CN206860514U - A kind of cylindric unpowered type blower fan - Google Patents
A kind of cylindric unpowered type blower fan Download PDFInfo
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- CN206860514U CN206860514U CN201720807278.9U CN201720807278U CN206860514U CN 206860514 U CN206860514 U CN 206860514U CN 201720807278 U CN201720807278 U CN 201720807278U CN 206860514 U CN206860514 U CN 206860514U
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- air duct
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Abstract
The utility model discloses a kind of cylindric unpowered type blower fan, for indoor air-changing, exhaust, including air duct, the air draft mechanism inside air duct, the fan blade and limit base being hinged with air duct outer wall；The limit base that scope is opened for limiting fan blade is located at the lee face of fan blade and is fixed on air duct outer wall.The beneficial effects of the utility model are：The utility model is provided with rain visor, can effectively prevent rainwater from entering blower interior, extends the service life of blower fan；The utility model is provided with fan blade and limit base, effectively realizes unpowered drive；The utility model fan blade is with air duct using be hinged connected mode so that fan blade wind-engaging active area is big so that blower fan also being capable of normal use under gentle breeze state；The simple and practical property of the utility model is strong.
Description
Technical field
Ventilating system technical field is the utility model is related to, is a kind of cylindric unpowered type blower fan specifically.
Background technology
In the buildings such as industrial premises, through carrying out exhaust ventilation frequently with no-power air blower.No-power air blower, it is not necessary to
Artificial to provide power, its power is mainly derived from the thermal current of indoor rising and outdoor natural wind, by the whirlpool for promoting blower fan
Main frame rotation is taken turns, to reach the effect of ventilation.Compared with driven fan, no-power air blower has that cost is low, noiseless, nothing
Energy consumption, advantages of environment protection, its application are very extensive.
But it is existing it is unpowered used in the state of gentle breeze, the effect of exhaust is extremely undesirable, it is impossible to effectively reaches
The requirement being vented under being acted in gentle breeze.
Utility model content
The purpose of this utility model is to provide a kind of cylindric unpowered type blower fan, simple in construction, practical, can
Under micro- wind regime, effectively it is operated.
The utility model is achieved through the following technical solutions：A kind of cylindric unpowered type blower fan, for indoor air-changing, row
Gas, including air duct, the air draft mechanism inside air duct, the fan blade and limit base being hinged with air duct outer wall；For limiting
The limit base that fan blade opens scope is located at the lee face of fan blade and is fixed on air duct outer wall.
Fan blade drives air duct rotated around its axis under wind action so that the air draft inside air duct
Mechanism is operated, so as to reach the purpose of exhaust, ventilation.
The scope that limit base effectively opens for blower fan limits, and effectively avoids under wind active force, fan blade quilt
Wind is blown, and is opened on a large scale around pin joint, influences using effect.
Further, in order to preferably realize the utility model, the air draft mechanism is included with being fixedly connected inside air duct
And the first exhaust blade coaxial with air duct axis, with being fixedly connected inside air duct and the rectification leaf coaxial with air duct axis
Piece, the connecting shaft for connecting first exhaust blade and straightener(stator) blade and installed in connecting shaft away from first exhaust blade side
Main exhaust blade, the first exhaust blade, straightener(stator) blade, main exhaust blade are coaxial and are sequentially arranged in connecting shaft.
Fan blade drives air duct rotated around air duct axis under wind action, installed in air duct inside and and wind
Cylinder medial surface is fixedly connected with first exhaust blade and straightener(stator) blade is rotated, so as to drive the main row for being connected axis connection
Gas blade is rotated, and reaches the purpose of exhaust.
Further, in order to preferably realize the utility model, the quantity of the fan blade and limit base is multiple and equal
Even is arranged on air duct outer wall, and the fan blade and limit base, which correspond, to be set.It is effective to cause active force of the wind to fan blade
It is bigger, uniform force.
Further, in order to preferably realize the utility model, bearing is provided between the straightener(stator) blade and connecting shaft,
The straightener(stator) blade is by bearing with being connected axis connection.
Further, in order to preferably realize the utility model, the air duct is set close to the side of first exhaust blade
Rain visor, is provided with support column between the rain visor and air duct, the rain visor is connected by support column with air duct.
It is further, described that assembling seat is additionally provided with air duct outer wall in order to preferably realize the utility model,
The assembling seat is in annular, the assembling cover for seat is connected on air duct.
Further, in order to preferably realize the utility model, the fan blade is in arc-shaped structure, including convex surface and recessed
Face.Concave surface can effectively increase wind action face as windward side.
The utility model compared with prior art, has advantages below and beneficial effect：
（1）The utility model is provided with rain visor, can effectively prevent rainwater from entering blower interior, extend making for blower fan
Use the life-span；
（2）The utility model is provided with fan blade and limit base, effectively realizes unpowered drive；
（3）The utility model fan blade is with air duct using be hinged connected mode so that fan blade wind-engaging active area is big so that
Blower fan also being capable of normal use under gentle breeze state；
（4）The simple and practical property of the utility model is strong.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model；
Fig. 2 is stereogram of the present utility model；
Fig. 3 is the enlarged drawing at A in Fig. 1；
Wherein 1- rain visors, 2- support columns, 3- fan blades, 4- air ducts, 5- first exhaust blades, 6- connecting shafts, 7- rectification leaves
Piece, 8- bearing mounting bases, 9- bearings, 10- assembling seats, 11- limit bases, 12- main exhaust blades.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise " are based on orientation shown in the drawings or position relationship, merely to just
In description the utility model and simplified description, rather than indicate or imply that signified device or element must be with specifically square
Position, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the utility model.
The utility model is described in further detail with reference to embodiment, but embodiment of the present utility model is not
It is limited to this.
Embodiment 1：
The utility model is achieved through the following technical solutions, as shown in Figure 1, Figure 2, Figure 3 shows, a kind of cylindric unpowered type wind
Machine, for indoor air-changing, exhaust, including air duct 4, the air draft mechanism inside air duct 4, the wind being hinged with the outer wall of air duct 4
Leaf 3 and limit base 11；The limit base 11 that scope is opened for limiting fan blade 3 is located at the lee face of fan blade 3 and is fixed on air duct 4
Outer wall.
A kind of cylindric unpowered type blower fan, for indoor air-changing, exhaust, including air duct 4, inside air duct 4
Air draft mechanism and the driving device on the outer wall of air duct 4 and for driving the rotation of air duct 4；The driving device includes wind
Leaf 3 and the limit base 11 that scope is opened installed in the outer wall of air duct 4 and for limiting fan blade 3, the fan blade 3 and the outer wall of air duct 4
It is be hinged.
Preferably, fan blade 3 is hinged with air duct 4 using hinge, and the fan blade 3 is in circular arc, including close to air duct 4
Concave surface and the convex surface away from air duct 4.The concave surface is windward side, and the convex surface is lee face.The limit base 11 and pin joint
Contact.Under wind action convex surface by away from air duct 4 a lateral movement, when convex surface contacts with limit base 11, so as to realize
Spacing effect.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 2：
The present embodiment does further optimization on the basis of above-described embodiment, as shown in figure 1, the air draft mechanism include with
Be fixedly connected inside air duct 4 and the first exhaust blade 5 coaxial with the axis of air duct 4, with being fixedly connected inside air duct 4 and and wind
The coaxial straightener(stator) blade 7 in 4 axis of cylinder, the connecting shaft 6 for connecting first exhaust blade 5 and straightener(stator) blade 7 and it is arranged on
Main exhaust blade 12 of the connecting shaft 6 away from the side of first exhaust blade 5, the first exhaust blade 5, straightener(stator) blade 7, main exhaust
Blade 12 is coaxial and is sequentially arranged in connecting shaft 6.
It should be noted that by above-mentioned improvement, fan blade 3 drives air duct 4 to carry out around the axis of air duct 4 under wind action
Rotated, inside air duct 4 and be fixedly connected with first exhaust blade 5 with the medial surface of air duct 4 and straightener(stator) blade 7 is carried out
Rotation, so as to which the main exhaust blade 12 for driving connected axle 6 to connect be rotated, reach the purpose of exhaust.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 3：
The present embodiment does further optimization on the basis of above-described embodiment, and as shown in Figure 1, Figure 3, the air duct 4 is close
The side of first exhaust blade 5 sets rain visor 1, and support column 2, the rain visor are provided between the rain visor 1 and air duct 4
1 is connected by support column 2 with air duct 4.
It should be noted that by above-mentioned improvement, support column 2, the support column 2 are provided between rain visor 1 and air duct 4
Quantity to be multiple, be uniformly arranged in air duct 4 close to the side of first exhaust blade 5.
Preferably, the quantity of support column 2 is 4-6, can effectively ensure that exhaust ventilation.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 4：
The present embodiment does further optimization on the basis of above-described embodiment, as shown in figure 1, the straightener(stator) blade 7 is with connecting
Bearing 9 is provided between spindle 6, the straightener(stator) blade 7 is connected by bearing 9 with connecting shaft 6.
It should be noted that by above-mentioned improvement, bearing mounting base 8 is provided between the straightener(stator) blade 7 and connecting shaft 6
And the bearing 9 being used cooperatively with bearing 9, the straightener(stator) blade 7 are connected by bearing 9 with connecting shaft 6.
Preferably, it is also equipped with bearing 9 between the first exhaust blade 5 and connecting shaft 6.So that rotate more smooth
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 5：
The present embodiment does further optimization on the basis of above-described embodiment, as shown in Figure 1 and Figure 2, the fan blade 3 and limit
The quantity of position seat 11 is multiple and is uniformly arranged on the outer wall of air duct 4, and the fan blade 3 and limit base 11 are corresponded and set
Put.
It should be noted that pass through above-mentioned improvement, the rectangular triangular prism shape in cross section of the limit base 11, its inclined-plane
Outer wall away from air duct 4.Under wind action, due to the effect of limit base 11, the opening angle of fan blade 3 at most can only with air duct 4
In 90 degree of angles, blowing for wind-engaging and drive air duct 4 to rotate, air duct 4 drives first exhaust blade 5 to rotate so as to pass through connecting shaft
6 and drive main exhaust leaf to carry out rotation exhaust.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 6：
The present embodiment does further optimization on the basis of above-described embodiment, as shown in figure 1, described on the outer wall of air duct 4
Assembling seat 10 is additionally provided with, the assembling seat 10 is in annular.
It should be noted that by above-mentioned improvement, effectively blower fan can be fixed for truncated cone-shaped mounting seat.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
Embodiment 7：
As shown in Figure 1, Figure 2, Figure 3 shows, the present embodiment is the most preferred embodiment for originally making utility model, a kind of cylindric unpowered
Formula blower fan, for indoor air-changing, exhaust, including air duct 4, the air draft mechanism inside air duct 4, it is hinged with the outer wall of air duct 4
Fan blade 3 and limit base 11；The limit base 11 that scope is opened for limiting fan blade 3 is located at the lee face of fan blade 3 and is fixed on
The outer wall of air duct 4.Fan blade 3 drives air duct 4 rotated around its axis under wind action so that inside air duct 4
Air draft mechanism be operated, so as to reach exhaust, ventilation purpose.The scope that limit base 11 effectively opens for blower fan is entered
Row limitation, is effectively avoided under wind active force, and fan blade 3 is blown by wind, is opened on a large scale around pin joint, is influenceed using effect
Fruit.The air draft mechanism includes and is fixedly connected inside air duct 4 and the first exhaust blade 5 and wind coaxial with the axis of air duct 4
Cylinder 4 inside be fixedly connected and the straightener(stator) blade 7 coaxial with the axis of air duct 4, for being connected first exhaust blade 5 and straightener(stator) blade
7 connecting shaft 6 and installed in main exhaust blade 12 of the connecting shaft 6 away from the side of first exhaust blade 5, the first exhaust leaf
Piece 5, straightener(stator) blade 7, main exhaust blade 12 are coaxial and are sequentially arranged in connecting shaft 6.Fan blade 3 drives air duct under wind action
4 rotated around the axis of air duct 4, installed in the inside of air duct 4 and are fixedly connected with first exhaust blade with the medial surface of air duct 4
5 and straightener(stator) blade 7 rotated, be connected the main exhaust blade 12 that connects of axle 6 so as to drive and rotated, reach exhaust
Purpose.The quantity of the fan blade 3 and limit base 11 is multiple and is uniformly arranged on the outer wall of air duct 4, the He of fan blade 3
Limit base 11, which corresponds, to be set.Effectively make it that wind is bigger to the active force of fan blade 3, uniform force.The straightener(stator) blade 7 with
Bearing 9 is provided between connecting shaft 6, the straightener(stator) blade 7 is connected by bearing 9 with connecting shaft 6.The air duct 4 is close to first
The side of exhausting blade 5 sets rain visor 1, and support column 2 is provided between the rain visor 1 and air duct 4, and the rain visor 1 is logical
Support column 2 is crossed to be connected with air duct 4.Described that assembling seat 10 is additionally provided with the outer wall of air duct 4, the assembling seat 10 is in
Annular, the assembling seat 10 is socketed on air duct 4.
Preferably, the first exhaust blade 5, straightener(stator) blade 7, the quantity of main exhaust blade 2 are multiple, uniform cloth
Put inside air duct 4.
Preferably, the fan blade（3）In arc-shaped structure, including convex surface and concave surface.
The other parts of the present embodiment are same as the previously described embodiments, therefore repeat no more.
It is described above, only it is preferred embodiment of the present utility model, any formal limit is not done to the utility model
System, every any simple modification made according to the technical essence of the utility model to above example, equivalent variations, each falls within
Within the scope of protection of the utility model.
Claims (7)
- A kind of 1. cylindric unpowered type blower fan, for indoor air-changing, exhaust, it is characterised in that：Including air duct（4）, be arranged on Air duct（4）Internal air draft mechanism and air duct（4）The be hinged fan blade of outer wall（3）And limit base（11）；For limiting fan blade （3）Open the limit base of scope（11）Positioned at fan blade（3）Lee face and be fixed on air duct（4）Outer wall.
- A kind of 2. cylindric unpowered type blower fan according to claim 1, it is characterised in that：The air draft mechanism includes and wind Cylinder（4）Inside is fixedly connected and and air duct（4）The coaxial first exhaust blade in axis（5）With air duct（4）Inside is fixedly connected And and air duct（4）The coaxial straightener(stator) blade in axis（7）, for connecting first exhaust blade（5）And straightener(stator) blade（7）Connection Axle（6）And installed in connecting shaft（6）Away from first exhaust blade（5）The main exhaust blade of side（12）, the first exhaust Blade（5）, straightener(stator) blade（7）, main exhaust blade（12）It is coaxial and be sequentially arranged at connecting shaft（6）On.
- A kind of 3. cylindric unpowered type blower fan according to claim 2, it is characterised in that：The air duct（4）Close to first Exhausting blade（5）Side set rain visor（1）, the rain visor（1）With air duct（4）Between be provided with support column（2）, it is described Rain visor（1）Pass through support column（2）With air duct（4）Connection.
- A kind of 4. cylindric unpowered type blower fan according to claim 2, it is characterised in that：The straightener(stator) blade（7）With connecting Spindle（6）Between be provided with bearing（9）, the straightener(stator) blade（7）Pass through bearing（9）With connecting shaft（6）Connection.
- A kind of 5. cylindric unpowered type blower fan according to claim 1, it is characterised in that：The fan blade（3）And limit base （11）Quantity be multiple and be uniformly arranged in air duct（4）On outer wall, the fan blade（3）And limit base（11）Correspond Set.
- 6. according to a kind of any one of claim 1-5 cylindric unpowered type blower fans, it is characterised in that：It is described in air duct （4）Assembling seat is additionally provided with outer wall（10）, the assembling seat（10）In annular.
- A kind of 7. cylindric unpowered type blower fan according to claim 6, it is characterised in that：The fan blade（3）In circular arc Structure, including the convex surface as lee face and the concave surface as windward side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720807278.9U CN206860514U (en) | 2017-07-05 | 2017-07-05 | A kind of cylindric unpowered type blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720807278.9U CN206860514U (en) | 2017-07-05 | 2017-07-05 | A kind of cylindric unpowered type blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860514U true CN206860514U (en) | 2018-01-09 |
Family
ID=60830045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720807278.9U Expired - Fee Related CN206860514U (en) | 2017-07-05 | 2017-07-05 | A kind of cylindric unpowered type blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372516A (en) * | 2018-12-04 | 2019-02-22 | 河南省尧栾西高速公路建设有限公司 | Device for liaison tunnel vertical shaft air draft |
-
2017
- 2017-07-05 CN CN201720807278.9U patent/CN206860514U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372516A (en) * | 2018-12-04 | 2019-02-22 | 河南省尧栾西高速公路建设有限公司 | Device for liaison tunnel vertical shaft air draft |
| CN109372516B (en) * | 2018-12-04 | 2023-12-22 | 河南省尧栾西高速公路建设有限公司 | Device for assisting in exhausting air of tunnel shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20210705 |
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| CF01 | Termination of patent right due to non-payment of annual fee |