CN216589270U - Low-noise fan blade - Google Patents
Low-noise fan blade Download PDFInfo
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- CN216589270U CN216589270U CN202123430854.8U CN202123430854U CN216589270U CN 216589270 U CN216589270 U CN 216589270U CN 202123430854 U CN202123430854 U CN 202123430854U CN 216589270 U CN216589270 U CN 216589270U
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- blade
- low noise
- fan blade
- base
- noise fan
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Abstract
The utility model discloses a low noise fan blade, include: wheel hub and blade, wheel hub include base and apron, and the connection cover board can be dismantled to the base, and the one end of blade is equipped with the installation piece, and base circumference distributes and has the installation through-hole corresponding with the installation piece, and the installation through-hole is deviate from with the restriction installation piece to the cover connection installation piece. The utility model discloses novel structure, the dismouting is nimble, and the blade of damage can be changed alone, and the maintenance cost is low, convenient to use.
Description
Technical Field
The utility model belongs to the technical field of the fan, especially, relate to a low noise fan blade.
Background
The fan has wide application, such as an electric fan, an air conditioner and the like, and the fan blades are important components in the fan.
The prior fan blade has the following defects in the using process: 1. each blade and the hub are integrally formed, so that the damaged blade cannot be replaced independently, the use is influenced, and the maintenance cost is high; 2. the high-speed rotation process can generate larger noise to influence the surrounding environment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solves the above-mentioned technical problem that exists among the prior art, provides a low noise fan blade, novel structure, and the dismouting is nimble, and the blade of damage can be changed alone, and the maintenance cost is low, convenient to use.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a low noise fan blade comprising: wheel hub and blade, its characterized in that: the hub comprises a base and a cover plate, the base is detachably connected with the cover plate, one end of each blade is provided with an installation block, installation through holes corresponding to the installation blocks are circumferentially distributed on the base, and the cover plate is connected with the installation blocks to limit the installation blocks to be separated from the installation through holes. The fan blade is novel in structure, flexible to disassemble and assemble, low in maintenance cost and convenient to use, and damaged blades can be replaced independently.
Further, be equipped with the screw thread post on the apron, be equipped with fixing hole on the installation piece, be equipped with spacing through-hole on the base, the screw thread post passes fixing hole and spacing through-hole in proper order, be connected with the nut on the screw thread post, the nut pins the screw thread post and deviates from spacing through-hole with the restriction screw thread post, the apron can't be separated from the base, the installation through-hole is deviate from to screw thread post restriction installation piece, realize that the blade is spacing fixed, installation stability does, prevent that the blade from taking place freely to rock and influencing the use, the dismouting is convenient, be convenient for change the blade of damage alone, maintenance cost is reduced.
Furthermore, the base is provided with a middle hole, the cover plate is provided with a shaft sleeve corresponding to the middle hole, the contact area between the base and the cover plate is indirectly increased, the base can limit the cover plate to move radially, and the overall stability is improved.
Furthermore, the spline grooves are formed in the shaft sleeve, so that the shaft sleeve is convenient to assemble with the rotating shaft, is evenly stressed and can bear larger load.
Furthermore, the windward side of the blade is provided with a drainage groove, wind is guided through the drainage groove, the turbulent flow phenomenon on the surface of the blade is reduced, and the purpose of reducing noise is achieved.
Furthermore, the reinforcing ribs are arranged on the leeward side of the blade, so that the structural strength of the blade is improved, and the blade is not easy to deform, thereby being beneficial to improving the stability of the blade during rotation.
Furthermore, one side of the blade is provided with a sawtooth edge, and the sawtooth of the sawtooth edge can cut airflow flowing through the surface of the blade, so that the resistance of the airflow to the blade is reduced, and the noise generated when the blade rotates is favorably reduced.
Furthermore, the thickness of blade is crescent to another side along one side of sawtooth limit, improves the cutting effect of sawtooth limit to the air current, and then reduces the resistance of air current to the blade, noise reduction.
Furthermore, the mounting block is connected with the blade through the extending part, so that the contact area of the mounting block and the blade is increased, the connection strength of the mounting block and the blade is improved, and the synchronous motion is more reliable.
Furthermore, the surface of the blade is coated with the epoxy resin coating, so that the corrosion resistance of the blade is improved, and the service life of the blade is long.
The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:
hub can be torn open for two, and the components of a whole that can function independently is made conveniently, and it is removable to damage, and the nut pins the screw thread post and deviates from spacing through-hole with the restriction screw thread post for apron and the unable separation of base, screw thread post restriction installation piece deviate from the installation through-hole, realizes that the blade is spacing fixed, and installation stability does, prevents that the blade from taking place freely to rock and influencing the use, loosens the nut, can pull down the apron, thereby is convenient for change the blade of damage alone, has reduced the maintenance cost, and the dismouting is convenient.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of a low noise fan blade of the present invention;
FIG. 2 is a schematic structural view of the back of the wind-guiding leaf of the present invention;
FIG. 3 is a schematic structural view of the connection between the vane and the base of the present invention;
FIG. 4 is a schematic structural view of a blade according to the present invention;
fig. 5 is a schematic structural diagram of the middle cover plate of the present invention.
In the figure: 1-a hub; 2-a blade; 3-a base; 4-cover plate; 5, mounting a block; 6-an extension; 7-installing a through hole; 8-a threaded post; 9-fixing the through hole; 10-limiting through holes; 11-a screw cap; 12-a drainage groove; 13-reinforcing ribs; 14-a serrated edge; 15-mesopores; 16-shaft sleeve; 17-spline grooves; 18-lightening holes.
Detailed Description
As shown in fig. 1 to 5, do the utility model relates to a low noise fan blade, include: wheel hub 1 and blade 2, wheel hub 1 include base 3 and apron 4, and the one end of blade 2 is equipped with installation piece 5, and installation piece 5 passes through extension 6 and connects blade 2, has increased the area of contact of installation piece 5 with blade 2, has improved joint strength between them, and synchronous motion is more reliable. 3 circumference of base distributes has the installation through-hole 7 with 5 looks adaptations of installation piece, be equipped with screw thread post 8 on the apron 4, be equipped with fixing hole 9 on the installation piece 5, be equipped with spacing through-hole 10 on the base 3, screw thread post 8 passes fixing hole 9 and spacing through-hole 10 in proper order, be connected with nut 11 on the screw thread post 8, nut 11 pastes the bottom surface of base 3, nut 11 pins screw thread post 8 and deviates from spacing through-hole 10 with restriction screw thread post 8, apron 4 and 3 unable separation of base, screw thread post 8 restriction installation piece 5 deviates from installation through-hole 7, realize 2 spacing fixed of blade, installation stability does, prevent that blade 2 from taking place freely rocking and influencing the use, loosen nut 11, can pull down apron 4, thereby be convenient for change alone the blade 2 of damage, maintenance cost is reduced, the dismouting is convenient. The base 3 is provided with lightening holes 18, so that the weight is reduced, and manufacturing materials are saved.
The blade 2 after the installation is the slope setting in the outside of base 3, will form axial and radial wind current simultaneously when blade 2 rotates, has improved ventilation efficiency. The windward side of the blade 2 is provided with a drainage groove 12, wind is guided through the drainage groove 12, the turbulent flow phenomenon on the surface of the blade 2 is reduced, and the purpose of reducing noise is achieved. Be equipped with strengthening rib 13 on the leeward side of blade 2, promote blade 2's structural strength, non-deformable to stability when being favorable to improving blade 2 and rotating. One side of blade 2 is equipped with sawtooth edge 14, and its sawtooth can cut the air current that flows through blade 2 surface, reduces the resistance of air current to blade 2 to be favorable to reducing the noise that produces when blade 2 rotates. The thickness of blade 2 increases gradually to another side along one side of sawtooth limit 14, improves the cutting effect of sawtooth limit 14 to the air current, and then reduces the resistance of air current to blade 2, noise reduction. The surface of the blade 2 is coated with the epoxy resin coating, so that the corrosion resistance of the blade 2 is improved, and the service life is long.
Be equipped with mesopore 15 on the base 3, be equipped with the axle sleeve 16 corresponding with mesopore 15 on the apron 4, base 3 and apron 4 butt joint back, axle sleeve 16 passes mesopore 15, has indirectly increased the area of contact of base 3 with apron 4, and base 3 can restrict apron 4 and take place radial activity, has improved holistic stability. The spline grooves 17 are formed in the shaft sleeve 16, so that the shaft sleeve is convenient to assemble with a rotating shaft, is uniformly stressed and can bear larger load.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.
Claims (10)
1. A low noise fan blade comprising:
a hub and a blade, wherein the hub is provided with a plurality of blades,
the method is characterized in that:
the hub comprises a base and a cover plate, the base is detachably connected with the cover plate, one end of each blade is provided with an installation block, installation through holes corresponding to the installation blocks are circumferentially distributed on the base, and the cover plate is connected with the installation blocks to limit the installation blocks to be separated from the installation through holes.
2. The low noise fan blade of claim 1, wherein: the novel nut is characterized in that the cover plate is provided with a threaded column, the mounting block is provided with a fixing through hole, the base is provided with a limiting through hole, the threaded column sequentially penetrates through the fixing through hole and the limiting through hole, the threaded column is connected with a nut, and the nut locks the threaded column to limit the threaded column to be separated from the limiting through hole.
3. The low noise fan blade of claim 1, wherein: the base is provided with a middle hole, and the cover plate is provided with a shaft sleeve corresponding to the middle hole.
4. The low noise fan blade of claim 3, wherein: the shaft sleeve is internally provided with a spline groove.
5. The low noise fan blade of claim 1, wherein: the windward side of the blade is provided with a drainage groove.
6. The low noise fan blade of claim 1, wherein: and reinforcing ribs are arranged on the leeward side of the blade.
7. The low noise fan blade of claim 1, wherein: one side of the blade is provided with a sawtooth edge.
8. The low noise fan blade of claim 7, wherein: the thickness of the blade is gradually increased from one side of the sawtooth edge to the other side.
9. The low noise fan blade of claim 1, wherein: the mounting block is connected to the blade by an extension.
10. The low noise fan blade of claim 1, wherein: the surface of the blade is coated with an epoxy resin coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123430854.8U CN216589270U (en) | 2021-12-29 | 2021-12-29 | Low-noise fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123430854.8U CN216589270U (en) | 2021-12-29 | 2021-12-29 | Low-noise fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216589270U true CN216589270U (en) | 2022-05-24 |
Family
ID=81631332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123430854.8U Active CN216589270U (en) | 2021-12-29 | 2021-12-29 | Low-noise fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216589270U (en) |
-
2021
- 2021-12-29 CN CN202123430854.8U patent/CN216589270U/en active Active
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