CN212108545U - Fume exhaust fan - Google Patents
Fume exhaust fan Download PDFInfo
- Publication number
- CN212108545U CN212108545U CN201922464791.4U CN201922464791U CN212108545U CN 212108545 U CN212108545 U CN 212108545U CN 201922464791 U CN201922464791 U CN 201922464791U CN 212108545 U CN212108545 U CN 212108545U
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- CN
- China
- Prior art keywords
- air
- exhaust hole
- range hood
- volute
- air outlet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003517 fume Substances 0.000 title description 9
- 239000000779 smoke Substances 0.000 claims abstract description 29
- 238000007664 blowing Methods 0.000 claims abstract description 14
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 238000009792 diffusion process Methods 0.000 description 6
- 239000000567 combustion gas Substances 0.000 description 5
- 230000000391 smoking effect Effects 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Abstract
The utility model discloses a range hood, which comprises a smoke collecting hood, a first air suction opening arranged at the top of the inner side of the smoke collecting hood, a box body arranged on the smoke collecting hood and a first air outlet arranged on the box body, wherein a coaxially rotating air suction assembly and an air blowing assembly are arranged in the box body, a lug for dividing the inner side of the smoke collecting hood into two areas is arranged at the middle part of the inner side of the smoke collecting hood, the front surface of the lug is a plane inclined downwards, reducing arc surfaces are respectively arranged between the two sides of the plane and the front surface of the inner side of the smoke collecting hood, the reducing arc surfaces are concave, a plurality of first air exhaust holes are vertically arranged on the plane, second air exhaust holes are respectively arranged at the two sides of the smoke collecting hood vertically, the second air exhaust holes face the reducing arc surfaces, the air outlet of the air suction assembly is communicated with the first air outlet, and, and the air inlet of the blowing assembly is communicated with the outside.
Description
Technical Field
The utility model relates to a kitchen utensil field, concretely relates to range hood.
Background
The range hood is a main means for collecting oil smoke in a kitchen, and how to improve the suction efficiency of the range hood is always important for the design and research of the range hood. When the traditional range hood inhales, the air suction range is a hemispherical area, and air in all directions is sucked indiscriminately. The air flow rate at the position of the air suction port is larger in the air suction mode, and the air flow rate far away from the air suction port is rapidly reduced along with the increase of the distance from the air suction port. Therefore, in a short distance below the air suction port, the upward speed of the air becomes very small, so that the upward suction force is insufficient, and the range hood is easily interfered by external factors, such as walking of people, the influence of factors which can disturb the air flow, such as the operation of a fan or cold air, and the like, so that the oil smoke or pollutants are dissipated along with the flowing of disturbed air flow, and the range hood has poor smoke collecting and smoking effects.
SUMMERY OF THE UTILITY MODEL
To the defect that above-mentioned prior art exists, the to-be-solved technical problem of the utility model is: the oil smoke or pollutant is prevented from escaping due to disturbance of external air flow, and the smoke collecting and smoking effects of the range hood are improved.
A range hood comprises a fume collecting hood, a first air suction opening arranged at the top of the inner side of the fume collecting hood, a box body arranged on the fume collecting hood and a first air outlet arranged on the box body, wherein a coaxial rotating air suction assembly and an air blowing assembly are arranged in the box body, a lug for dividing the inner side of the fume collecting hood into two regions is arranged at the middle part of the inner side of the fume collecting hood, the front surface of the lug is a plane inclined downwards, reducing circular arc surfaces are arranged between the two sides of the plane and the front surface of the inner side of the fume collecting hood respectively, the reducing circular arc surfaces are concave, a plurality of first air exhaust holes are arranged in the plane in a vertical arrangement mode, second exhaust holes are arranged in the two sides of the fume collecting hood respectively in a vertical arrangement mode and face towards the reducing circular arc surfaces, the air outlet of the air suction assembly is communicated with the first air outlet, the air inlet of the, and the air outlet of the air conditioner is communicated with the first exhaust hole and the second exhaust hole respectively to form a ventilation pipeline.
Further, the subassembly that induced drafts includes first spiral case and sets up the first fan in first spiral case, the subassembly that induced drafts includes the second spiral case and sets up the second fan in the second spiral case, first spiral case and second spiral case set up side by side, first fan and second fan stretch the coaxial drive of motor through the biax, the air intake of first spiral case with first inlet scoop is linked together, its air outlet with first air outlet is linked together be equipped with the second inlet scoop on the box, the air intake of second spiral case with the second inlet scoop is linked together, its air outlet through air pipe with first exhaust hole with the second exhaust hole is linked together.
Furthermore, one end of the reducing arc surface is tangent to the front surface of the inner side of the smoke collecting hood, and the other end of the reducing arc surface is tangent to the front surface direction of the convex block.
Furthermore, any horizontal section of the variable diameter arc surface is a quarter arc.
Further, the diameter of the variable diameter arc surface gradually increases from bottom to top.
Further, the first exhaust hole and the second exhaust hole are polygonal holes.
Preferably, the distance between the first vent hole and the edge of the plane is less than 20 mm.
Preferably, the first volute and the second volute are integrally provided.
In the first embodiment, the ventilation pipeline is formed by connecting multiple sections of hard pipes.
In the second embodiment, the ventilation pipeline is composed of a hose and an adapter.
Compared with the prior art, the utility model discloses an at least including following beneficial effect:
the utility model discloses at the during operation, the biax is stretched the motor and is started, thereby it inhales the subassembly to drive, the subassembly work of blowing, wherein it inhales external gas from first inlet scoop, discharge from first air outlet, the subassembly of blowing inhales external gas from the second inlet scoop, the gas flow is through air pipe from first exhaust hole and second exhaust hole discharge, because the wall effect that attaches, the second exhaust hole combustion gas is along the inboard positive flow direction reducing arc surface that gathers in the petticoat pipe, the gas is smooth and easy turns to and forms the whirl, first exhaust hole combustion gas, because the viscous effect of gas, can drive peripheral gas flow, this second exhaust hole combustion gas can also accelerate, the ascending suction of subassembly is induced to the cooperation, form the ascending air current of spiral, can form the spin-suction effect of gathering before the gaseous diffusion of oil smoke, prevent the oil smoke diffusion escape, reach high-efficient holding together cigarette, The effect of smoking, and can cut into different regions with the oil smoke through the whirl, when preventing the oil smoke diffusion, prevent outside air current interference.
Drawings
Fig. 1 is a schematic perspective view of a range hood of the present invention;
fig. 2 is an enlarged perspective view of a portion a in fig. 1 according to the present invention;
fig. 3 is one of the exploded perspective views of the range hood of the present invention;
fig. 4 is a second exploded perspective view of the range hood of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the scope of the claimed technical solution of the present invention.
As shown in fig. 1-4, a range hood comprises a smoke collecting hood 1, a first air suction opening 10 arranged at the top of the inner side of the smoke collecting hood 1, a box body 2 arranged on the smoke collecting hood 1, and a first air outlet 20 arranged on the box body 2, wherein a coaxially rotating air suction assembly 21 and an air blowing assembly 22 are arranged in the box body 2, a convex block 11 for dividing the inner side of the smoke collecting hood 1 into two regions is arranged in the middle of the inner side of the smoke collecting hood 1, the front surface of the convex block 11 is a downward inclined plane 12, variable diameter arc surfaces 13 are respectively arranged between the two sides of the plane 12 and the front surface of the inner side of the smoke collecting hood 1, the variable diameter arc surfaces 13 are concave, a plurality of first exhaust holes 14 are vertically arranged on the plane 12, the first exhaust holes 14 are arranged in the tangential direction towards the variable diameter arc surfaces 13, and drive the air in the smoke collecting hood to flow along the variable diameter arc surfaces, form the whirl the both sides of collection petticoat pipe 1 vertical range respectively are equipped with second exhaust hole 15, second exhaust hole 15 is towards reducing arc surface 13, second exhaust hole 15 spun air current flows along reducing arc surface 13, drives the air in the collection petticoat pipe simultaneously through the air viscosity effect and flows along reducing arc surface 13, forms the whirl, the air outlet and the first air outlet 20 of induced draft subassembly 21 are linked together, and its air intake is linked together with first air intake 10, the air intake and the outside of subassembly 22 of blowing are linked together, and its air outlet communicates respectively with between first exhaust hole 14, the second exhaust hole 15 and is equipped with air pipe 16, the subassembly 21 of induced drafting includes first spiral case 210 and sets up the first fan 211 in first spiral case 210, the subassembly 22 of blowing includes second spiral case 220 and sets up the second fan 221 in second spiral case 220, first spiral case 210 and second spiral case 220 set up side by side, first fan 211 and second fan 221 stretch motor 23 coaxial drive through the biax, the air intake of first spiral case 210 with first inlet scoop 10 is linked together, its air outlet with first air outlet 20 is linked together be equipped with second inlet scoop 17 on the box 2, the air intake of second spiral case 220 with second inlet scoop 17 is linked together, its air outlet through air pipe 16 with first exhaust hole 14 with second exhaust hole 15 is linked together, and at the during operation, the biax stretches motor 23 and starts to drive air suction assembly 21, the work of subassembly 22 of blowing, wherein air suction assembly 21 inhales external gas from first inlet scoop 10, discharges from first air outlet 20, and air blowing assembly 22 inhales external gas from second inlet scoop 17, and air flow through air pipe 16 is discharged from first exhaust hole 14 and second exhaust hole 15. Because the wall attachment effect, the second exhaust hole 15 combustion gas is along the inboard front flow direction reducing arc surface 13 of collection petticoat pipe 1, smooth turning to of gas forms the whirl, first exhaust hole 14 exhaust gas, because the viscous effect of gas, can drive peripheral gas flow, this also can accelerate second exhaust hole 15 combustion gas, the ascending suction of subassembly 21 that induced drafts is cooperated, form the ascending air current of spiral, can form the spin-suction effect of gathering together in the past in oil smoke gas diffusion, prevent that the oil smoke diffusion from escaping, reach high-efficient cigarette that gathers together, the effect of smoking, and can cut the oil smoke into different regions through the whirl, when preventing the oil smoke diffusion, prevent outside air current interference.
The one end of reducing arc 13 openly is tangent with the inboard of collection petticoat pipe 1, the other end of reducing arc 13 is tangent with the positive direction of lug 11, forms the whirl more easily when making the air current remove along reducing arc 13.
Any horizontal section of the reducing arc surface 13 is a quarter arc, so that the air flow can easily form a rotational flow when moving along the reducing arc surface 13.
The circular arc diameter from bottom to top of reducing arc surface 13 crescent, cambered surface diameter from bottom to top crescent makes the air current form the whirl more easily, and forms the mode promotion smoking efficiency of tornado to and improved and held together the cigarette effect.
The distance between the edge of the first exhaust hole 14 and the plane 12 is less than 20mm, and the distance is the optimal distance between the edge of the first exhaust hole 14 and the edge of the second exhaust hole 15 from the plane 12.
First spiral case 210 sets up as an organic whole with second spiral case 220, and the equipment of more convenient improves the installation effectiveness.
The above-mentioned detailed description of the technical solution and the beneficial effects of the present invention have been described in detail, it should be understood that the above is only the most preferred embodiment of the present invention, not used for limiting the present invention, any modification, supplement, equivalent replacement, etc. made within the principle scope of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a range hood, includes collection petticoat pipe (1), sets up first air outlet (10) at the inboard top of collection petticoat pipe (1), sets up box (2) on collection petticoat pipe (1) and sets up first air outlet (20) on box (2), its characterized in that: be equipped with coaxial pivoted subassembly (21) and the subassembly (22) of blowing of induced drafting in box (2) the inboard middle part of collection petticoat pipe (1) is equipped with and falls into lug (11) in two regions with the inboard of collection petticoat pipe (1), the front of lug (11) is plane (12) of downward sloping, be equipped with reducing arc surface (13) between the both sides of plane (12) respectively and the inboard front of collection petticoat pipe (1), reducing arc surface (13) are concave form vertical arrangement has a plurality of first exhaust hole (14) on plane (12) the both sides of collection petticoat pipe (1) vertical arrangement respectively are equipped with second exhaust hole (15), second exhaust hole (15) are towards reducing arc surface (13), the air outlet and the first air outlet (20) of subassembly (21) of induced drafting are linked together, and its air intake is linked together with first air intake (10), the air inlet of the air blowing component (22) is communicated with the outside, and the air outlet of the air blowing component is communicated with the first exhaust hole (14) and the second exhaust hole (15) respectively to form a ventilation pipeline (16).
2. A range hood according to claim 1, wherein: the air suction assembly (21) comprises a first volute (210) and a first fan (211) arranged in the first volute (210), the blowing assembly (22) comprises a second volute (220) and a second fan (221) arranged in the second volute (220), the first volute (210) and the second volute (220) are arranged in parallel, the first fan (211) and the second fan (221) are coaxially driven by a double-shaft extension motor (23), the air inlet of the first volute (210) is communicated with the first air suction port (10), the air outlet of the air conditioner is communicated with the first air outlet (20), a second air suction opening (17) is arranged on the box body (2), the air inlet of the second volute (220) is communicated with the second air suction opening (17), the air outlet of the air conditioner is respectively communicated with the first exhaust hole (14) and the second exhaust hole (15) through a ventilation pipeline (16).
3. The range hood of claim 1, wherein: one end of the reducing arc surface (13) is tangent to the front side of the inner side of the smoke collecting hood (1), and the other end of the reducing arc surface (13) is tangent to the front side direction of the bump (11).
4. The range hood of claim 1, wherein: any horizontal section of the reducing arc surface (13) is a quarter arc.
5. The range hood according to any one of claims 1 to 4, wherein: the diameter of the variable diameter arc surface (13) is gradually increased from bottom to top.
6. The range hood according to any one of claims 1 to 4, wherein: the first exhaust hole (14) and the second exhaust hole (15) are polygonal holes.
7. The range hood of claim 6, wherein: the distance between the first exhaust hole (14) and the edge of the plane (12) is less than 20 mm.
8. A range hood according to claim 2, wherein: the first volute (210) and the second volute (220) are integrally arranged.
9. The range hood according to any one of claims 1 to 4 or 7, wherein: the ventilation pipeline (16) is formed by connecting a plurality of sections of hard pipes.
10. The range hood according to any one of claims 1 to 4 or 7, wherein: the ventilation pipeline (16) is composed of a hose and an adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922464791.4U CN212108545U (en) | 2019-12-31 | 2019-12-31 | Fume exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922464791.4U CN212108545U (en) | 2019-12-31 | 2019-12-31 | Fume exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212108545U true CN212108545U (en) | 2020-12-08 |
Family
ID=73623914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922464791.4U Active CN212108545U (en) | 2019-12-31 | 2019-12-31 | Fume exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212108545U (en) |
-
2019
- 2019-12-31 CN CN201922464791.4U patent/CN212108545U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |