CN208380905U - A kind of centrifugal fan preventing airflow reflux - Google Patents
A kind of centrifugal fan preventing airflow reflux Download PDFInfo
- Publication number
- CN208380905U CN208380905U CN201820058755.0U CN201820058755U CN208380905U CN 208380905 U CN208380905 U CN 208380905U CN 201820058755 U CN201820058755 U CN 201820058755U CN 208380905 U CN208380905 U CN 208380905U
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- China
- Prior art keywords
- shaft
- groove
- shell
- rotating shaft
- centrifugal fan
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Abstract
The utility model relates to centrifugal fan technical fields, especially a kind of centrifugal fan for preventing airflow reflux, including shell, the side of shell is equipped with air inlet, the lower section of air inlet is equipped with flabellum, the side of flabellum is equipped with air duct, the top in air duct is equipped with the first groove, first rotating shaft is equipped in first groove, the bottom in air duct is equipped with the second groove, the second shaft is equipped in second groove, the side of shell is equipped with the first placing groove, shell is equipped with the second placing groove far from the side of the first placing groove, micromotor is equipped in second placing groove, connecting plate is respectively equipped in first rotating shaft and the second shaft, connecting plate is equipped with drainage plate.The utility model is arranged shaft in groove, drainage plate is fixed in shaft by connecting plate, and by minitype motor driving shaft, move back and forth drainage plate, improve the effect for preventing airflow reflux by the way that groove is arranged in air duct.
Description
Technical field
The utility model relates to centrifugal fan technical field more particularly to a kind of centrifugal fans for preventing airflow reflux.
Background technique
A kind of centrifugal fan is that fluid is got rid of fluid to after the axial sucking of fan using centrifugal force from circumferencial direction
It goes out, is the chassis for being located on the housing perimeter including shell, multiple flabellums, which are enclosed, protrudes from this set on the chassis and ringwall extension
Undersurface of bottom disc and pedestal, to carry the rotor, wherein the pedestal side wall system is corresponding with the ringwall is surrounded by an accommodating sky
Between, backflow phenomenon can occur for air-flow a part of traditional centrifugal fan gas outlet discharge, reduce the work effect of centrifugal fan
Rate.
Utility model content
Purpose of the utility model is to solve one kind that airflow reflux exists in the prior art, and proposes to prevent
The only centrifugal fan of airflow reflux.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of centrifugal fan for preventing airflow reflux, including shell are designed, the shell is equipped with fixed screw, the shell
The side of body is equipped with air inlet, and the lower section of the air inlet is equipped with flabellum, and the side of the flabellum is equipped with air duct, the air duct
Top is equipped with several first grooves, is equipped with first rotating shaft in several first grooves, and the bottom in the air duct is equipped with several the
Two grooves, are equipped with the second shaft in several second grooves, and the both ends of the first rotating shaft and the second shaft pass through axis respectively
It holds and is fixed on shell, the side of the shell is equipped with the first placing groove, and is located at the outside in air duct, the first rotating shaft and the
One end of two shafts extends into the first placing groove, and is respectively equipped with several sprocket wheels, in the first rotating shaft and in the second shaft
Sprocket wheel pass through the connection of the first chain respectively, the shell is equipped with the second placing groove far from the side of the first placing groove, described the
Micromotor is equipped in two placing grooves, wherein a first rotating shaft extends in the second placing groove far from one end of sprocket wheel,
And be connected on the output end of micromotor by shaft coupling, wherein a first rotating shaft and wherein one described second turn
Axis is connected by the second chain, and connecting plate is respectively equipped in the first rotating shaft and the second shaft, and the connecting plate, which is equipped with, to be drawn
Flowing plate, the drainage plate are equipped with several through-holes, and the air duct is equipped with air outlet far from the side of flabellum, sets in the air outlet
There is cooling fin.
Preferably, first groove and the second groove are symmetrical parallel settings, and the number of the first groove and the second groove
Amount is respectively three.
Preferably, it is uniformly distributed between several through-holes being arranged on the drainage plate.
Preferably, the air-out direction of the drainage plate towards the air outlet is obliquely installed.
Preferably, the outside of the shell is equipped with fan motor, and the output end of the fan motor is fixed with the flabellum
Connection.
The utility model proposes a kind of centrifugal fan for preventing airflow reflux, beneficial effect is: the utility model is logical
It crosses and drainage plate is set in air duct, prevent air-flow from flowing back, the utility model is set in groove by the way that groove is arranged in air duct
Shaft is set, drainage plate is fixed in shaft by connecting plate, and by minitype motor driving shaft, transports drainage plate back and forth
It is dynamic, improve the effect for preventing airflow reflux.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of centrifugal fan for preventing airflow reflux schematic cross-sectional view；
Fig. 2 be the utility model proposes a kind of centrifugal fan for preventing airflow reflux structural schematic diagram；
Fig. 3 is schematic cross-sectional view at A-A in the utility model Fig. 1.
In figure: shell 1, flabellum 2, air duct 3, the first groove 4, first rotating shaft 5, connecting plate 6, drainage plate 7, through-hole 8, first
Placing groove 9, micromotor 10, second prevent slot 11, sprocket wheel 12, air outlet 13, cooling fin 14, air inlet 15, fixed screw
16, the second groove 41, the second shaft 51.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-3, a kind of centrifugal fan preventing airflow reflux, including shell 1, shell 1 are equipped with fixed screw
16, the side of shell 1 is equipped with air inlet 15, and the lower section of air inlet 15 is equipped with flabellum 2, and the side of flabellum 2 is equipped with air duct 3, air duct 3
Air-flow outflow is guided, the outside of shell 1 is equipped with fan motor, and the output end of fan motor is fixedly connected with flabellum 2, fan motor
Power is provided for flabellum 2.
The top in air duct 3 is equipped with several first grooves 4, is equipped with first rotating shaft 5, the bottom in air duct 3 in several first grooves 4
Equipped with several second grooves 41, the second shaft 51, the both ends of first rotating shaft 5 and the second shaft 51 are equipped in several second grooves 41
It is fixed on shell 1 by bearing respectively, the first groove 4 and the second groove 41 are symmetrical parallel settings, and the first groove 4 and
The quantity of two grooves 41 is respectively three.
The side of shell 1 is equipped with the first placing groove 9, and is located at the outside in air duct 3, first rotating shaft 5 and the second shaft 51
One end extends into the first placing groove 9, and is respectively equipped with several sprocket wheels 12, in the first rotating shaft 5 and in the second shaft 51
Sprocket wheel 12 is connected by the first chain respectively, is connected respectively by the first chain between the second shaft 51 between first rotating shaft 5
Get up, is independent of each other.
Shell 1 is equipped with the second placing groove 11 far from the side of the first placing groove 9, is equipped with micromotor in the second placing groove 11
10, wherein a first rotating shaft 5 extends in the second placing groove 11 far from one end of sprocket wheel 12, and it is connected to by shaft coupling micro-
On the output end of type motor 10, first rotating shaft 5 can be made to rotate by micromotor 10, adjusted the angle.
Wherein a first rotating shaft 5 is connected with wherein second shaft 51 by the second chain, can make first rotating shaft 5
Identical movement is kept with the second shaft 51.
Connecting plate 6 is respectively equipped in first rotating shaft 5 and the second shaft 51, connecting plate 6 is equipped with drainage plate 7,7 court of drainage plate
The air-out direction of air outlet 13 is obliquely installed, and drainage plate 7 can prevent airflow reflux, and drainage plate 7 is equipped with several through-holes 8, is led to
Hole 8 is conducive to air-flow and flows out out of channel 3, and air duct 3 is equipped with air outlet 13 far from the side of flabellum 2, is equipped with heat dissipation in air outlet 13
Piece 14, cooling fin 14 can effectively shed when centrifugal blower works and itself generate heat, in the work of practical centrifugal fan, air-flow warp
When crossing channel 3, drainage plate 7 can move deflection certain angle under the drive of micromotor 10, due to the inside gas of centrifugal fan
Stream can smoothly be flowed out by the through-hole 8 on drainage plate 7, and outer gas stream is not easy to flow into through the blocking of drainage plate 7, effectively prevent gas
It flows back to.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (5)
1. a kind of centrifugal fan for preventing airflow reflux, including shell (1), the shell (1) is equipped with fixed screw (16), institute
The side for stating shell (1) is equipped with air inlet (15), and the lower section of the air inlet (15) is equipped with flabellum (2), and the one of the flabellum (2)
Side is equipped with air duct (3), which is characterized in that the top of the air duct (3) is equipped with several first grooves (4), and several described first is recessed
First rotating shaft (5) are equipped in slot (4), the bottom of the air duct (3) is equipped with several second grooves (41), several second grooves
(41) the second shaft (51) are equipped in, the both ends of the first rotating shaft (5) and the second shaft (51) are fixed on by bearing respectively
On shell (1), the side of the shell (1) is equipped with the first placing groove (9), and is located at the outside of air duct (3), the first rotating shaft
(5) it is extended into the first placing groove (9) with one end of the second shaft (51), and is respectively equipped with several sprocket wheels (12), described first
It is connected respectively by the first chain in shaft (5) with the sprocket wheel (12) on the second shaft (51), the shell (1) is put far from first
The side for setting slot (9) is equipped with the second placing groove (11), micromotor (10) is equipped in second placing groove (11), wherein one
The first rotating shaft (5) extends in the second placing groove (11) far from the one end of sprocket wheel (12), and is connected to by shaft coupling micro-
On the output end of type motor (10), wherein a first rotating shaft (5) and wherein second shaft (51) pass through the
Two chains connect, and are respectively equipped with connecting plate (6) in the first rotating shaft (5) and the second shaft (51), set on the connecting plate (6)
Have drainage plate (7), the drainage plate (7) is equipped with several through-holes (8), and the air duct (3) is equipped with far from the side of flabellum (2)
Air port (13), the air outlet (13) is interior to be equipped with cooling fin (14).
2. a kind of centrifugal fan for preventing airflow reflux according to claim 1, which is characterized in that first groove
(4) and the second groove (41) is symmetrical parallel setting, and the quantity of the first groove (4) and the second groove (41) is respectively three.
3. a kind of centrifugal fan for preventing airflow reflux according to claim 1, which is characterized in that the drainage plate (7)
It is uniformly distributed between several through-holes (8) of upper setting.
4. a kind of centrifugal fan for preventing airflow reflux according to claim 1, which is characterized in that the drainage plate (7)
Air-out direction towards the air outlet (13) is obliquely installed.
5. a kind of centrifugal fan for preventing airflow reflux according to claim 1, which is characterized in that the shell (1)
Outside is equipped with fan motor, and the output end of the fan motor is fixedly connected with the flabellum (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820058755.0U CN208380905U (en) | 2018-01-15 | 2018-01-15 | A kind of centrifugal fan preventing airflow reflux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820058755.0U CN208380905U (en) | 2018-01-15 | 2018-01-15 | A kind of centrifugal fan preventing airflow reflux |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208380905U true CN208380905U (en) | 2019-01-15 |
Family
ID=64978362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820058755.0U Expired - Fee Related CN208380905U (en) | 2018-01-15 | 2018-01-15 | A kind of centrifugal fan preventing airflow reflux |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208380905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464449A (en) * | 2021-07-26 | 2021-10-01 | 杨继承 | Corrosion-resistant centrifugal pump |
-
2018
- 2018-01-15 CN CN201820058755.0U patent/CN208380905U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464449A (en) * | 2021-07-26 | 2021-10-01 | 杨继承 | Corrosion-resistant centrifugal pump |
| CN113464449B (en) * | 2021-07-26 | 2023-08-25 | 濮阳市国胜机械加工有限公司 | Corrosion-resistant centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20200115 |