CN210141224U - Fan blower - Google Patents
Fan blower Download PDFInfo
- Publication number
- CN210141224U CN210141224U CN201920754307.9U CN201920754307U CN210141224U CN 210141224 U CN210141224 U CN 210141224U CN 201920754307 U CN201920754307 U CN 201920754307U CN 210141224 U CN210141224 U CN 210141224U
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- China
- Prior art keywords
- air inlet
- fan
- inlet plate
- central portion
- housing
- Prior art date
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Abstract
The utility model discloses a fan, which comprises a shell and an air inlet plate; the air inlet side of the shell is provided with a plurality of circumferentially arranged air inlets, the air inlet plate comprises a plurality of circumferentially arranged blades, the air inlet plate is rotatably connected to the shell, and each blade covers a part or all of each air inlet. The fan can realize effective regulation of air inlet amount and uniform distribution of air inlet area of the fan through the matching of the fan blade-shaped air inlet plate and the fan blade-shaped air inlet, can effectively reduce the working noise of the fan, is convenient to operate, and can regulate the air inlet amount through rotation.
Description
Technical Field
The utility model relates to a machine-building field, in particular to fan.
Background
The application of the fan in industrial production is very wide. According to the in service behavior, the power of fan can change, and the intake demand of fan also can change at this moment, but current fan generally adopts fixed air intake, can not correspond the demand that the intake of fan changed like this.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a fan with adjustable air intake in order to overcome the not adjustable defect of prior art air intake.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
a fan comprises a shell and an air inlet plate; the air inlet side of the shell is provided with a plurality of circumferentially arranged air inlets, the air inlet plate comprises a plurality of circumferentially arranged blades, the air inlet plate is rotatably connected to the shell, and each blade covers a part or all of each air inlet.
Preferably, the shell is provided with a plurality of adjusting holes, the air inlet plate is provided with a positioning hole, and the air inlet plate is fixed to the shell by a threaded member penetrating through the positioning hole and one of the adjusting holes.
Preferably, a plurality of the adjustment holes are provided in a circumferential array.
Preferably, the air inlet plate further comprises a central portion, the blades are connected to the central portion, and the positioning holes are formed in the central portion.
Preferably, the shape of the air inlet is a sector.
Preferably, the air inlet plate further comprises a central portion, and the blades are connected to the central portion.
Preferably, the vanes are provided inside the housing.
Preferably, the shell is further provided with a connecting hole, the plurality of air inlets are distributed around the connecting hole, and the central portion penetrates through the connecting hole.
Preferably, the casing is provided with a plurality of adjusting holes, the air inlet plate is provided with a positioning hole, the air inlet plate penetrates through the positioning hole and one of the adjusting holes through a threaded member to be fixed to the casing, and the adjusting hole is formed between the connecting hole and the air inlet.
Preferably, the threaded member is a screw or bolt.
Preferably, the number and shape of the blades correspond to those of the air inlets.
The utility model discloses an actively advance the effect and lie in: the fan can realize effective regulation of air inlet amount and uniform distribution of air inlet area of the fan through the matching of the fan blade-shaped air inlet plate and the fan blade-shaped air inlet, can effectively reduce the working noise of the fan, is convenient to operate, and can regulate the air inlet amount through rotation.
Drawings
Fig. 1 is a schematic perspective view of a blower according to a preferred embodiment of the present invention.
Fig. 2 is a schematic side view of a fan according to a preferred embodiment of the present invention.
Fig. 3 is a schematic perspective view of an air inlet plate according to a preferred embodiment of the present invention.
Fig. 4 is a schematic perspective view of the air inlet side of the housing according to the preferred embodiment of the present invention.
Fig. 5 is another schematic side view of the fan according to the preferred embodiment of the present invention.
Description of reference numerals:
Adjusting hole 23
The center portion 32
Detailed Description
The present invention will be further described by way of examples with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1-2, blower 10 includes a housing 20 and an air inlet panel 30.
The air inlet side 21 of the housing 20 is provided with a plurality of circumferentially arranged air inlets 22, the air inlet panel 30 includes a plurality of circumferentially arranged vanes 31, the air inlet panel 30 is rotatably attached to the housing 20 and each vane 31 covers a portion or all of each air inlet 22.
In the present embodiment, the number and shape of the vanes 31 correspond to those of the intake vents 22. However, the present invention is not limited to this, and those skilled in the art may set the number of the blades to be less than that of the air inlet, or the shape of the blades is different from that of the air inlet.
The numbers and shapes herein correspond to equal numbers and shapes. By substantially the same shape is meant that the vanes 31 are sized to completely cover the intake vent 22 but not be substantially larger than the intake vent, preferably with no more than a 5% difference in their area, while the shape of the vanes 31 and the shape of the intake vent 22 should be substantially the same, but allowing for slight differences, such as the vanes 31 being triangular in shape and the intake vent 22 being fan-shaped as shown in FIG. 1, or vice versa, or the vanes 31 being square in shape and the intake vent 22 being rectangular in shape and the area thereof being nearly rectangular, or vice versa.
In the present embodiment, the intake vent 22 has a fan shape. However, the present invention is not limited thereto, and those skilled in the art may also configure the air inlet 22 into other shapes, such as triangle, square, parallelogram, etc., as required.
In the present embodiment, the number of the vanes 31 and the air inlet 22 is 4. However, the present invention is not limited to this, and those skilled in the art can set the number of the blades and the air inlet at will according to the requirement.
The housing 20 is provided with a plurality of adjustment holes 23, the air inlet plate 30 is provided with a positioning hole 33, and the air inlet plate 30 is fixed to the housing 20 by a screw member passing through the positioning hole 33 and one of the plurality of adjustment holes 23. The threaded member may be a screw or bolt, etc.
Each of the adjustment holes 23 corresponds to a shift of the intake air amount so that the vane 31 can be fixed at a plurality of positions between completely covering the intake opening 22 and completely uncovering the intake opening 22.
The plurality of adjustment holes 23 are arranged in a circumferential array. When the air inlet plate 30 is rotated to different positions, the screw member connects the positioning hole 33 with different adjusting holes 23 to fix the air inlet plate 30 relative to the housing 20.
In the present embodiment, the opening of the air inlet 22 is adjusted by connecting the adjusting hole 23 and the positioning hole 33, but the present invention is not limited thereto, and those skilled in the art can select other adjusting methods as needed, such as perforating the center of the air inlet plate 30 and the center of the air inlet side 21, and fixing and changing the rotating position of the air inlet plate 30 by the tightness of the bolts passing through the two holes.
As shown in fig. 3, the air inlet plate 30 further includes a central portion 32, the blades 31 are attached to the central portion 32, and the positioning holes 33 are provided in the central portion 32.
As shown in fig. 4, the air inlet side 21 of the housing 20 is further provided with a connection hole around which a plurality of air inlets 22 are arranged, and a central portion 32 is perforated.
The adjusting hole 23 is provided between the connecting hole and the intake port 22. This avoids the adjusting holes 23 being formed in the vane 31, which would reduce the strength of the vane 31, and the vane 31 should be covered by the air inlet 22 to withstand a large fluid pressure, which is needed to avoid the strength reduction as much as possible.
In the present embodiment, the blade 31 is provided inside the casing 20. However, the present invention is not limited to this, and the blades 31 may be disposed outside the casing 20 to cover the air inlet 22 from the outside.
Fig. 5 illustrates a side view of the fan 10. The intake vent 22 is opened larger in fig. 5 relative to the increased intake air demand of the blower 10 of fig. 2. The vanes 31 are hatched in fig. 2 and 5 for clarity of illustration.
The manner of use of the fan 10 of the present embodiment is briefly described below.
Firstly, determining the air intake, selecting different adjusting holes 23 according to the air intake, aligning the positioning hole 33 with the selected adjusting hole 23, and fixedly connecting the two by using a threaded member.
The fan 10 can realize effective regulation of air inlet amount and uniform distribution of air inlet area of the fan 10 by matching the fan-shaped air inlet plate 30 and the fan-shaped air inlet 22, and can effectively reduce air flowLow operating noise and operation of the fan 10 Therefore, the air inlet amount can be adjusted by rotating.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are used in the orientation or positional relationship indicated in the drawings, which are for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention unless otherwise indicated herein.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.
Claims (10)
1. The fan is characterized by comprising a shell and an air inlet plate; the air inlet side of the shell is provided with a plurality of circumferentially arranged air inlets, the air inlet plate comprises a plurality of circumferentially arranged blades, the air inlet plate is rotatably connected to the shell, and each blade covers a part or all of each air inlet.
2. The fan as claimed in claim 1 wherein a plurality of adjustment apertures are provided in said housing, a positioning aperture is provided in said air inlet plate, and said air inlet plate is secured to said housing by a threaded member passing through said positioning aperture and one of said plurality of adjustment apertures.
3. The fan of claim 2 wherein a plurality of the adjustment apertures are arranged in a circumferential array.
4. The fan of claim 2 wherein the air inlet panel further comprises a central portion, the vanes being attached to the central portion, the positioning holes being disposed in the central portion.
5. The fan as claimed in claim 1, wherein the inlet is shaped as a sector.
6. The fan of claim 1 wherein the air inlet panel further comprises a central portion, the vanes being attached to the central portion.
7. The fan of claim 6 wherein the blades are disposed on an inner side of the housing.
8. The fan as claimed in claim 7, wherein the housing further has a connection hole, a plurality of air inlets are arranged around the connection hole, and the central portion is inserted into the connection hole.
9. The fan as claimed in claim 8 wherein the housing defines a plurality of adjustment apertures, the air inlet plate defines a positioning aperture, the air inlet plate is secured to the housing by a threaded member passing through the positioning aperture and one of the plurality of adjustment apertures, and the adjustment aperture is defined between the attachment aperture and the air inlet.
10. The fan of claim 1 wherein the number and shape of the vanes corresponds to the number and shape of the air inlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920754307.9U CN210141224U (en) | 2019-05-23 | 2019-05-23 | Fan blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920754307.9U CN210141224U (en) | 2019-05-23 | 2019-05-23 | Fan blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210141224U true CN210141224U (en) | 2020-03-13 |
Family
ID=69734268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920754307.9U Active CN210141224U (en) | 2019-05-23 | 2019-05-23 | Fan blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210141224U (en) |
-
2019
- 2019-05-23 CN CN201920754307.9U patent/CN210141224U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |