CN218030831U - Noise reduction mechanism of electric fan - Google Patents
Noise reduction mechanism of electric fan Download PDFInfo
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- CN218030831U CN218030831U CN202222121789.9U CN202222121789U CN218030831U CN 218030831 U CN218030831 U CN 218030831U CN 202222121789 U CN202222121789 U CN 202222121789U CN 218030831 U CN218030831 U CN 218030831U
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- electric fan
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Abstract
The utility model belongs to the technical field of the electric fan, especially, mechanism of making an uproar falls in electric fan can produce at space department between flabellum and frame and flyback the air current to current electric fan, produces the noise, and whole fan can slightly rock, also can strengthen the problem of the production of whole noise, now provides following scheme, and it includes electric fan head, electric fan main part and falls the subassembly of making an uproar, fall the subassembly fixed connection of making an uproar in the outside of electric fan head and two, fall the firm subassembly of the bottom outside fixedly connected with of the subassembly of making an uproar, firm subassembly rotates with the electric fan main part outside and is connected, the upper and lower that firm subassembly is located electric fan main part department all is equipped with spacing subassembly. The beneficial effects of the utility model are that, reduce wind and make an uproar, reduce the noise of production, when the flagging certain angle of fan head used, whole firm subassembly stabilizes the electric fan head, reduces whole vibrations, noise abatement.
Description
Technical Field
The utility model relates to an electric fan technical field especially relates to a mechanism of making an uproar falls in electric fan.
Background
The electric fans are electric appliances frequently used by people, provide comfortable environment for cooling people in hot weather, are various in types and can be classified into household electric fans and industrial exhaust fans according to purposes.
However, when people have a rest, the noise generated by the electric fan can affect the rest quality of the user, and after search, the working noise of the fan mainly has three sources: the friction and vibration of the bearing, the vibration of the fan blades and wind noise are generated, flowing air is mutually interfered and is rubbed with surrounding objects, and the blades generate noise under the separation action of air flow, the pulsating force of periodic air supply and the like. The existing electric fan has the following defects:
1. the fan can generate flyback airflow at the gap between the fan blades and the outer frame, generate larger wind noise and noise, and can cause adverse effect on wind quantity,
2. when the fan head droops for a certain angle for use, the whole fan slightly shakes due to the shift of the gravity center of the upper end, and the generation of the whole noise is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving and having the electric fan among the prior art and can produce the flyback air current in the space department between flabellum and frame, produce great wind and make an uproar, produce the noise, when the flagging certain angle of fan head used, because the upper end focus skew, whole fan has slight rocking, also can strengthen the shortcoming of the production of whole noise, and the mechanism of making an uproar falls in the electric fan that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a mechanism of making an uproar falls in electric fan, includes electric fan head, electric fan main part and falls the subassembly of making an uproar, the outside and two fall the subassembly fixed connection that fall of electric fan head, fall the bottom outside fixedly connected with of subassembly of making an uproar and stabilize the subassembly and rotate with the electric fan main part outside and be connected, it all is equipped with spacing subassembly to stabilize the subassembly and be located the upper and lower of electric fan main part department.
Preferably, the two noise reduction assemblies comprise a sound absorption layer fixedly connected with the outer side of the electric fan head, a sound insulation layer is fixedly connected to the outer side of the sound absorption layer, a fixed layer is fixedly connected to the outer side of the sound insulation layer, and two second fixed blocks are fixedly connected to the outer sides of the contact positions of the two noise reduction assemblies.
Preferably, the subassembly that stabilizes includes two first fixed plates of fixed connection in the fixed bed bottom outside, two one side that first fixed plate is close to each other is rotated and is connected with the primary shaft, the primary shaft middle part outside is rotated and is connected with the riser, the primary shaft both ends are equipped with the split pin, riser fixedly connected with secondary shaft, the secondary shaft both ends outside is rotated and is connected with first diaphragm and second diaphragm, the I-shaped piece that is equipped with that first diaphragm and second diaphragm are close to each other.
Preferably, a first waist-shaped hole and a second waist-shaped hole are formed in the middle of the first transverse plate and the second transverse plate and are in sliding connection with a second shaft, a first arc surface and a second arc surface are formed in the sides, close to each other, of the first waist-shaped hole and the second waist-shaped hole and the first transverse plate and the second transverse plate respectively and are in sliding connection with the electric fan main body, a first step and a second step are formed in the sides, far away from each other, of the first transverse plate and the second transverse plate respectively, a first bolt and a second bolt are in threaded connection with the first transverse plate, the first transverse plate is fixedly connected with the second transverse plate through the first bolt and the second bolt, and the outer side of the second bolt is in rolling connection with the I-shaped block.
Preferably, the two limiting assemblies comprise a first limiting block and a second limiting block which are in sliding connection with the electric fan main body, the first limiting block is provided with a third cambered surface, the second limiting block is provided with a fourth cambered surface, the third cambered surface and the fourth cambered surface are in sliding connection with the electric fan main body, the first limiting block is in threaded connection with two third bolts, and the first limiting block and the second limiting block are fixedly connected through the third bolts.
Preferably, the sound absorption layer is provided with sound absorption cotton, and the sound insulation layer is internally provided with a sound insulation felt or a fiberboard.
The utility model discloses in, the beneficial effect of a mechanism of making an uproar falls in electric fan is: fall the subassembly of making an uproar two and pass through second fixed block fixed mounting on electric fan head, the cotton friction that reduces the air that flows of inhaling of during operation sound absorption layer, the space department between flabellum and frame produces the intensity of swashing back the air current and effectively reduces, and wind is made an uproar and is reduced, reduces the noise that wind made an uproar simultaneously, puigging 1 further reduces the noise, and whole firm subassembly is stabilized electric fan head 1.
1. The fan generates flyback airflow at the gap between the fan blades and the outer frame to reduce wind noise and noise,
2. when the flagging certain angle of fan head used, whole firm subassembly was stabilized electric fan head 1, reduced whole vibrations, noise abatement.
Drawings
Fig. 1 is a schematic view of a front perspective three-dimensional structure of a noise reduction mechanism of an electric fan according to the present invention;
fig. 2 is an exploded view of a stabilizing member of a noise reduction mechanism of an electric fan according to the present invention;
fig. 3 is a schematic view of a cross-sectional enlarged structure of a noise reduction assembly of a noise reduction mechanism of an electric fan according to the present invention;
fig. 4 is a schematic view of a cross-sectional enlarged structure at a position a of the noise reduction mechanism of the electric fan according to the present invention;
fig. 5 is the utility model provides a mechanism of making an uproar falls in electric fan's first diaphragm, the enlarged structure sketch map of second diaphragm.
In the figure: 1. an electric fan head; 2. a noise reduction assembly; 3. an electric fan main body; 4. a first fixing plate; 5. a first shaft; 6. a cotter pin; 7. a vertical plate; 8. a second shaft; 9. a first transverse plate; 901. a first kidney-shaped hole; 902. a first arc surface; 903. a first step; 10. a second transverse plate; 1001. a second kidney-shaped hole; 1002. a second arc surface; 1003. a second step; 11. an I-shaped block; 12. a first bolt; 13. a second bolt; 14. a first stopper; 1401. a third cambered surface; 15. a second limiting block; 1501. a fourth arc surface; 16. a third bolt; 17. a sound absorbing layer; 18. a sound insulating layer; 19. a fixed layer; 20. and a second fixing block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely 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.
Example one
Referring to fig. 1-5, an electric fan noise reduction mechanism comprises an electric fan head 1, an electric fan main body 3 and noise reduction assemblies 2, wherein the outer side of the electric fan head 1 is fixedly connected with the two noise reduction assemblies 2, the outer side of the bottom of each noise reduction assembly 2 is fixedly connected with a stabilizing assembly, the stabilizing assembly is rotatably connected with the outer side of the electric fan main body 3, and the stabilizing assembly is provided with limiting assemblies above and below the electric fan main body 3.
Example two
1-5, improve on the basis of embodiment one: a noise reduction mechanism of an electric fan comprises an electric fan head 1, an electric fan main body 3 and noise reduction components 2, wherein the outer side of the electric fan head 1 is fixedly connected with the two noise reduction components 2, the two noise reduction components 2 comprise a sound absorption layer 17 fixedly connected with the outer side of the electric fan head 1, the sound absorption layer 17 is provided with sound absorption cotton, the sound absorption cotton reduces friction of flowing air, the strength of flyback air flow generated at a gap between a fan blade and an outer frame is effectively reduced, wind noise is reduced, and noise generated by wind noise is reduced at the same time, a sound insulation layer 18 is fixedly connected to the outer side of the sound absorption layer 17, a sound insulation felt or a fiberboard is arranged in the sound insulation layer 18, a fixed layer 19 is fixedly connected to the outer side of the sound insulation layer 18, two second fixed blocks 20 are fixedly connected to the outer sides of contact parts of the two noise reduction components 2, a stabilizing component is fixedly connected to the outer side of the bottom of the noise reduction component 2, the stabilizing component comprises two first fixed plates 4 fixedly connected to the outer side of the bottom of the fixed layer 19, a first shaft 5 is rotatably connected at one side of the two first fixing plates 4 close to each other, a vertical plate 7 is rotatably connected at the outer side of the middle part of the first shaft 5, cotter pins 6 are arranged at two ends of the first shaft 5, a second shaft 8 is fixedly connected with the vertical plate 7, a first transverse plate 9 and a second transverse plate 10 are rotatably connected at the outer side of two ends of the second shaft 8, I-shaped blocks 11 are arranged at the first transverse plate 9 and the second transverse plate 10 close to each other, a first waist-shaped hole 901 and a second waist-shaped hole 1001 are respectively arranged between the first transverse plate 9 and the second transverse plate 10 and are slidably connected with the second shaft 8, a first cambered surface 902 and a second cambered surface 1002 are respectively arranged at the sides of the first kidney-shaped hole 901, the second kidney-shaped hole 1001, the first transverse plate 9 and the second transverse plate 10 which are close to each other, the first cambered surface 902 and the second cambered surface 1002 are connected with the electric fan body 3 in a sliding way, a first step 903 and a second step 1003 are respectively arranged at the sides of the first transverse plate 9 and the second transverse plate 10 which are far from each other, the first transverse plate 9 is in threaded connection with a first bolt 12 and a second bolt 13, the first transverse plate 9 is fixedly connected with a second transverse plate 10 through the first bolt 12 and the second bolt 13, the outer side of the second bolt 13 is connected with an I-shaped block 11 in a rolling mode, the I-shaped block 11 can keep rotating with the electric fan main body 3 through a first cambered surface 902 and a second cambered surface 1002, the two limiting assemblies comprise a first limiting block 14 and a second limiting block 15 which are in sliding connection with the electric fan main body 3, the first limiting block 14 is provided with a third cambered surface 1401, the second limiting block 15 is provided with a fourth cambered surface 1501, the third cambered surface 1501 and the fourth cambered surface 1501 are in sliding connection with the electric fan main body 3, the first limiting block 14 is in threaded connection with two third bolts 16, the first limiting block 14 and the second limiting block 15 are fixedly connected through third bolts 16, the first limiting block 14 and the second limiting block 15 prevent the first transverse plate 9 and the second transverse plate 10 from sliding up and down on the electric fan main body 3, and the whole stabilizing assembly stabilizes the electric fan head 1, the whole electric fan head 1 is reduced in vibration and reduced in noise 1401.
The utility model provides a theory of operation is: the two noise reduction assemblies 2 are fixedly arranged on the electric fan head 1 through the second fixing block 20, sound absorption cotton of the sound absorption layer 17 reduces friction of flowing air during working, strength of flyback air flow generated at a gap between a fan blade and an outer frame is effectively reduced, wind noise is reduced, noise generated by wind noise is reduced, the noise is further reduced through the sound insulation layer 18, when the inclination angle of the electric fan head 1 needs to be adjusted, the first bolt 12, the second bolt 13 and the third bolt 16 are unscrewed, the second shaft 8 slides left and right in the first kidney-shaped hole 901 and the second kidney-shaped hole 1001, the first transverse plate 9 slides on the electric fan body 3, the angle is adjusted, the first bolt 12 and the second bolt 13 are screwed, the I-shaped block 11 can keep rotating with the electric fan body 3 through the first cambered surface 902 and the second cambered surface 1002, the electric fan head 1 can rotate left and right, the first limiting block 14 and the second limiting block 15 prevent the first transverse plate 9 from sliding and the second transverse plate 10 from sliding on the electric fan body 3, the whole electric fan head can vibrate up and down, and the whole fan head can reduce overall noise stably.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (6)
1. The noise reduction mechanism of the electric fan comprises an electric fan head (1), an electric fan main body (3) and noise reduction assemblies (2), and is characterized in that the outer side of the electric fan head (1) is fixedly connected with the two noise reduction assemblies (2), the outer side of the bottom of each noise reduction assembly (2) is fixedly connected with a stabilizing assembly, the stabilizing assembly is rotatably connected with the outer side of the electric fan main body (3), and limiting assemblies are arranged above and below the stabilizing assembly located at the electric fan main body (3).
2. The noise reduction mechanism of the electric fan as claimed in claim 1, wherein the two noise reduction assemblies (2) comprise a sound absorption layer (17) fixedly connected with the outer side of the electric fan head (1), a sound insulation layer (18) is fixedly connected with the outer side of the sound absorption layer (17), a fixed layer (19) is fixedly connected with the outer side of the sound insulation layer (18), and two second fixed blocks (20) are fixedly connected with the outer sides of the contact positions of the two noise reduction assemblies (2).
3. The noise reduction mechanism of the electric fan as claimed in claim 1, wherein the stabilizing component comprises two first fixing plates (4) fixedly connected to the outer side of the bottom of the fixing layer (19), a first shaft (5) is rotatably connected to one side of the two first fixing plates (4) close to each other, a vertical plate (7) is rotatably connected to the outer side of the middle part of the first shaft (5), split pins (6) are arranged at two ends of the first shaft (5), a second shaft (8) is fixedly connected to the vertical plate (7), a first transverse plate (9) and a second transverse plate (10) are rotatably connected to the outer sides of two ends of the second shaft (8), and i-shaped blocks (11) are arranged on the first transverse plate (9) and the second transverse plate (10) close to each other.
4. The noise reduction mechanism of the electric fan is characterized in that a first kidney-shaped hole (901) and a second kidney-shaped hole (1001) are respectively formed in the middle of the first transverse plate (9) and the second transverse plate (10) and are in sliding connection with the second shaft (8), a first arc surface (902) and a second arc surface (1002) are respectively formed on the sides, close to each other, of the first kidney-shaped hole (901), the second kidney-shaped hole (1001) and the first transverse plate (9) and the second transverse plate (10), the first arc surface (902) and the second arc surface (1002) are in sliding connection with the electric fan body (3), a first step (903) and a second step (1003) are respectively formed on the sides, far away from each other, of the first transverse plate (9) and the second transverse plate (10), a first bolt (12) and a second bolt (13) are in threaded connection with the first transverse plate (9), the first transverse plate (9) is fixedly connected with the second transverse plate (10) through the first bolt (12) and the second bolt (13), and the second transverse plate (13) is fixedly connected with the second bolt (11) and the I-shaped block (11).
5. The noise reduction mechanism of the electric fan as claimed in claim 1, wherein the two limiting assemblies comprise a first limiting block (14) and a second limiting block (15) which are slidably connected with the electric fan body (3), the first limiting block (14) is provided with a third cambered surface (1401), the second limiting block (15) is provided with a fourth cambered surface (1501), the third cambered surface (1401) and the fourth cambered surface (1501) are slidably connected with the electric fan body (3), the first limiting block (14) is in threaded connection with two third bolts (16), and the first limiting block (14) and the second limiting block (15) are fixedly connected through the third bolts (16).
6. The noise reduction mechanism of an electric fan according to claim 2, characterized in that the sound absorption layer (17) is provided with sound absorption cotton, and the sound insulation layer (18) is provided with sound insulation felt or fiberboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222121789.9U CN218030831U (en) | 2022-08-12 | 2022-08-12 | Noise reduction mechanism of electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222121789.9U CN218030831U (en) | 2022-08-12 | 2022-08-12 | Noise reduction mechanism of electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218030831U true CN218030831U (en) | 2022-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222121789.9U Active CN218030831U (en) | 2022-08-12 | 2022-08-12 | Noise reduction mechanism of electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218030831U (en) |
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2022
- 2022-08-12 CN CN202222121789.9U patent/CN218030831U/en active Active
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