CN215719670U - Multistage oblique flow fan - Google Patents
Multistage oblique flow fan Download PDFInfo
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- CN215719670U CN215719670U CN202122007058.7U CN202122007058U CN215719670U CN 215719670 U CN215719670 U CN 215719670U CN 202122007058 U CN202122007058 U CN 202122007058U CN 215719670 U CN215719670 U CN 215719670U
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- flow fan
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- diagonal flow
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Abstract
The utility model relates to a multi-stage diagonal flow fan which comprises a frustum-shaped shell, wherein a driving motor is installed in the frustum-shaped shell, the output end of the driving motor is connected with a rotating shaft, fan blades are fixedly installed at the outer end of the rotating shaft, an air inlet and an air outlet are formed in the frustum-shaped shell, a grading regulation and control assembly is arranged in the air outlet and comprises a fixed disc and an adjusting disc which is rotatably arranged on the fixed disc in the axial direction, a first drilling part and a first non-drilling part are formed in the fixed disc through drilling, and a second drilling part and a second non-drilling part are formed in the adjusting disc through drilling. This multistage formula diagonal flow fan, simple structure, and be convenient for carry out reasonable regulation, reasonable in design to diagonal flow fan's exhaust flow.
Description
Technical Field
The utility model belongs to the technical field of diagonal flow fans, and particularly relates to a multi-stage diagonal flow fan.
Background
The oblique flow fan is also called a mixed flow fan and is a fan between an axial flow fan and a centrifugal fan, an impeller of the oblique flow fan enables air to do centrifugal motion and axial motion, and the motion of the air in a shell is mixed with two motion modes of axial flow and centrifugation.
The diagonal flow fan is widely applied to ventilation and air exhaust of high-grade civil buildings such as hotels, restaurants, shopping malls, office buildings, gymnasiums and the like, pipeline pressurization and air supply and ventilation places of industrial and mining enterprises.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provide a multi-stage diagonal flow fan which is simple in structure, convenient for reasonably adjusting the exhaust flow of the diagonal flow fan and reasonable in design.
The utility model realizes the purpose through the following technical scheme:
the utility model provides a multistage formula diagonal flow fan, includes frustum shape casing, install driving motor in the frustum shape casing, driving motor's output is connected with the pivot, the outer end fixed mounting of pivot has the fan blade, be equipped with air intake and air outlet on the frustum shape casing, be equipped with hierarchical regulation and control subassembly in the air outlet, hierarchical regulation and control subassembly includes fixed disc and rotates and locates the ascending adjustment disc of fixed disc axial, form first drilling portion and first non-drilling portion through drilling in the fixed disc, form second drilling portion and the non-drilling portion of second through drilling in the adjustment disc.
As a further optimization scheme of the utility model, the graded regulation and control assembly further comprises a first vent hole arranged at the central position of the fixed disc, and a second vent hole is arranged at the central position of the adjusting disc; the design aims at that: the circulation of the air flow in the frustum-shaped shell is convenient to ensure.
As a further optimization scheme of the utility model, the aperture size of the first vent hole is equal to the aperture size of the second vent hole, and the central axes of the first vent hole and the second vent hole are overlapped with each other; the design aims at that: the frustum-shaped shell is convenient to be communicated with the outside of the frustum-shaped shell.
As a further optimized scheme of the utility model, the first drilling part is provided with 3 groups in the fixed disc at equal angles, and the second drilling part is provided with 3 groups in the adjusting disc at equal angles; the design aims at that: the overlapping area of the holes of the first drilling part and the second drilling part is adjusted, so that the gas flow is adjusted, and the applicability is wide.
As a further optimization of the utility model, the adjusting disk rotates in the fixed disk by an angle in the range of 0 to 60 °.
The utility model has the beneficial effects that: simple structure, and be convenient for carry out reasonable regulation, reasonable in design to the exhaust flow of diagonal flow fan.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic side view of a split axis of the hierarchical regulatory assembly of the present invention;
FIG. 3 is a schematic side view of the combined axial structure of the hierarchical regulating assembly of the present invention;
fig. 4 is a schematic view of the structure of the adjusting disk rotating shaft side of the utility model.
In the figure: 1. a frustum-shaped housing; 2. a drive motor; 3. a rotating shaft; 4. a fan blade; 5. an air inlet; 6. an air outlet; 7. a hierarchical regulation component; 71. fixing the disc; 72. adjusting the disc; 73. a first vent hole; 74. and a second vent hole.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1, a multistage oblique flow fan comprises a frustum-shaped shell 1, a driving motor 2 is installed in the frustum-shaped shell 1, an output end of the driving motor 2 is connected with a rotating shaft 3, a fan blade 4 is fixedly installed at the outer end of the rotating shaft 3, and an air inlet 5 and an air outlet 6 are arranged on the frustum-shaped shell 1.
When the air conditioner is used, a user firstly connects the external power supply of the frustum-shaped shell 1, and under the action of the driving motor 2, the rotating shaft 3 rotates, meanwhile, the fan blades 4 are driven to rotate, indoor air enters the frustum-shaped shell 1 through the air inlet 5 by the rotation of the fan blades 4, and the indoor air is discharged to the outside from the air outlet 6.
As shown in fig. 2, a stepped regulation and control assembly 7 is arranged in the air outlet 6, the stepped regulation and control assembly 7 comprises a fixed disc 71 and an adjusting disc 72 which is rotatably arranged on the fixed disc 71 in the axial direction, a first drilling part and a first non-drilling part are formed in the fixed disc 71 through drilling, and a second drilling part and a second non-drilling part are formed in the adjusting disc 72 through drilling; the grading regulation and control assembly 7 further comprises a first vent hole 73 arranged at the center of the fixed disc 71, and a second vent hole 74 arranged at the center of the adjusting disc 72; the aperture size of the first vent hole 73 is equal to that of the second vent hole 74, and the central axes of the first vent hole 73 and the second vent hole 74 are overlapped; the first drilling part is provided with 3 groups in the fixed disc 71 at equal angles, and the second drilling part is provided with 3 groups in the adjusting disc 72 at equal angles; the adjusting disk 72 rotates in the fixed disk 71 by an angle ranging from 0 to 60 °.
As shown in fig. 3, in the process of discharging gas, due to different situations of use of the diagonal flow fan, the requirement for the exhaust flow rate of the diagonal flow fan is different, when the flow rate of the diagonal flow fan needs to be adjusted, a user first rotates the adjusting disc 72 by hand, during the rotation of the adjusting disc 72, the second drilling portion in the adjusting disc 72 coincides with the first drilling portion in the fixed disc 71, when the second drilling portion and the second drilling portion completely coincide, the gas flow rate is the largest, as shown in fig. 4, when the second non-drilling portion of the adjusting disc 72 rotates to completely block the first drilling portion in the fixed disc 71, the gas flow rate is the smallest, and the smallest gas flow is discharged to the outside of the frustum-shaped housing 1 along the second vent hole 74 and the first vent hole 73.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (5)
1. The utility model provides a multistage formula diagonal flow fan, includes frustum shape casing (1), install driving motor (2) in frustum shape casing (1), the output of driving motor (2) is connected with pivot (3), the outer end fixed mounting of pivot (3) has fan blade (4), its characterized in that: be equipped with air intake (5) and air outlet (6) on frustum shape casing (1), be equipped with hierarchical regulation and control subassembly (7) in air outlet (6), hierarchical regulation and control subassembly (7) locate fixed disc (71) ascending adjustment disc (72) with rotating including fixed disc (71), form first drilling portion and first non-drilling portion through drilling in fixed disc (71), form second drilling portion and the non-drilling portion of second through drilling in adjustment disc (72).
2. The multi-stage diagonal flow fan of claim 1, wherein: the hierarchical regulation and control assembly (7) further comprises a first ventilation hole (73) arranged in the center of the fixed disc (71), and a second ventilation hole (74) is arranged in the center of the adjusting disc (72).
3. The multi-stage diagonal flow fan of claim 2, wherein: the aperture size of the first vent hole (73) is equal to the aperture size of the second vent hole (74), and the central axes of the first vent hole (73) and the second vent hole (74) are overlapped.
4. The multi-stage diagonal flow fan of claim 1, wherein: the first drilling part is provided with 3 groups in the fixed disc (71) at equal angles, and the second drilling part is provided with 3 groups in the adjusting disc (72) at equal angles.
5. The multi-stage diagonal flow fan of claim 1, wherein: the rotation angle of the adjusting disc (72) in the fixed disc (71) ranges from 0 to 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122007058.7U CN215719670U (en) | 2021-08-24 | 2021-08-24 | Multistage oblique flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122007058.7U CN215719670U (en) | 2021-08-24 | 2021-08-24 | Multistage oblique flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215719670U true CN215719670U (en) | 2022-02-01 |
Family
ID=80006645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122007058.7U Active CN215719670U (en) | 2021-08-24 | 2021-08-24 | Multistage oblique flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215719670U (en) |
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2021
- 2021-08-24 CN CN202122007058.7U patent/CN215719670U/en active Active
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