CN210889453U - Fan blade structure of fire-fighting smoke exhaust fan - Google Patents
Fan blade structure of fire-fighting smoke exhaust fan Download PDFInfo
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- CN210889453U CN210889453U CN201921599075.0U CN201921599075U CN210889453U CN 210889453 U CN210889453 U CN 210889453U CN 201921599075 U CN201921599075 U CN 201921599075U CN 210889453 U CN210889453 U CN 210889453U
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- flabellum
- fan
- fan blade
- smoke exhaust
- fire
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Abstract
The utility model discloses a fire control smoke exhaust fan's flabellum structure, install the flabellum on wheel hub including wheel hub and a plurality of, the axial cross-section of flabellum is the arc, the radial cross-section of flabellum is fan-shaped, the flabellum includes outstanding windward side and sunken leeward side, the bottom and the wheel hub welded connection of flabellum, the bottom width of flabellum is less than the top width of flabellum, still be provided with a supporter connection between the lower extreme of leeward side and the wheel hub, the supporter plays stronger supporting role to whole flabellum, can produce and bear bigger wind pressure, make the fan rotate the in-process, can drive more air around playing and flow, make the fan can produce bigger amount of wind, thereby improve the volume of discharging fume.
Description
Technical Field
The utility model relates to a fire control ventilation technical field especially relates to a flabellum structure of fire control smoke exhaust fan.
Background
The fire-fighting smoke exhaust fan is common equipment in the field of building fire fighting, is used for smoke exhaust in case of fire, and is very important, but the existing fire-fighting smoke exhaust fan has small air pressure and low smoke exhaust speed, and the main reason is that the adopted fan blade structure is unreasonable.
Therefore, the technical personnel in the field are dedicated to develop a fan blade structure of a fire-fighting smoke exhaust fan with good smoke exhaust effect.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that a flabellum structure of fire control smoke exhaust fan that smoke exhaust effect is good is provided.
In order to achieve the above object, the utility model provides a fire control smoke exhaust fan's flabellum structure, install including wheel hub and a plurality of wheel hub's last flabellum, the axial cross-section of flabellum is the arc, the radial cross-section of flabellum is fan-shaped, the flabellum includes outstanding windward side and sunken leeward side, the bottom of flabellum with wheel hub welded connection, the bottom width of flabellum is less than the top width of flabellum, the lower extreme of leeward side with still be provided with a supporter connection between the wheel hub.
The height of the supporting body is at least 60% of the height of the fan blade, and the width of the supporting body is at least 40% of the width of the fan blade.
The support body is formed by welding two symmetrically-arranged triangular plates, and the support body is arranged at the central axis of the fan blade.
The bottom edge of the triangular plate is connected with the surface of the hub in a welding mode, and one side edge of the triangular plate is connected with the surface of the leeward side in a welding mode.
The bottom width of the fan blade is three-quarters of the top width.
The included angle between the trend of the fan blades on the surface of the hub and the end face of the hub is 30-33 degrees.
The surface of the fan blade is also paved with a ceramic nano coating.
The utility model has the advantages that: the utility model discloses a flabellum structure of fire control smoke exhaust fan, install the flabellum on wheel hub including wheel hub and a plurality of, the axial cross-section of flabellum is the arc, the radial cross-section of flabellum is fan-shaped, the flabellum includes outstanding windward side and sunken leeward side, the bottom and the wheel hub welded connection of flabellum, the bottom width of flabellum is less than the top width of flabellum, still be provided with a supporter between the lower extreme of leeward side and the wheel hub and be connected, the supporter plays stronger supporting role to whole flabellum, can produce and bear bigger wind pressure, make the fan rotate the in-process, can drive and play more air on every side and flow, make the fan can produce bigger amount of wind, thereby improve the volume of.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is one of the partial structural schematic diagrams of the present invention;
fig. 3 is a second partial schematic view of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein it is noted that, in the description of the invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 3, a flabellum structure of fire control smoke exhaust fan, install flabellum 2 on wheel hub 1 including wheel hub 1 and a plurality of, flabellum 2's axial cross-section is the arc, flabellum 2's radial cross-section is fan-shaped, flabellum 2 includes outstanding windward side 21 and sunken leeward side 22, flabellum 2's bottom and wheel hub 1 welded connection, flabellum 2's bottom width is less than flabellum 2's top width, still be provided with a supporter 3 between leeward side 22's lower extreme and the wheel hub 1 and be connected, supporter 3 plays stronger supporting role to whole flabellum, can produce and bear bigger wind pressure, make the fan in the rotation process, can drive more air around playing and flow, make the fan can produce bigger amount of wind, thereby improve the volume of discharging fume.
The support body 3 is formed by welding two symmetrically arranged triangular plates 31, and the support body 3 is arranged at the central axis of the fan blade 2; the bottom edge of the triangular plate 31 is welded with the surface of the hub 1, one side edge of the triangular plate 31 is welded with the surface of the leeward side 22, the triangular plate 31 has strong natural stability, and the supporting function of stepping the fan blades 2 can be achieved.
In this embodiment, referring to fig. 2 and 3, let the bottom width of the fan blade 2 be a, the top width of the fan blade 2 be d, the height of the support body 3 be b, the width of the support body 3 be c, the height of the fan blade 2 be e, the included angle between the direction of the fan blade 2 on the surface of the hub 1 and the end surface of the hub 1 be f, the height of the support body 3 be at least 60% of the height of the fan blade 2, and the width of the support body 3 be at least 40% of the width of the fan blade 2; the width of the bottom of the fan blade 2 is three quarters of the width of the top; the included angle between the trend of the fan blade 2 on the surface of the hub 1 and the end surface of the hub 1 is 30-33 degrees, the hydrodynamic property of the fan blade 2 is further improved, and the smoke exhaust is more efficient.
In addition, the surface of the fan blade 2 is also paved with a ceramic nano coating which is an aluminum oxide coating, so that the hardness of the fan blade 2 is increased, the surface structure of the fan blade 2 is improved, the fan blade 2 is enabled to be more non-sticky, smoke dust is avoided being infected, and the high temperature resistance is also enhanced.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. The utility model provides a flabellum structure of fire control smoke exhaust fan, includes that wheel hub (1) and a plurality of install flabellum (2) on wheel hub (1), characterized by: the axial cross-section of flabellum (2) is the arc, the radial cross-section of flabellum (2) is fan-shaped, flabellum (2) are including outstanding windward side (21) and sunken leeward side (22), the bottom of flabellum (2) with wheel hub (1) welded connection, the bottom width of flabellum (2) is less than the top width of flabellum (2), the lower extreme of leeward side (22) with still be provided with a supporter (3) between wheel hub (1) and connect.
2. The fan blade structure of the fire-fighting smoke exhaust fan as set forth in claim 1, characterized in that: the height of the supporting body (3) is at least 60% of the height of the fan blade (2), and the width of the supporting body (3) is at least 40% of the width of the fan blade (2).
3. The fan blade structure of the fire-fighting smoke exhaust fan as claimed in claim 2, characterized in that: the support body (3) is formed by welding two symmetrically-arranged triangular plates (31), and the support body (3) is arranged at the central axis of the fan blade (2).
4. The fan blade structure of the fire-fighting smoke exhaust fan as claimed in claim 3, characterized in that: the bottom edge of the triangular plate (31) is connected with the surface of the hub (1) in a welding mode, and one side edge of the triangular plate (31) is connected with the surface of the leeward side (22) in a welding mode.
5. The fan blade structure of the fire-fighting smoke exhaust fan as set forth in claim 1, characterized in that: the bottom width of the fan blade (2) is three-quarters of the top width.
6. The fan blade structure of the fire-fighting smoke exhaust fan as set forth in claim 1, characterized in that: the included angle between the trend of the fan blades (2) on the surface of the hub (1) and the end surface of the hub (1) is 30-33 degrees.
7. The fan blade structure of the fire-fighting smoke exhaust fan as set forth in claim 1, characterized in that: the surface of the fan blade (2) is further paved with a ceramic nano coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921599075.0U CN210889453U (en) | 2019-09-25 | 2019-09-25 | Fan blade structure of fire-fighting smoke exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921599075.0U CN210889453U (en) | 2019-09-25 | 2019-09-25 | Fan blade structure of fire-fighting smoke exhaust fan |
Publications (1)
| Publication Number | Publication Date |
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| CN210889453U true CN210889453U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921599075.0U Active CN210889453U (en) | 2019-09-25 | 2019-09-25 | Fan blade structure of fire-fighting smoke exhaust fan |
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| CN (1) | CN210889453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112383170A (en) * | 2020-08-19 | 2021-02-19 | 招国梅 | Outer rotor permanent magnet motor and fan using same |
-
2019
- 2019-09-25 CN CN201921599075.0U patent/CN210889453U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112383170A (en) * | 2020-08-19 | 2021-02-19 | 招国梅 | Outer rotor permanent magnet motor and fan using same |
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