CN215171051U - Symmetrical casing of centrifugal fan - Google Patents
Symmetrical casing of centrifugal fan Download PDFInfo
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- CN215171051U CN215171051U CN202121374754.5U CN202121374754U CN215171051U CN 215171051 U CN215171051 U CN 215171051U CN 202121374754 U CN202121374754 U CN 202121374754U CN 215171051 U CN215171051 U CN 215171051U
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- centrifugal fan
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- guide pipe
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Abstract
The utility model discloses a centrifugal fan's symmetry casing relates to centrifugal fan technical field, increases the symmetry aesthetic property of casing outward appearance, and its technical scheme main points are: including setting up this external and extension board to air-out casing direction extension of centrifugal fan, the whole edge that extension board and centrifugal fan body formed is the axisymmetric edge, form the amortization cavity between extension board and air-out casing, extension board and the centrifugal fan body, the amortization cavity intussuseption is filled with inhales the cotton layer of sound, a plurality of sound holes of inhaling have been seted up on the air-out casing.
Description
Technical Field
The utility model relates to a centrifugal fan technical field, more specifically say, it relates to a centrifugal fan's symmetry casing.
Background
Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.
Chinese patent with publication number CN213270481U discloses a centrifugal fan with noise reduction and noise reduction functions, which comprises a centrifugal fan body, and an air inlet casing and an air outlet casing which are arranged on the centrifugal fan body, wherein the inner side wall of the air inlet casing is in threaded connection with a mounting ring, and the inner side wall of the mounting ring is fixedly connected with a metal block net.
However, as for the centrifugal fan disclosed above, the air outlet pipe of the centrifugal fan and the centrifugal fan body are eccentrically arranged, the appearance is not symmetrical and beautiful, and the requirement can not be met when the appearance attractiveness is required in some industries.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a centrifugal fan's symmetry casing, its advantage lies in, increases the symmetry aesthetic property of casing outward appearance.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a centrifugal fan's symmetry casing, is including setting up this external extension board that just extends to air-out casing direction at centrifugal fan, the whole edge that extension board and centrifugal fan body formed is the axisymmetric edge, form the amortization cavity between extension board and air-out casing, extension board and the centrifugal fan body, the amortization cavity intussuseption is filled with inhales the cotton layer of sound, a plurality of sound holes of inhaling have been seted up on the air-out casing.
Through adopting above-mentioned technical scheme, the setting up of extension board makes the whole edge that extension board and centrifugal fan body formed be the axisymmetric edge, increases the symmetry aesthetic property of casing outward appearance, and the noise in the air-out casing of being convenient for of the design of inhaling the sound hole in addition is inhaled the cotton layer of sound and is absorbed, and then reduces the noise when air-out casing goes out wind, and the design of extension board this moment has increased the aesthetic property of casing on the one hand, and on the other hand is convenient for place and inhales the cotton layer of sound.
Preferably: the centrifugal fan comprises an extension plate, an air outlet shell, an air guide pipe and a sealing plate, wherein the extension plate is arranged on the outer side of the air outlet shell, the air outlet shell is arranged on the outer side of the extension plate, the air guide pipe is arranged at one end, far away from the centrifugal fan body, of the air outlet shell, and the end, far away from the air outlet shell, of the air guide pipe is connected with the extension plate through the sealing plate.
Preferably: the closed plate is detachably connected to the air guide pipe and the extension plate through a first bolt.
Preferably: the cross section of the air outlet shell is a parallelogram, the air guide pipe is a tapered pipe, and the taper of one end, close to the air outlet shell, of the air guide pipe is larger.
Preferably: the air guide pipe is detachably connected with the air outlet shell through a connecting piece.
Preferably: the cross section of the air guide pipe is square, the connecting piece comprises a plurality of first plates fixed on the air guide pipe through second bolts and a second plate hinged to one end of each first plate, and the second plates are fixed on the air outlet shell through third bolts.
Preferably: the extension board is equipped with the inclined plane to keeping away from air-out casing direction slope when transitioning to the air-out casing outside from the centrifugal fan body, extends to the air outlet of air-out casing afterwards.
To sum up, the utility model discloses following beneficial effect has: the setting up of extension board makes the whole edge that extension board and centrifugal fan body formed be the axisymmetric edge, increases the symmetry aesthetic property of casing outward appearance, and the noise in the design of inhaling the sound hole in addition is convenient for the air-out casing is inhaled the cotton layer of sound and is absorbed, and then reduces the noise when air-out casing is out of the wind, and the design of extension board this moment has increased the aesthetic property of casing on the one hand, and on the other hand is convenient for place and inhales the cotton layer of sound.
Drawings
FIG. 1 is a schematic structural view of the present embodiment;
fig. 2 is a schematic structural diagram of the air outlet casing according to the embodiment;
fig. 3 is a schematic structural view for embodying the first plate of the present embodiment.
In the figure: 1. a centrifugal fan body; 11. an extension plate; 12. an air outlet shell; 131. a sound absorbing cotton layer; 132. a sound absorption hole; 14. an air guide pipe; 141. a closing plate; 15. a first bolt; 16. a second bolt; 161. a first plate; 162. a second plate; 163. a third bolt; 17. an inclined surface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a centrifugal fan's symmetry casing, as figure 1 and figure 2, including setting up the extension board 11 that just extends to air-out casing 12 direction outside centrifugal fan body 1, the whole edge that extension board 11 and centrifugal fan body 1 formed is the axisymmetric edge, it is axisymmetric to see from centrifugal fan body 1 openly and the side promptly, extension board 11 and air-out casing 12, form the amortization cavity between extension board 11 and the centrifugal fan body 1, the amortization cavity intussuseption is filled with inhales the cotton layer 131 of sound, a plurality of sound holes 132 of inhaling have been seted up on the air-out casing 12. Centrifugal fan body 1 and air-out casing 12 are prior art, have the air inlet casing on the centrifugal fan body 1, and these are indispensable and do not explain here.
Like fig. 1 and 2, the setting of extension board 11 makes the whole edge that extension board 11 and centrifugal fan body 1 formed be the axisymmetric edge, increases the symmetry aesthetic property of casing outward appearance, and the design of inhaling sound hole 132 is convenient for the noise in the air-out casing 12 to be absorbed by inhaling cotton layer 131 of sound in addition, and then reduces the noise when air-out casing goes out the wind, and the design of extension board 11 has increased the aesthetic property of casing this moment on the one hand, and on the other hand is convenient for place and inhales cotton layer 131 of sound.
As shown in fig. 1 and fig. 2, one end of the extension plate 11 extends out of the air outlet casing 12, one end of the air outlet casing 12, which is far away from the centrifugal fan body 1, is provided with an air guide pipe 14, and one end of the air guide pipe 14, which is far away from the air outlet casing 12, is connected to the extension plate 11 through a closing plate 141. At this time, the length of the air outlet casing 12 is increased by the design of the air guide pipe 14, so that air guide is facilitated, and in addition, the wind strength of the air outlet casing 12 is convenient to change through the air guide pipe 14, so that the use requirement is met.
Referring to fig. 1 and 2, the closing plate 141 is detachably coupled to the air guide duct 14 and the extension plate 11 by the first bolt 15. The closing plate 141 is disposed to fix the sound absorbing cotton layer 131.
As shown in fig. 2 and 3, the cross section of the air outlet casing 12 is a parallelogram, the air guiding pipe 14 is a tapered pipe, the tapered pipe is designed to change the wind power at the air outlet of the air outlet casing 12 according to the requirement of the user, and the taper of the end of the air guiding pipe 14 close to the air outlet casing 12 is larger.
As shown in fig. 2 and fig. 3, the air guiding duct 14 is detachably connected to the air outlet casing 12 through a connector. This facilitates replacement of the air guiding duct 14.
Referring to fig. 2 and 3, the cross section of the air guiding duct 14 is square, the connecting member includes a plurality of first plates 161 fixed on the air guiding duct 14 by the second bolts 16 and a second plate 162 hinged at one end of the first plates 161, and the second plate 162 is fixed on the outlet casing 12 by the third bolts 163. When the air conditioner is installed, the first plate 161 is installed on the air guide pipe 14 through the second bolt 16, then the second plate 162 is installed on the air outlet casing 12 through the third bolt 163, and the first plate 161 and the second plate 162 are hinged so that the first plate 161 and the second plate 162 are attached to the air guide pipe 14 and the air outlet casing 12 respectively and are convenient to install.
Like fig. 1, in addition, the extension board 11 of centrifugal fan body in the one side of installation motor and seting up the wind gap is equipped with the inclined plane 17 to keeping away from the slope of wind-out casing 12 direction when going over to wind-out casing 12 outside from centrifugal fan body 1, extends to the air outlet of wind-out casing 12 again afterwards, and the design of inclined plane 17 has increased the space of amortization cavity, and then is convenient for install more cotton layer 131 of inhaling sound.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a centrifugal fan's symmetry casing, characterized by: including setting up extension board (11) outside centrifugal fan body (1) and extending to air-out casing (12) direction, the whole edge that extension board (11) and centrifugal fan body (1) formed is the axisymmetric edge, form the amortization cavity between extension board (11) and air-out casing (12), extension board (11) and centrifugal fan body (1), the amortization cavity intussuseption is filled with inhales cotton layer of sound (131), a plurality of sound holes (132) of inhaling have been seted up on air-out casing (12).
2. The symmetrical enclosure of a centrifugal fan as claimed in claim 1, wherein: one end of the extension plate (11) extends out of the air outlet casing (12), an air guide pipe (14) is arranged at one end, far away from the centrifugal fan body (1), of the air outlet casing (12), and one end, far away from the air outlet casing (12), of the air guide pipe (14) is connected with the extension plate (11) through a sealing plate (141).
3. The symmetrical enclosure of a centrifugal fan as claimed in claim 2, wherein: the closing plate (141) is detachably connected to the air guide pipe (14) and the extension plate (11) through a first bolt (15).
4. A symmetric casing of a centrifugal fan according to claim 2 or 3, wherein: the cross section of the air outlet casing (12) is a parallelogram, the air guide pipe (14) is a tapered pipe, and the taper of one end, close to the air outlet casing (12), of the air guide pipe (14) is larger.
5. The symmetrical enclosure of a centrifugal fan as claimed in claim 4, wherein: the air guide pipe (14) is detachably connected with the air outlet shell (12) through a connecting piece.
6. The symmetrical enclosure of a centrifugal fan as claimed in claim 5, wherein: the cross section of the air guide pipe (14) is square, the connecting piece comprises a plurality of first plates (161) fixed on the air guide pipe (14) through second bolts (16) and second plates (162) hinged to one ends of the first plates (161), and the second plates (162) are fixed on the air outlet casing (12) through third bolts (163).
7. The symmetrical enclosure of a centrifugal fan as claimed in claim 1, wherein: the extension plate (11) is provided with an inclined surface (17) inclined towards the direction far away from the air outlet casing (12) when the extension plate is transited to the outside of the air outlet casing (12) from the centrifugal fan body (1), and then extends towards the air outlet of the air outlet casing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121374754.5U CN215171051U (en) | 2021-06-21 | 2021-06-21 | Symmetrical casing of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121374754.5U CN215171051U (en) | 2021-06-21 | 2021-06-21 | Symmetrical casing of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215171051U true CN215171051U (en) | 2021-12-14 |
Family
ID=79384606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121374754.5U Active CN215171051U (en) | 2021-06-21 | 2021-06-21 | Symmetrical casing of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215171051U (en) |
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2021
- 2021-06-21 CN CN202121374754.5U patent/CN215171051U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230727 Address after: No. 69, Baoxiang Road, Jiangning District, Nanjing, Jiangsu 210000 Patentee after: Nanjing Ningrun Fan Co.,Ltd. Address before: No. 20, Fengji Avenue, Yuhua Economic Development Zone, Yuhuatai District, Nanjing, Jiangsu 210000 Patentee before: Nanjing Fan Factory Co.,Ltd. |