet part; the smoke gathering assembly comprises a smoke gathering plate, a first support and a second support, and the first support and the second support are fixedly installed on the driving side and the driven side of the smoke gathering plate respectively; the driving mechanism comprises a power component, a driving arm and a driven arm, the two opposite ends of the driving arm are connected with the shell assembly and the first support respectively, the two opposite ends of the driven arm are connected with the shell assembly and the second support respectively, and the power component is connected with the driving arm; a driving installation hole position is formed between the driving arm and the first support, a driven installation hole position is formed between the driven arm and the second support, the driving installation hole position rotates or translates relative to the driven installation hole position, or the connecting position of the driving arm and the shell assembly translates relative to the connecting position of the driven arm and the shell assembly. According to the range hood disclosed by the utility model, the driving side and the driven side of the smoke gathering assembly are closed in place under the condition that the cost is not increased.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a range hood for absorbing cooking oil. Background Technology

[0002] Most existing range hoods are equipped with an automatic rotating smoke collection plate. The drive motor is usually located on the drive side of the range hood. When the smoke collection plate is closed, the driven side of the smoke collection plate does not close tightly due to gravity, which greatly affects the appearance.

[0003] The current method typically involves adding a drive shaft to connect the driving side and the driven side in order to achieve synchronous rotation. However, due to gravity and assembly tolerances, the movement of the driven side of the smoke collector plate still lags behind that of the driving side, and adding a drive shaft will increase costs. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes a range hood that ensures that both the driving side and the driven side of the smoke collection component are closed in place without increasing costs.

[0005] The range hood described above achieves its function through the following technical solution:

[0006] A range hood includes: a housing assembly with an air inlet for smoke to pass through on its smoke inlet surface; a smoke collection assembly including a smoke collection plate, a first bracket, and a second bracket, the smoke collection plate being used to open or close the air inlet, the first bracket and the second bracket being fixedly installed on the driving side and driven side of the back of the smoke collection plate, respectively; and a drive mechanism including a power component, a drive arm, and a driven arm, the opposite ends of the drive arm being movably connected to the housing assembly and the first bracket, the opposite ends of the driven arm being movably connected to the housing assembly and the second bracket, the power component being disposed within the housing assembly and its output end being movably connected to the drive arm; an active mounting hole is formed between the drive arm and the first bracket, and a driven mounting hole is formed between the driven arm and the second bracket, the active mounting hole rotating clockwise relative to the driven mounting hole or translating toward the smoke collection plate, or the connection between the drive arm and the housing assembly translating toward the smoke collection plate relative to the connection between the driven arm and the housing assembly.

[0007] In some embodiments, the active mounting hole includes a first active mounting hole and a second active mounting hole. The first active mounting hole is provided at the end of the drive arm near the first bracket, and the second active mounting hole is provided at the position corresponding to the first active mounting hole on the first bracket. The driven mounting hole includes a first driven mounting hole and a second driven mounting hole. The first driven mounting hole is provided at the end of the driven arm near the second bracket, and the second driven mounting hole is provided at the position corresponding to the first driven mounting hole on the second bracket. The first active mounting hole rotates clockwise relative to the first driven mounting hole or translates toward the smoke collecting plate, or the second active mounting hole rotates clockwise relative to the second driven mounting hole or translates toward the smoke collecting plate.

[0008] In some embodiments, the first active mounting hole is rotated 1-5° clockwise relative to the first driven mounting hole, or the second active mounting hole is rotated 1-5° clockwise relative to the second driven mounting hole.

[0009] In some embodiments, the first active mounting hole is shifted 1-3 mm relative to the first passive mounting hole toward the smoke collecting plate, or the second active mounting hole is shifted 1-3 mm relative to the second passive mounting hole toward the smoke collecting plate.

[0010] In some embodiments, the drive mechanism further includes a drive bracket and a driven bracket, the drive arm is connected to the housing assembly via the drive bracket, the power component is mounted on the drive bracket, and the driven arm is connected to the housing assembly via the driven bracket.

[0011] In some embodiments, the connection between the drive arm and the drive bracket is translated relative to the connection between the driven arm and the driven bracket toward the smoke-collecting plate.

[0012] In some embodiments, the connection between the drive arm and the drive bracket is shifted 1-3 mm relative to the connection between the driven arm and the driven bracket toward the smoke collection plate.

[0013] In some embodiments, the drive bracket has a first hinge hole, the drive shaft passes laterally through the first hinge hole and is connected to the drive arm; the driven bracket has a second hinge hole, the driven shaft passes laterally through the second hinge hole and is connected to the driven arm, and the drive shaft translates relative to the driven shaft toward the smoke-collecting plate.

[0014] In some embodiments, the drive mechanism further includes a linkage assembly, through which the output end of the power component is movably connected to the drive arm.

[0015] In some embodiments, the smoke inlet surface of the housing assembly is further provided with a lower air inlet located below the air inlet, and a guide plate extending downward toward the interior of the housing assembly is provided at the upper edge of the lower air inlet.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] The range hood of this utility model achieves the following: by rotating the active mounting hole on the driving side clockwise relative to the driven mounting hole on the driven side or moving it towards the smoke collection plate, or by moving the connection between the driving arm and the outer shell assembly relative to the connection between the driven arm and the outer shell assembly towards the smoke collection plate, the driving side of the smoke collection plate is higher than the driven side of the smoke collection plate. This ensures that the driven side of the smoke collection plate closes first, followed by the driving side, without increasing costs, and guarantees that both sides of the smoke collection plate are closed in place. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the range hood in the open state in Embodiment 1 of this utility model;

[0019] Figure 2 This is a cross-sectional view of the range hood in the open state in Embodiment 1 of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the smoke collection component and the drive mechanism in Embodiment 1 of this utility model. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the structure of the smoke collection component and the drive mechanism in Embodiment 1 of this utility model. Figure 2 ;

[0022] Figure 5 This is a left view of the driving arm and the driven arm in Embodiment 1 of this utility model;

[0023] Figure 6 This is a schematic diagram of the range hood in the closed state in Embodiment 1 of this utility model;

[0024] Figure 7 This is a right view of the driving arm and the driven arm in Embodiment 2 of this utility model;

[0025] Figure 8 This is a left view of the drive bracket and the driven bracket in Embodiment 3 of this utility model.

[0026] In the diagram: 1-Outer shell assembly, 11-Upper smoke inlet section, 112-Secondary air inlet, 12-Lower smoke inlet section, 121-Secondary air inlet, 13-Opening; 21-Smoke gathering plate, 22-First bracket, 221-Second active mounting hole, 23-Second bracket, 231-Second driven mounting hole; 31-Power component, 32-Drive arm, 321-First active mounting hole, 33-Driven arm, 331-First driven mounting hole, 34-Drive bracket, 341-First hinge hole, 342-Active rotating shaft, 35-Driven bracket, 351-Second hinge hole, 352-Driven rotating shaft, 36-Connecting rod assembly; 4-Guide plate; 5-Oil mesh assembly. Detailed Implementation

[0027] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0028] Example 1

[0029] refer to Figure 1-6 This embodiment provides a range hood, including a housing assembly 1, a smoke collection assembly, and a drive mechanism. The housing assembly 1 has an air inlet on its smoke inlet surface for smoke to pass through. In this embodiment, the air inlet includes a main air inlet (not shown) and two secondary air inlets 112, respectively located on the left and right sides of the main air inlet. An oil filter assembly 5 is detachably installed at the main air inlet. The smoke collection assembly includes a smoke collection plate 21, a first bracket 22, and a second bracket 23. The smoke collection plate 21 is used to open or close the air inlet. The first bracket 22 and the second bracket 23 are respectively fixedly installed on the driving side and driven side of the back of the smoke collection plate 21. The drive mechanism includes a power component 31, a drive arm 32, and a driven arm 33. The opposite ends of the drive arm 32 are movably connected to the housing assembly 1 and the first bracket 22, respectively. The opposite ends of the driven arm 33 are movably connected to the housing assembly 1 and the second bracket 23, respectively. The power component 31 is disposed inside the housing assembly 1, and its output end is movably connected to the drive arm 32.

[0030] An active mounting hole is formed between the drive arm 32 and the first bracket 22, and a driven mounting hole is formed between the driven arm 33 and the second bracket 23. The active mounting hole rotates clockwise relative to the driven mounting hole or translates towards the smoke collecting plate 21 in a direction perpendicular to the smoke collecting plate 21, or the connection between the drive arm 32 and the housing assembly 1 translates towards the smoke collecting plate 21 in a direction perpendicular to the smoke collecting plate 21 relative to the connection between the driven arm 33 and the housing assembly 1. This makes the drive side of the smoke collecting plate 21 higher than the driven side of the smoke collecting plate 21, so that even if the switching stroke of the driven side of the smoke collecting plate 21 is less than the switching stroke of the drive side of the smoke collecting plate 21, the driven side of the smoke collecting plate 21 closes first and the drive side closes later. Without increasing costs, this ensures that both sides of the smoke collecting plate 21 are closed in place.

[0031] refer to Figure 1-2 and Figure 6 Furthermore, a lower air inlet 121 located below the air inlet section is provided on the smoke inlet surface of the outer casing assembly 1 to form a dual suction effect, increase the unit smoke inlet area, and improve the smoke collection effect. In this embodiment, the smoke inlet surface includes an upper smoke inlet section 11 and a lower smoke inlet section 12 arranged at an angle. Both the upper smoke inlet section 11 and the lower smoke inlet section 12 are arranged inclined from bottom to top and forward. The slope of the lower smoke inlet section 12 is less than that of the upper smoke inlet section 11. An air inlet section is provided in the upper smoke inlet section 11, and a lower air inlet 121 is provided in the lower smoke inlet section 12.

[0032] A guide plate 4 is provided at the upper edge of the lower air inlet 121, extending downward toward the interior of the housing assembly 1. The guide plate 4 is used to guide the oil fumes flowing in from the lower air inlet 121 to the rear lower part of the interior of the housing assembly 1 to reduce airflow interference. The guide plate 4 is also used to receive fluids (such as oil or cleaning water) and guide the fluids to the rear lower part of the interior of the housing assembly 1 to prevent the fluids from dripping directly downward through the lower air inlet 121.

[0033] refer to Figure 3-5 The active mounting holes include a first active mounting hole 321 and a second active mounting hole 221. The first active mounting hole 321 is provided at the end of the drive arm 32 near the first bracket 22, and the second active mounting hole 221 is provided at the position corresponding to the first active mounting hole on the first bracket 22. The driven mounting holes include a first driven mounting hole 331 and a second driven mounting hole 231. The first driven mounting hole 331 is provided at the end of the driven arm 33 near the second bracket 23, and the second driven mounting hole 231 is provided at the position corresponding to the first driven mounting hole on the second bracket 23. The first active mounting hole 321 rotates clockwise relative to the first driven mounting hole 331, or the second active mounting hole 221 rotates clockwise relative to the second driven mounting hole 231, wherein the rotation angle is 1-5°, so as to tilt the smoke collecting plate 21 relative to the upper smoke inlet section 11 of the smoke inlet surface, so as to achieve the effect of the driven side of the smoke collecting plate 21 closing first.

[0034] refer to Figure 5 In this embodiment, three first active mounting holes 321 are provided at the end of the drive arm 32 near the first bracket 22, and three first passive mounting holes 331 are provided at the end of the driven arm 33 near the second bracket 23. The three first passive mounting holes 331 and the three first active mounting holes 321 correspond one-to-one to form three pairs of mounting holes. Taking the center point of the uppermost pair of mounting holes as a fixed point, the drive arm 32 rotates clockwise relative to the driven arm 33 so that the center point of the first active mounting hole 321 in the remaining two pairs of mounting holes rotates clockwise relative to the first passive mounting hole 331, thereby compensating for the margin required for early closure of the driven side due to gravity. Of course, if the hole position of the drive arm 32 relative to the driven arm 33 is not rotated, the hole position of the first bracket 22 relative to the second bracket 23 can also be rotated, that is, the second active mounting hole 221 can be rotated clockwise relative to the second passive mounting hole 231 to achieve the same effect.

[0035] refer to Figure 2-4 Furthermore, the drive mechanism also includes a drive bracket 34 and a driven bracket 35. The drive arm 32 is connected to the housing assembly 1 via the drive bracket 34, and the power component 31 is mounted on the drive bracket 34, thereby facilitating the stable and reliable mounting of the power component 31 and the drive bracket 34 onto the housing assembly 1. The driven arm 33 is connected to the housing assembly 1 via the driven bracket 35, thereby facilitating the stable and reliable connection of the driven bracket 35 to the housing assembly 1.

[0036] In this embodiment, the drive bracket 34 has a first hinge hole 341, and the drive shaft 342 passes laterally through the first hinge hole 341 and is connected to the drive arm 32 to form an active hinge. The driven bracket 35 has a second hinge hole 351, and the driven shaft 352 passes laterally through the second hinge hole 351 and is connected to the driven arm 33 to form a driven hinge.

[0037] refer to Figure 3 Furthermore, the drive mechanism also includes a linkage assembly 36, and the power component 31 is a drive motor. Its output end is movably connected to the drive arm 32 through the linkage assembly 36, so that the power component 31 can reliably drive the drive arm 32 to move through the linkage assembly 36, thereby realizing the opening and closing movement of the smoke collection component.

[0038] Example 2

[0039] refer to Figure 7The difference between this embodiment and embodiment 1 is that the first active mounting hole 321 is translated relative to the first passive mounting hole 331 in a direction perpendicular to the smoke collecting plate 21 toward the smoke collecting plate 21, or the second active mounting hole 221 is translated relative to the second passive mounting hole 231 in a direction perpendicular to the smoke collecting plate 21 toward the smoke collecting plate 21. The translation distance is 1-3mm, so that the driving side of the smoke collecting plate 21 is higher than the passive side of the smoke collecting plate 21, so that the smoke collecting plate is tilted relative to the upper smoke inlet section 11 of the smoke inlet surface, thus achieving the effect of the passive side of the smoke collecting plate closing first.

[0040] Example 3

[0041] refer to Figure 8 The difference between this embodiment and embodiment 1 or 2 is that the connection between the drive arm 32 and the drive bracket 34 is translated relative to the connection between the driven arm 33 and the driven bracket 35 in a direction perpendicular to the smoke collecting plate 21, so that the drive side of the smoke collecting plate 21 is higher than the driven side of the smoke collecting plate 21, thereby realizing that the driven side of the smoke collecting plate closes first and the drive side closes later, ensuring that both sides of the smoke collecting plate are closed in place without increasing costs.

[0042] In this embodiment, the connection between the drive arm 32 and the drive bracket 34 is translated 1-3mm relative to the connection between the driven arm 33 and the driven bracket 35 in a direction perpendicular to the smoke-collecting plate 21. Specifically, the active rotating shaft 342 is translated relative to the driven rotating shaft 352 in a direction perpendicular to the smoke-collecting plate 21 towards the smoke-collecting plate, that is, the active hinge is translated relative to the driven hinge towards the smoke-collecting plate.

[0043] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A range hood, characterized in that, include: The outer casing assembly (1) has an air inlet on its smoke inlet surface for the passage of smoke gas; The smoke collection assembly includes a smoke collection plate (21), a first bracket (22), and a second bracket (23). The smoke collection plate (21) is used to open or close the air inlet. The first bracket (22) and the second bracket (23) are respectively fixedly installed on the driving side and the driven side of the back of the smoke collection plate (21). as well as The drive mechanism includes a power component (31), a drive arm (32), and a driven arm (33). The two ends of the drive arm (32) are movably connected to the housing assembly (1) and the first bracket (22), respectively. The two ends of the driven arm (33) are movably connected to the housing assembly (1) and the second bracket (23), respectively. The power component (31) is disposed inside the housing assembly (1), and its output end is movably connected to the drive arm (32). as well as An active mounting hole is formed between the drive arm (32) and the first bracket (22), and a passive mounting hole is formed between the driven arm (33) and the second bracket (23). The active mounting hole rotates clockwise relative to the driven mounting hole or translates toward the smoke collection plate (21), or the connection between the drive arm (32) and the housing assembly (1) translates toward the smoke collection plate (21) relative to the connection between the driven arm (33) and the housing assembly (1).

2. The range hood according to claim 1, characterized in that, The active mounting holes include a first active mounting hole (321) and a second active mounting hole (221). The first active mounting hole (321) is provided at one end of the drive arm (32) near the first bracket (22), and the second active mounting hole (221) is provided at the position of the first active mounting hole corresponding to the first active mounting hole. The driven mounting hole includes a first driven mounting hole (331) and a second driven mounting hole (231). The first driven mounting hole (331) is provided at one end of the driven arm (33) near the second bracket (23), and the second driven mounting hole (231) is provided at the position corresponding to the first driven mounting hole in the second bracket (23). The first active mounting hole (321) rotates clockwise relative to the first passive mounting hole (331) or moves toward the smoke collecting plate (21), or the second active mounting hole (221) rotates clockwise relative to the second passive mounting hole (231) or moves toward the smoke collecting plate (21).

3. A range hood according to claim 2, characterized in that, The first active mounting hole (321) is rotated 1-5° clockwise relative to the first passive mounting hole (331), or the second active mounting hole (221) is rotated 1-5° clockwise relative to the second passive mounting hole (231).

4. A range hood according to claim 2, characterized in that, The first active mounting hole (321) is shifted 1-3mm relative to the first passive mounting hole (331) toward the smoke collecting plate (21), or the second active mounting hole (221) is shifted 1-3mm relative to the second passive mounting hole (231) toward the smoke collecting plate (21).

5. A range hood according to any one of claims 1-4, characterized in that, The drive mechanism further includes a drive bracket (34) and a driven bracket (35). The drive arm (32) is connected to the housing assembly (1) through the drive bracket (34). The power component (31) is mounted on the drive bracket (34). The driven arm (33) is connected to the housing assembly (1) through the driven bracket (35).

6. A range hood according to claim 5, characterized in that, The connection between the drive arm (32) and the drive bracket (34) moves towards the smoke collection plate (21) relative to the connection between the driven arm (33) and the driven bracket (35).

7. A range hood according to claim 6, characterized in that, The connection between the drive arm (32) and the drive bracket (34) is shifted 1-3mm relative to the connection between the driven arm (33) and the driven bracket (35) toward the smoke collection plate (21).

8. A range hood according to claim 5, characterized in that, The drive bracket (34) has a first hinge hole (341), the drive shaft (342) passes through the first hinge hole (341) laterally and is connected to the drive arm (32); the driven bracket (35) has a second hinge hole (351), the driven shaft (352) passes through the second hinge hole (351) laterally and is connected to the driven arm (33), and the drive shaft (342) moves relative to the driven shaft (352) toward the smoke collecting plate (21).

9. A range hood according to claim 1, characterized in that, The drive mechanism also includes a linkage assembly (36), and the output end of the power component (31) is movably connected to the drive arm (32) through the linkage assembly (36).

10. A range hood according to claim 1, characterized in that, The smoke inlet surface of the outer casing assembly (1) is also provided with a lower air inlet (121) located below the air inlet section, and a guide plate (4) extending downward toward the interior of the outer casing assembly (1) is provided at the upper edge of the lower air inlet (121).

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