Rectification mechanism and lampblack treatment device

Abstract

The utility model relates to the technical field of household appliances, in particular to a rectifying mechanism and an oil smoke treatment device. The rectifying mechanism and the lampblack treatment device comprise a baffle and a rectifying blade assembly, a through hole is formed in the baffle, the rectifying blade assembly is arranged on the periphery of the through hole, the rectifying blade assembly comprises movable blades and static blades, the movable blades and the static blades are arranged from outside to inside in the radial direction of the through hole, and the movable blades can rotate around the axis perpendicular to the baffle. The posture of the movable blade relative to the baffle is adjustable, the movable blade can adapt to different types of cyclones by adjusting the posture of the movable blade, the rectification blade assembly can be matched with different degrees of cyclones, and the good rectification effect on the different degrees of cyclones can be achieved; and the range hood can achieve a better oil smoke exhaust effect and a mute use effect when working at different gears.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a rectifying mechanism and an oil fume treatment device. Background Art

[0002] An oil fume machine generally includes a housing and a fan system disposed therein. The housing includes an air inlet and an air outlet. The fan system can purify the oil fume entering from the air inlet, and the purified gas is discharged from the air outlet. A rectifying mechanism is further disposed downstream of the fan system, and the rectifying mechanism can guide the purified gas to the air outlet. However, the existing oil fume machines generate relatively large noise during use.

[0003] The oil fume machine further includes a rectifying mechanism, which includes a baffle and a rectifying vane assembly. The baffle is located inside the housing and is provided with a through hole. The rectifying vane assembly is disposed on the outer periphery of the through hole. The air outlet and the rectifying vane assembly are located on both sides of the baffle. The fluid purified by the fan system is rectified under the action of the rectifying vane assembly, which can effectively reduce the air vortex at the air outlet, reduce the kinetic energy loss of the fluid, improve the air volume and exhaust efficiency of the oil fume machine, and achieve better oil fume exhaust performance of the oil fume machine.

[0004] At different working gears of the oil fume machine, the degree of air vortex of the fluid downstream of the fan system is different. A rectifying vane assembly with a single shape cannot achieve matching of different degrees of air vortex, and the rectifying vane assembly cannot rectify different degrees of air vortex well. As a result, when the oil fume machine operates at certain working gears, there are still problems of poor oil fume exhaust performance and high use noise of the oil fume machine.

[0005] Therefore, it is urgent to design a new rectifying mechanism and an oil fume treatment device to improve the above problems. Summary of the Utility Model

[0006] An object of the utility model is to provide a rectifying mechanism to ensure good oil fume exhaust effect and silent use effect when the oil fume machine operates at different gears.

[0007] To achieve the above object, the utility model adopts the following technical solutions:

[0008] A rectifying mechanism, the rectifying mechanism includes:

[0009] A baffle, on which a through hole is provided; and

[0010] A rectifying vane assembly, disposed on the outer periphery of the through hole. The rectifying vane assembly includes moving vanes and static vanes. Along the radial direction of the through hole, the moving vanes and the static vanes are arranged from outside to inside. The moving vanes can rotate around an axis perpendicular to the baffle, and the attitude of the moving vanes relative to the baffle is adjustable.

[0011] As an optional solution, the rectifying mechanism further includes:

[0012] A driving mechanism capable of driving the moving blade to rotate.

[0013] As an alternative solution, the moving blade is an arc-shaped plate, the arc-shaped plate has an outer arc surface, the driving mechanism includes a driving motor, a driving wheel and a rotating ring, and the through hole has a center line L c , the rotating ring is arranged on the baffle and can rotate around the center line L c rotate, the rotating ring includes an inner ring surface and an outer ring surface, the driving motor is arranged on the baffle, the driving wheel is arranged at the output end of the driving motor, the outer periphery of the driving wheel abuts against the outer ring surface, and the inner ring surface abuts against the outer arc surface.

[0014] As an alternative solution, the driving wheel is made of a material such as silica gel, rubber or polyurethane; and / or

[0015] the rotating ring is made of a material such as silica gel, rubber or polyurethane; and / or

[0016] the moving blade is made of a material such as silica gel, rubber or polyurethane.

[0017] As an alternative solution, the through hole has a center line L c , the fluid flowing out of the stationary blade moves in the exit direction T, and the exit direction T intersects with the center line L c intersect.

[0018] As an alternative solution, the rectifying vane assembly is arranged as at least two, and the at least two rectifying vane assemblies are distributed in a spiral shape around the center line L of the through hole c distributed.

[0019] Another object of the present invention is to provide an oil fume treatment device to ensure good oil fume exhaust effect and silent use effect when the range hood works at different gears.

[0020] To achieve this purpose, the present invention adopts the following technical solutions:

[0021] An oil fume treatment device includes a housing, an air outlet is provided on the housing, the oil fume treatment device further includes the rectifying mechanism as above, the baffle is located inside the housing, and the air outlet and the rectifying vane assembly are located on both sides of the baffle.

[0022] As an alternative solution, the oil fume treatment device further includes a diversion pipe, one end of the diversion pipe is communicated with the through hole, the other end of the diversion pipe is communicated with the air outlet, and the housing, the baffle and the diversion pipe together form a sound absorption cavity.

[0023] As an alternative solution, the rectifying mechanism further includes a driving mechanism capable of driving the moving blade to move, and part of the driving mechanism is located in the sound absorption cavity.

[0024] As an alternative solution, the side of the baffle away from the draft tube is a receiving cavity, and the oil fume treatment device further includes a fan system located in the receiving cavity.

[0025] Advantages of the present utility model:

[0026] The rectifying mechanism provided by the present utility model includes a baffle and a rectifying vane assembly. A through hole is formed in the baffle, and the rectifying vane assembly is arranged on the outer periphery of the through hole. The rectifying vane assembly includes moving vanes and static vanes. The moving vanes and the static vanes are arranged from outside to inside along the radial direction of the through hole. The moving vanes can rotate around an axis perpendicular to the baffle, and the attitude of the moving vanes relative to the baffle is adjustable. By adjusting the attitude of the moving vanes to adapt to different types of air vortices, the rectifying vane assembly can be adapted to air vortices of different degrees, and can perform a good rectifying effect on air vortices of different degrees, ensuring that the range hood can achieve good oil fume exhaust effect and silent use effect when working at different gears.

[0027] The oil fume treatment device provided by the present utility model, by applying the above rectifying mechanism, can perform a good rectifying effect on air vortices of different degrees, ensuring that the range hood can achieve good oil fume exhaust effect and silent use effect when working at different gears. Description of the drawings

[0028] Figure 1 is a schematic structural diagram of the oil fume treatment device provided by an embodiment of the present utility model Figure 1 ;

[0029] Figure 2 is a schematic structural diagram of the oil fume treatment device provided by an embodiment of the present utility model Figure 2 ;

[0030] Figure 3 is a schematic structural diagram of the rectifying mechanism and the draft tube provided by an embodiment of the present utility model;

[0031] Figure 4 is a partial enlarged view of the rectifying mechanism provided by an embodiment of the present utility model;

[0032] Figure 5 is a schematic structural diagram of the baffle provided by an embodiment of the present utility model;

[0033] Figure 6 is a cross-sectional view of the rotating ring provided by an embodiment of the present utility model.

[0034] In the figure:

[0035] 100, oil fume treatment device;

[0036] 10. Housing; 11. Main chassis; 111. Accommodating cavity; 112. Sound-absorbing cavity; 113. Air outlet; 12. Main body of the smoke collecting cavity; 121. Air inlet; 122. Smoke collecting cavity

[0037] 20. Fan system

[0038] 30. Rectifying mechanism; 31. Baffle; 311. Through hole; 312. Arc-shaped groove; 32. Rectifying vane assembly; 321. Static vane; 3211. Inner edge; 3212. Outer edge; 3213. Flow guiding surface; 322. Moving vane; 3221. Moving vane body; 32211. Outer arc surface; 3222. Rotating shaft; 33. Driving mechanism; 331. Driving motor; 332. Driving wheel; 333. Rotating ring; 3331. Rotating ring body; 33311. Inner ring surface; 33312. Outer ring surface; 3332. Limiting part; 3333. Connecting part

[0039] 50. Diversion pipe; 51. Noise reduction through hole Detailed implementation mode

[0040] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and implementation modes. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the convenience of description, only parts related to the present invention are shown in the drawings, rather than all of them.

[0041] In the description of the present invention, unless otherwise clearly defined 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 integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0043] In the description of the embodiments of the present disclosure, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for convenience of description and simplifying operations, 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] As Figure 1 and Figure 2 shown, this embodiment provides an oil fume treatment device 100. The oil fume treatment device 100 can be an oil fume extractor, an integrated stove, an oil fume purification system, etc. This embodiment takes an oil fume extractor as an example for illustration. The oil fume extractor includes a housing 10 and a fan system 20. The housing 10 includes a main machine box 11 and a smoke collecting cavity main body 12. An inner cavity and an air outlet 113 are provided on the main machine box 11, and the air outlet 113 is communicated with the inner cavity. A smoke collecting cavity body 122 and an air inlet 121 are provided on the smoke collecting cavity main body 12, and the air inlet 121 is communicated with the smoke collecting cavity body 122. The inner cavity is communicated with the smoke collecting cavity body 122. The fan system 20 is arranged in the inner cavity. When the fan system 20 works, the oil fume outside the smoke collecting cavity main body 12 can sequentially pass through the air inlet 121, the smoke collecting cavity body 122 and the inner cavity. The oil fume is purified in the fan system 20, and the purified gas is discharged from the air outlet 113 to the outside. Among them, the smoke collecting cavity main body 12 can have a good effect of gathering oil fume, which is convenient for the oil fume extractor to absorb oil fume better.

[0045] It should be noted that the oil fume extractor shown in the embodiments of the present disclosure can be a top - suction type oil fume extractor, but the oil fume extractor applicable to the fan system 20 is not limited to this form. The oil fume extractor can also be other types such as a low - suction type oil fume extractor, a side - suction type oil fume extractor, etc.

[0046] As Figures 1 to 3 shown, the oil fume extractor further includes a rectifying mechanism 30. The rectifying mechanism 30 includes a baffle 31 and a rectifying vane assembly 32. The baffle 31 is located inside the housing 10 and is provided with a through - hole 311. The rectifying vane assembly 32 is arranged on the outer periphery of the through - hole 311. The air outlet 113 and the rectifying vane assembly 32 are located on both sides of the baffle 31. The fluid purified by the fan system 20 is rectified under the action of the rectifying vane assembly 32, which can effectively reduce the air vortex at the air outlet 113, reduce the kinetic energy loss of the fluid, improve the air discharge volume and air discharge efficiency of the oil fume extractor, and realize better oil fume discharge performance of the oil fume extractor. In addition, due to the effective reduction of the air vortex, the noise of the oil fume extractor during operation can be effectively reduced, realizing the silent use of the oil fume extractor.

[0047] When the range hood is in different working gears, the degree of air vortex of the fluid downstream of the fan system 20 is different. The single-shaped rectifying vane assembly 32 cannot achieve the matching of different degrees of air vortices, and the rectifying vane assembly 32 cannot rectify different degrees of air vortices well. As a result, when the range hood is working in certain working gears, there will still be problems such as poor oil fume exhaust performance and high operating noise of the range hood.

[0048] To solve the above problems, as Figure 3 shown, the rectifying vane assembly 32 includes moving vanes 322 and static vanes 321. The moving vanes 322 and the static vanes 321 are arranged from outside to inside along the radial direction of the through hole 311. The moving vanes 322 can rotate around an axis perpendicular to the baffle 31, and the attitude of the moving vanes 322 relative to the baffle 31 is adjustable. By adjusting the attitude of the moving vanes 322 to adapt to different types of air vortices, the rectifying vane assembly 32 of the present disclosure embodiment can be adapted to different degrees of air vortices, can rectify different degrees of air vortices well, and ensure that the range hood can achieve good oil fume exhaust effect and silent use effect when working in different gears. Specifically, as Figure 3 shown, the moving vane 322 includes a moving vane body 3221 and a rotating shaft 3222 fixedly connected. The rotating shaft 3222 is rotatably connected to the baffle 31.

[0049] Figure 4 For Figure 3 the partial enlarged view of the rectifying vane assembly 32 on the left in Figure 4 shown, for the convenience of description, as Figure 4 shown, when the moving vane 322 is in the a state, the moving vane 322 can achieve the diversion effect on a smaller degree of air vortex, and the rectifying vane assembly 32 can rectify the smaller degree of air vortex in a matching manner; when the moving vane 322 is in the b state, the moving vane 322 can achieve the diversion effect on a larger degree of air vortex, and the rectifying vane assembly 32 can rectify the larger degree of air vortex in a matching manner. In summary, by adjusting the attitude of the moving vane 322 to adapt to different types of air vortices, it is possible to rectify different degrees of air vortices well, and ensure that the range hood can achieve good oil fume exhaust effect and silent use effect when working in different gears.

[0050] As Figure 3 shown, the rectifying vane assembly 32 is provided with at least two. The through hole 311 has a center line L c , and at least two rectifying vane assemblies 32 are distributed in a spiral shape around the center line L c of the through hole 311. At least two rectifying vane assemblies 32 can rectify the fluid at various positions in the circumferential direction of the through hole 311 well.

[0051] As Figure 2 and Figure 3As shown, the rectifying mechanism 30 further includes a driving mechanism 33. The driving mechanism 33 can drive the moving blade 322 to move, and the driving mechanism 33 can achieve rapid, precise and automatic adjustment of the moving blade 322. As Figure 3 shown, the driving mechanism 33 can simultaneously drive the moving blades 322 of at least two rectifying vane assemblies 32 to move simultaneously. By using fewer driving mechanisms 33, synchronous driving of more rectifying vane assemblies 32 can be achieved, and the structure is simple and easy to operate.

[0052] As Figures 2 to 4 shown, the moving blade 322 is an arc-shaped plate. The arc-shaped plate has an outer arc surface 32211. The driving mechanism 33 includes a driving motor 331, a driving wheel 332 and a rotating ring 333. The rotating ring 333 is arranged on the baffle 31 and can rotate around the center line L c to rotate. The rotating ring 333 includes an inner ring surface 33311 and an outer ring surface 33312. The driving motor 331 is arranged on the baffle 31, the driving wheel 332 is arranged at the output end of the driving motor 331, the outer periphery of the driving wheel 332 abuts against the outer ring surface 33312, and the inner ring surface 33311 abuts against the outer arc surface 32211. When the driving motor 331 works, the output end of the driving motor 331 drives the driving wheel 332 to rotate, the driving wheel 332 drives the rotating ring 333 to rotate, and the rotating ring 333 drives the moving blade 322 to rotate, so as to realize the adjustment of the attitude of the moving blade 322.

[0053] As Figure 5 and Figure 6 shown, an arc-shaped groove 312 is formed on the baffle 31, and the center line L c passes through the center of the arc-shaped groove 312. The rotating ring 333 includes a rotating ring body 3331, a connecting portion 3333 and a limiting portion 3332 that are connected in sequence. The connecting portion 3333 is inserted into the arc-shaped groove 312, and the rotating ring body 3331 and the limiting portion 3332 are located on both sides of the baffle 31, so that the rotating ring 333 can rotate relative to the baffle 31, and at the same time, it can be ensured that the rotating ring 333 is not separated from the baffle 31.

[0054] As Figure 1 and Figure 2 shown, the outer periphery of the baffle 31 abuts against the inner wall surface of the housing 10. The range hood further includes a diversion pipe 50. One end of the diversion pipe 50 is communicated with the through hole 311, and the other end of the diversion pipe 50 is communicated with the air outlet 113. The housing 10, the baffle 31 and the diversion pipe 50 together form a sound-absorbing cavity 112. The setting of the sound-absorbing cavity 112 can weaken the noise transmission and reduce the noise transmitted outward during the use of the range hood. Through the setting of the diversion pipe 50, it is possible to achieve better diversion of the rectified fluid to the air outlet 113. As Figure 1 and Figure 2As shown, on the side of the baffle 31 facing away from the diversion pipe 50 is a receiving cavity 111, and the fan system 20 is located in the receiving cavity 111.

[0055] As Figure 2 shown, the drive motor 331 is located inside the sound insulation cavity 112, which can reduce the noise transmitted outward by the drive motor 331 during operation.

[0056] Specifically, as Figure 3 shown, the drive wheel 332 can be made of materials such as silicone, rubber or polyurethane. The drive wheel 332 has a large frictional force with the rotating ring 333, and can achieve a good driving effect of the drive wheel 332 on the rotating ring 333.

[0057] Specifically, as Figure 3 shown, the rotating ring 333 can be made of materials such as silicone, rubber or polyurethane. The drive wheel 332 has a large frictional force with the rotating ring 333, and can achieve a good driving effect of the drive wheel 332 on the rotating ring 333.

[0058] Specifically, as Figure 3 shown, the moving blade 322 can be made of materials such as silicone, rubber or polyurethane. The moving blade 322 has a large frictional force with the rotating ring 333, and can achieve a good driving effect of the rotating ring 333 on the moving blade 322.

[0059] As Figure 3 shown, the stationary blade 321 is in the shape of a blade. The stationary blade 321 has an inner edge 3211, an outer edge 3212 and a diversion surface 3213. Among them, the inner edge 3211 is the end of the stationary blade 321 close to the center line L c of one end, the tangential direction of the inner edge 3211 is the outgoing direction T, and the outgoing direction T intersects with the center line L c of the other end, and the outer edge 3212 is the end of the stationary blade 321 facing away from the center line L c . The fluid diverted by the moving blade 322 flows in from the outer edge 3212. Under the diversion of the diversion surface 3213, the fluid can be ejected from the inner edge 3211 in the outgoing direction T. By setting the stationary blade 321, the flow direction of the fluid diverted by the moving blade 322 can be changed, and the air vortex at the air outlet 113 can be reduced.

[0060] As Figure 1 and Figure 2 shown, the inner diameter of the diversion pipe 50 gradually decreases along the flow direction of the fluid, which can enable the rectified fluid to be quickly and largely discharged outward from the air outlet 113.

[0061] As Figure 2As shown, a plurality of noise reduction through holes 51 are formed on the wall surface of the diversion pipe 50, and the noise reduction through holes 51 can achieve a good noise reduction effect on the rectified fluid. The cross-section of the noise reduction through hole 51 can be circular or polygonal, and the structure of the noise reduction through hole 51 is simple and convenient for manufacturing.

[0062] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A rectifying mechanism, characterized in that: The rectifying mechanism comprises: a baffle (31), wherein a through hole (311) is formed on the baffle (31); and A straightening blade assembly (32) is arranged on the outer periphery of the through hole (311), and the straightening blade assembly (32) includes moving blades (322) and stationary blades (321). Along the radial direction of the through hole (311), the moving blades (322) and the stationary blades (321) are arranged from outside to inside, and the moving blades (322) can rotate around an axis perpendicular to the baffle (31), and the posture of the moving blades (322) relative to the baffle (31) is adjustable.

2. The rectifying mechanism according to claim 1, characterized in that: The rectifying mechanism also includes: The driving mechanism (33) can drive the moving blades (322) to rotate.

3. The rectifying mechanism according to claim 2, characterized in that: The moving blade (322) is an arc-shaped plate having an outer arc surface (32211); the driving mechanism (33) comprises a driving motor (331), a driving wheel (332) and a rotating ring (333); the through hole (311) has a center line L c The rotating ring (333) is arranged on the baffle (31) and can rotate around the center line L c The rotating ring (333) includes an inner ring surface (33311) and an outer ring surface (33312), the driving motor (331) is arranged on the baffle (31), the driving wheel (332) is arranged at the output end of the driving motor (331), the outer periphery of the driving wheel (332) is in contact with the outer ring surface (33312), and the inner ring surface (33311) is in contact with the outer arc surface (32211).

4. The rectifying mechanism according to claim 3, characterized in that: The driving wheel (332) is made of silicone, rubber or polyurethane; and / or The rotating ring (333) is made of silicone, rubber or polyurethane; and / or The moving blades (322) are made of silicone, rubber or polyurethane.

5. The rectifying mechanism according to any one of claims 1 to 4, characterized in that: The through hole (311) has a center line L c The fluid flowing out of the stationary blade (321) moves in an exit direction T, and the exit direction T is parallel to the center line L c Intersect.

6. The rectifying mechanism according to any one of claims 1 to 4, characterized in that: The rectifying blade assemblies (32) are provided in at least two portions, and the at least two rectifying blade assemblies (32) are arranged around a center line L of the through hole (311). c Distributed in a spiral shape.

7. A fume treatment device, comprising a housing (10), wherein the housing (10) is provided with an air outlet (113), characterized in that: The oil fume treatment device further comprises a rectifying mechanism as claimed in any one of claims 1 to 6, the baffle (31) is located inside the housing (10), and the air outlet (113) and the rectifying blade assembly (32) are located on both sides of the baffle (31).

8. The oil fume treatment device according to claim 7, characterized in that: The oil fume treatment device further comprises a guide pipe (50), one end of the guide pipe (50) being connected to the through hole (311), and the other end of the guide pipe (50) being connected to the air outlet (113); the housing (10), the baffle (31) and the guide pipe (50) together form a silencer cavity (112).

9. The oil fume treatment device according to claim 8, characterized in that: The rectifying mechanism further comprises a driving mechanism (33), wherein the driving mechanism (33) can drive the moving blades (322) to move, and a portion of the driving mechanism (33) is located in the muffler cavity (112).

10. The oil fume treatment device according to claim 8, characterized in that: The side of the baffle (31) facing away from the guide tube (50) is a containing cavity (111), and the oil fume treatment device further comprises a fan system (20), and the fan system (20) is located in the containing cavity (111).

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