CN202673777U - Exhaust fan blades capable of blowing in two directions - Google Patents
Exhaust fan blades capable of blowing in two directions Download PDFInfo
- Publication number
- CN202673777U CN202673777U CN 201220299556 CN201220299556U CN202673777U CN 202673777 U CN202673777 U CN 202673777U CN 201220299556 CN201220299556 CN 201220299556 CN 201220299556 U CN201220299556 U CN 201220299556U CN 202673777 U CN202673777 U CN 202673777U
- Authority
- CN
- China
- Prior art keywords
- exhaust fan
- blade
- fan blades
- section
- cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to exhaust fan blades capable of blowing in two directions. The exhaust fan blades comprise a middle connecting part which is connected with a rotating shaft of a motor, wherein a plurality of blade bodies extend and are connected to the middle connecting part according to the peripheral direction; the cross section of each blade body is S-shaped; the widths of the blade bodies with the S-shaped cross sections extend from an initial end for connecting the middle connecting part to a tail end and increase gradually; the cross sections of the blade bodies are S-shaped (or waved), so that the front sides and the back sides of the blade bodies are provided with wind guiding faces and are matched with forward and backward rotation functions of the motor, a bidirectional blowing function of the exhaust fan blades can be realized, fresh air can be exhausted into the indoor, freshness and safety of indoor air are guaranteed, the exhaust fan blades are simple and reasonable in structure and low in manufacturing cost, the application range of an exhaust fan is improved effectively, and the application flexibility of the product is improved.
Description
Technical field
The utility model relates to a kind of ventilating fan technical field, and is especially a kind of simple and reasonable for structure, can realize the exhaust fan blade of two-way blowing.
Background technique
At present, existing ventilating fan, its blade structure is generally plane, and indoor gas discharge is outdoor, reaches the exhaust ventilation effect, but because the plane design of blade, fan blade can only be unidirectional with the gas of a side discharged to opposite side, even and motor possesses the clockwise and anticlockwise function, also can't realize the bi-directional venting of fan blade, need the use occasion of bi-directional venting for some, namely can't reach its usage requirement.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, and provides a kind of simple and reasonable for structure, can realize the exhaust fan blade of two-way blowing.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of exhaust fan blade that can two-way blowing, comprise the middle interconnecting piece that is connected with machine shaft, be connected with the polylith blade by the circumferencial direction extension on the middle interconnecting piece, it is characterized in that, the cross section of described every blade is S shape, and cross section is that the width of blade of S shape extends to end by the top that connects middle interconnecting piece and is gradually and increases; Adopt the exhaust fan blade of this structure, because the cross section of blade is arranged to S shape (or claiming waveform), make the positive and negative of blade all possess the wind-guiding face, cooperate the clockwise and anticlockwise function of motor, can realize the two-way blowing function of exhaust fan blade, can be discharged to fresh air indoor, guarantee the effect of the pure and fresh health of indoor air, it is simple and reasonable for structure, low cost of manufacture, the using scope of Effective Raise ventilating fan, the use flexibility that improves product.
The utility model can also adopt following technical measures to solve:
Described cross section is that the vane thickness of S shape is even.
Described cross section is that the blade top of S shape extends to terminal radian and is gradually and increases.
The beneficial effects of the utility model are:
A kind of exhaust fan blade that can two-way blowing of the utility model, because the cross section of blade is arranged to S shape (or claiming waveform), make the positive and negative of blade all possess the wind-guiding face, cooperate the clockwise and anticlockwise function of motor, can realize the two-way blowing function of exhaust fan blade, can be discharged to fresh air indoor, guarantee the effect of the pure and fresh health of indoor air, it is simple and reasonable for structure, low cost of manufacture, the using scope of Effective Raise ventilating fan, the use flexibility that improves product.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1 to Figure 3, a kind of exhaust fan blade that can two-way blowing, comprise the middle interconnecting piece 1 that is connected with machine shaft, be connected with polylith blade 2 by the circumferencial direction extension on the middle interconnecting piece 1, it is characterized in that, the cross section of described every blade 2 is S shape, and cross section is that blade 2 width of S shape extend to end by the top that connects middle interconnecting piece and are gradually and increase; Adopt the exhaust fan blade of this structure, because the cross section of blade 2 is arranged to S shape (or claiming waveform), make the positive and negative of blade 2 all possess the wind-guiding face, cooperate the clockwise and anticlockwise function of motor, can realize the two-way blowing function of exhaust fan blade, can be discharged to fresh air indoor, guarantee the effect of the pure and fresh health of indoor air, it is simple and reasonable for structure, low cost of manufacture, the using scope of Effective Raise ventilating fan, the use flexibility that improves product.
More specifically embodiment as present embodiment:
Described cross section is blade 2 even thickness of S shape.
Described cross section is that blade 2 tops of S shape extend to terminal radian and are gradually and increase.
Above-described specific embodiment only is the utility model preferred embodiment, and the equivalent arrangements of such as doing according to the utility model claim all should be technology of the present utility model and contains.
Claims (3)
- One kind can two-way blowing exhaust fan blade, comprise the middle interconnecting piece that is connected with machine shaft, be connected with the polylith blade by the circumferencial direction extension on the middle interconnecting piece, it is characterized in that, the cross section of described every blade is S shape, and cross section is that the width of blade of S shape extends to end by the top that connects middle interconnecting piece and is gradually and increases.
- 2. described exhaust fan blade that can two-way blowing according to claim 1 is characterized in that described cross section is that the vane thickness of S shape is even.
- 3. described exhaust fan blade that can two-way blowing according to claim 1 is characterized in that, described cross section is that the blade top of S shape extends to terminal radian and is gradually and increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299556 CN202673777U (en) | 2012-06-26 | 2012-06-26 | Exhaust fan blades capable of blowing in two directions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220299556 CN202673777U (en) | 2012-06-26 | 2012-06-26 | Exhaust fan blades capable of blowing in two directions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673777U true CN202673777U (en) | 2013-01-16 |
Family
ID=47494684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220299556 Expired - Fee Related CN202673777U (en) | 2012-06-26 | 2012-06-26 | Exhaust fan blades capable of blowing in two directions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402023A (en) * | 2016-09-27 | 2017-02-15 | 孙新年 | Bionic inlaid composite blade |
-
2012
- 2012-06-26 CN CN 201220299556 patent/CN202673777U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402023A (en) * | 2016-09-27 | 2017-02-15 | 孙新年 | Bionic inlaid composite blade |
| CN106402023B (en) * | 2016-09-27 | 2018-10-19 | 孙新年 | A kind of bionical preparation blade |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202673777U (en) | Exhaust fan blades capable of blowing in two directions | |
| CN201763697U (en) | Subway fan | |
| CN204553335U (en) | A kind of novel axial-flow leaf | |
| CN201934380U (en) | Fan blade of ventilation fan | |
| CN203251871U (en) | Multifunctional noodle maker blower | |
| CN205714872U (en) | A kind of double-impeller axial flow fan | |
| CN205013374U (en) | Silence structure of fan blade | |
| CN102927046B (en) | Low-noise efficient impeller of axial-flow fan | |
| CN203926129U (en) | Centrifugal fan impeller | |
| CN202187926U (en) | Composite line rotor of three-blade roots blower | |
| CN202883477U (en) | Low-noise efficient axial flow fan impeller | |
| CN203308778U (en) | Wind wheel | |
| CN202360461U (en) | Blade structure of fan | |
| CN203081858U (en) | Low-noise air conditioner cooling fan | |
| CN203928313U (en) | A kind of air conditioner wind deflector and there is its air-conditioner | |
| CN201007287Y (en) | Centrifugal one-way wind wheel | |
| CN202108702U (en) | Valve seat of air compressor intake valve | |
| CN203394854U (en) | Energy-saving impeller blade for axial flow ventilator of weaving air conditioner | |
| CN203081856U (en) | Low-noise axial flow cooling fan | |
| CN202813686U (en) | Air conditioner fan blade strip structure | |
| CN202792319U (en) | Enhanced moisture absorption air conditioning system | |
| CN203463371U (en) | Draught fan provided with galvanized sheet case | |
| CN206221362U (en) | Axial flow fan vane wheel | |
| CN202326400U (en) | Cross-flow fan medium knot and cross-flow fan | |
| CN201387098Y (en) | Combined air conditioning dust collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |