CN215719789U - Fan with double blades - Google Patents
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- CN215719789U CN215719789U CN202121299263.9U CN202121299263U CN215719789U CN 215719789 U CN215719789 U CN 215719789U CN 202121299263 U CN202121299263 U CN 202121299263U CN 215719789 U CN215719789 U CN 215719789U
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- rotating shaft
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Abstract
The utility model discloses a double-blade fan which comprises a fan outer frame, a central rotating shaft, a first blade and a second blade, wherein the central rotating shaft for driving the first blade and the second blade to rotate is arranged in the middle of the inside of the fan outer frame, a plurality of first blades are arranged on the inner side of the fan outer frame, each first blade is connected with the outer side of the central rotating shaft, a plurality of second blades are arranged among the first blades, and each second blade is connected with the outer side of the central rotating shaft. According to the utility model, the second fan blades are arranged between the first fan blades in a staggered manner, so that the first fan blades and the second fan blades are matched with each other to work, thus the air volume of the fan is larger and is more silent, and the problems that the air volume is small when the existing fan works through a single-layer fan blade, and the use is influenced because the noise is large when the rotating speed needs to be increased are solved.
Description
Technical Field
The utility model relates to the field related to fans, in particular to a fan with double blades.
Background
Fan refers to a tool for cooling by generating wind in hot days. An electric fan is a device which is driven by electricity to generate air flow, and a fan arranged in the electric fan is electrified and then rotated into natural wind to achieve the effect of cooling.
At present, the existing fan usually adopts single-layer fan blades, and the single-layer fan blades generate small air volume when working, and if the rotating speed needs to be increased, the noise is large, thereby influencing the use.
Disclosure of Invention
Therefore, in order to solve the above-mentioned disadvantages, the present invention provides a dual-blade fan.
The utility model is realized in such a way that a double-blade fan is constructed, the device comprises a fan outer frame, a central rotating shaft, a first blade and a second blade, the central rotating shaft for driving the first blade and the second blade to rotate is arranged in the middle of the inside of the fan outer frame, a plurality of first blades are arranged on the inner side of the fan outer frame, each first blade is connected with the outer side of the central rotating shaft, a plurality of second blades are arranged among the first blades, and each second blade is connected with the outer side of the central rotating shaft.
Preferably, the first fan blade is provided with more than two pieces.
Preferably, each first fan blade is arranged around the central rotating shaft in an annular and equidistant mode.
Preferably, the second fan blade is provided with more than two pieces.
Preferably, each second fan blade is arranged around the central rotating shaft in an annular and equidistant mode.
Preferably, the first fan blades and the second fan blades are arranged in a staggered mode.
The utility model has the following advantages: the utility model provides a double-blade fan by improvement, compared with the same type of equipment, the double-blade fan comprises the following improvements:
the advantages are that: according to the double-blade fan, the second blades are arranged between the first blades in a staggered mode, so that the first blades and the second blades are matched with each other to work, the air volume of the fan is larger and is more silent, and the problems that when the existing fan works through a single-layer blade, the generated air volume is small, and if the rotating speed needs to be increased, the noise is large, and the use is affected are solved.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Wherein: the fan comprises a fan outer frame-1, a central rotating shaft-2, a first fan blade-3 and a second fan blade-4.
Detailed Description
The present invention will be described in detail with reference to fig. 1, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a double-blade fan through improvement, which comprises a fan outer frame 1, a central rotating shaft 2, a first blade 3 and a second blade 4, wherein the central rotating shaft 2 for driving the first blade 3 and the second blade 4 to rotate is arranged in the middle of the inside of the fan outer frame 1, a plurality of first blades 3 are arranged on the inner side of the fan outer frame 1, each first blade 3 is connected with the outer side of the central rotating shaft 2, a plurality of second blades 4 are arranged among the first blades 3, and each second blade 4 is connected with the outer side of the central rotating shaft 2.
Further, the first fan blade 3 is provided with more than two pieces, and the air quantity is improved after the fan blade works.
Furthermore, each first fan blade 3 is arranged around the central rotating shaft 2 in an annular equidistant mode, and the air volume can be generated after the rotation.
Furthermore, the number of the second fan blades 4 is more than two, and the air quantity is improved after the fan blades work.
Furthermore, each second fan blade 4 is arranged around the central rotating shaft 2 in an annular equidistant mode, and the air volume can be generated after the rotation.
Furthermore, first flabellum 3 and second flabellum 4 are crisscross setting each other between, the better improvement amount of wind of being convenient for.
The utility model provides a fan with double fan blades through improvement, and the working principle is as follows;
firstly, a central rotating shaft 2 for driving a first fan blade 3 and a second fan blade 4 to rotate is arranged in the middle of the inner part of a fan outer frame 1, a plurality of first fan blades 3 are arranged on the inner side of the fan outer frame 1, each first fan blade 3 is connected with the outer side of the central rotating shaft 2, more than two first fan blades 3 are arranged, the air volume is improved after the fan is operated, and each first fan blade 3 is annularly and equidistantly arranged around the central rotating shaft 2 to ensure that the air volume can be generated after the fan is rotated;
second, be provided with multi-disc second flabellum 4 between multi-disc first flabellum 3 to every second flabellum 4 all meets with central pivot 2 outsides, and this second flabellum 4 is provided with quantity more than two, improves the amount of wind after the work, and every second flabellum 4 is annular equidistance around central pivot 2 and arranges, can produce the amount of wind after guaranteeing to rotate, and be crisscross setting each other between first flabellum 3 and the second flabellum 4, the better improvement amount of wind of being convenient for.
The utility model provides a double-blade fan through improvement, and the second blades 4 are staggered among the first blades 3, so that the first blades 3 and the second blades 4 are matched with each other to work, thereby the air volume of the fan is larger and more silent, and the problem that the existing fan generates small air volume when working through a single-layer blade, and the use is influenced because the noise is large when the rotating speed needs to be increased is solved.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described, and the standard parts used in the present invention are all available on the market, the special-shaped parts can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts the conventional means of bolt and rivet, welding and the like mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A fan with double blades comprises a fan outer frame (1) and a central rotating shaft (2), wherein the central rotating shaft (2) for driving a first fan blade (3) and a second fan blade (4) to rotate is arranged in the middle of the inner part of the fan outer frame (1);
the method is characterized in that: still include first flabellum (3) and second flabellum (4), fan frame (1) inboard is provided with the first flabellum of multi-disc (3) to every first flabellum (3) all meets with central pivot (2) outside, be provided with multi-disc second flabellum (4) between the first flabellum of multi-disc (3) to every second flabellum (4) all meets with central pivot (2) outside.
2. The dual blade fan of claim 1, further comprising: the first fan blade (3) is provided with more than two pieces.
3. A dual-bladed fan according to claim 2, characterized in that: each first fan blade (3) is arranged around the central rotating shaft (2) in an annular and equidistant mode.
4. The dual blade fan of claim 1, further comprising: the second fan blades (4) are provided with more than two pieces.
5. A dual bladed fan according to claim 4 wherein: each second fan blade (4) is arranged around the central rotating shaft (2) in an annular and equidistant mode.
6. The dual blade fan of claim 1, further comprising: the first fan blades (3) and the second fan blades (4) are arranged in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121299263.9U CN215719789U (en) | 2021-06-10 | 2021-06-10 | Fan with double blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121299263.9U CN215719789U (en) | 2021-06-10 | 2021-06-10 | Fan with double blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215719789U true CN215719789U (en) | 2022-02-01 |
Family
ID=80041185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121299263.9U Active CN215719789U (en) | 2021-06-10 | 2021-06-10 | Fan with double blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215719789U (en) |
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2021
- 2021-06-10 CN CN202121299263.9U patent/CN215719789U/en active Active
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