CN216111451U - Fan blade - Google Patents
Fan blade Download PDFInfo
- Publication number
- CN216111451U CN216111451U CN202120129867.2U CN202120129867U CN216111451U CN 216111451 U CN216111451 U CN 216111451U CN 202120129867 U CN202120129867 U CN 202120129867U CN 216111451 U CN216111451 U CN 216111451U
- Authority
- CN
- China
- Prior art keywords
- wall
- blade
- base body
- fan blade
- sleeve
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 230000006978 adaptation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Abstract
The utility model discloses a fan blade, which relates to the technical field of fans and comprises a base body and a plurality of blades arranged around the peripheral surface of the base body, wherein the base body is provided with a sleeve, and a positioning block is fixed on the inner wall of the sleeve. The outer wall of pivot is provided with the recess of adaptation in the locating piece, and the pivot is pegged graft in the sleeve pipe, and the locating piece is embedded into the recess, is fixed in the sleeve pipe with pivot circumference, and the outer wall of locating piece contacts with the inner wall of recess, and area of contact is big, improves the fixity between base member and the pivot, safe and reliable.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a fan blade.
Background
The fan blades, the table fan and the ceiling fan are driven by a motor to rotate so as to generate wind. The blades of a ceiling fan are generally 3, the blades of a desk fan are generally 5, and the cross section of the common fan blades is generally curved. The width and angle of the fan blades are designed according to the load power of the motor. If the rotating speed is only determined without considering the power of the motor, the angle of the fan blade is more important, and if the angle of the fan blade is the same, the wind is larger with the fan blade width. And the design and manufacture of the fan blades are regularly and symmetrically structured, so that a uniform and stable wind source can be generated. Common flabellum fans include three-flabellum fans, four-flabellum fans, five-flabellum fans, double-layer fans and the like.
The existing fan blade structure generally comprises a base body and a plurality of blades, wherein the blades are uniformly arranged on the side wall of the base body in the circumferential direction, and when the base body is stressed to rotate, the blades are driven to rotate along the axis of the base body to generate air flow. When the rotating shaft drives the base body to rotate, the base body is provided with the sleeve, the rotating shaft is provided with the threaded hole along the radial direction, and after the rotating shaft is inserted into the sleeve, the side wall of the sleeve is in threaded connection with the bolt inserted into the threaded hole, so that the rotating shaft is fixedly connected with the sleeve.
However, in the course of practical use, there are the following disadvantages: when the high-speed rotation, power is transmitted between the rotating shaft and the base body through the bolt, and the bolt is easy to loosen relative to the sleeve after being stressed, so that the fixing effect between the base body and the rotating shaft is influenced.
SUMMERY OF THE UTILITY MODEL
According to the defects of the prior art, the utility model aims to provide the fan blade, which improves the fixity between the base body and the rotating shaft and is safe and reliable.
The technical purpose of the utility model is realized by the following technical scheme:
the fan blade comprises a base body and a plurality of blades arranged around the peripheral surface of the base body, wherein the base body is provided with a sleeve, and a positioning block is fixed on the inner wall of the sleeve.
Through adopting above-mentioned technical scheme, the outer wall of pivot is provided with the recess of adaptation in the locating piece, and the pivot is pegged graft in the sleeve pipe, and the locating piece of cover intraductal wall is embedded into the recess of pivot outer wall, is fixed in the sleeve pipe with pivot circumference, and the outer wall of locating piece and the inner wall contact of recess, area of contact is big, improves the fixity between base member and the pivot, safe and reliable. When the rotating shaft rotates, the sleeve and the base body are driven to rotate, and the blades are driven to rotate.
Furthermore, the sleeve comprises a pipe body fixed on the base body and a bushing fixed on the inner wall of the pipe body, and the positioning block is integrally arranged on the inner wall of the bushing. The bush plays the effect of sealed and wearing and tearing protection between the inner wall of body and the outer wall of pivot.
Further, the outer wall of bush is equipped with spacing arch, the inner wall of body is equipped with the confession spacing groove of spacing protruding embedding. The spacing arch of bush outer wall imbeds the spacing inslot of body inner wall for the bush is fixed for body circumference, and is reliable and stable.
Furthermore, the positioning blocks are circumferentially and uniformly distributed on the inner wall of the bushing; spacing protruding circumference evenly distributed in the outer wall of bush, spacing groove circumference evenly distributed in the inner wall of body. The circumference evenly distributed for the atress is even, and stability is high.
Furthermore, the blades are rotatably arranged on the peripheral surface of the base body, and a rotation locking mechanism is arranged between the blades and the base body. The blade rotates, can be according to actual conditions nimble angle of adjusting the blade, makes its application range wider. After the blade angle is determined, the blade is locked by a rotation locking mechanism.
Further, the rotation locking mechanism comprises a rotating rod and a mounting nut, the rotating rod is fixed on the blades and penetrates through the base body, and the mounting nut is in threaded connection with the rotating rod. The dwang makes normal running fit between blade and the base member as rotation center, and mounting nut with dwang screw-thread fit then locks convenient and fast after the regulation of blade and base member rotation is accomplished.
Furthermore, one end of the blade, which faces the base body, is provided with an elastic strip. The arrangement of the elastic strip reduces the gap between the blade and the base, reduces the noise generated by the gap when the fan blade is used, reduces the abrasion between the blade and the base during adjustment and prolongs the service life.
Furthermore, the elastic strip is made of rubber. The rubber has low cost and good compressibility and is very suitable for manufacturing the elastic strip.
In summary, the utility model has the following beneficial technical effects:
1. through the setting of sleeve pipe and locating piece, the outer wall of pivot is provided with the recess of adaptation in the locating piece, and the pivot is pegged graft in the sleeve pipe, and the locating piece is embedded into the recess, is fixed in the sleeve pipe with pivot circumference, and the outer wall of locating piece contacts with the inner wall of recess, and area of contact is big, improves the fixity between base member and the pivot, safe and reliable.
2. Through the setting of body, bush, spacing arch and spacing groove, the bush plays sealed and wearing and tearing protection's effect between the inner wall of body and the outer wall of pivot. The spacing arch of bush outer wall imbeds the spacing inslot of body inner wall for the bush is fixed for body circumference, and is reliable and stable.
3. Through the setting of rotating locking mechanical system, the blade rotates, can be according to actual conditions nimble angle of adjusting the blade, make its application range wider. After the blade angle is determined, the blade is locked by a rotation locking mechanism.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the explosive structure of the present invention.
In the figure, 1, a substrate; 2. a blade; 21. an elastic strip; 3. a sleeve; 31. a pipe body; 311. a limiting groove; 32. a bushing; 321. a limiting bulge; 322. positioning blocks; 4. a rotation locking mechanism; 41. rotating the rod; 42. and (6) mounting the nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-2, the present invention discloses a fan blade, which comprises a base 1 and a plurality of blades 2 uniformly arranged around the outer circumference of the base 1. The base body 1 is driven to rotate through the rotating shaft, and the blades 2 are driven to rotate.
The blade 2 is rotatably arranged on the outer peripheral surface of the base body 1, and a rotation locking mechanism 4 is arranged between the blade 2 and the base body 1. Rotation locking mechanical system 4 includes dwang 41 and mounting nut 42, and dwang 41 is fixed in blade 2, and dwang 41 wears to establish and extends into base member 1 in, mounting nut 42 and dwang 41 threaded connection, and mounting nut 42 contradicts with the lateral wall of base member 1. One end of the blade 2 facing the base 1 is provided with an elastic strip 21, and the elastic strip 21 is made of rubber.
The blade 2 rotates, and the angle of the blade 2 can be flexibly adjusted according to actual conditions, so that the application range of the blade is wider. After the angle of the blade 2 is determined, the blade is locked by the rotation lock mechanism 4. The rotating rod 41 serves as a rotating center to enable the blade 2 to be in running fit with the base body 1, and the mounting nut 42 in threaded fit with the rotating rod 41 is locked after the rotation adjustment of the blade 2 and the base body 1 is completed, so that the operation is convenient and fast. The arrangement of the elastic strip 21 reduces the gap between the vane 2 and the base, reduces the noise generated by the gap when the vane is in use, reduces the abrasion between the vane 2 and the base during adjustment, and prolongs the service life. The rubber has low cost and good compressibility, and is very suitable for manufacturing the elastic strip 21.
The base member 1 internal fixation is equipped with sleeve pipe 3, and sleeve pipe 3 includes body 31 and bush 32, and body 31 fixed mounting is in base member 1, and bush 32 is fixed in body 31 inner wall, and the outer wall of bush 32 is equipped with spacing arch 321, and the inner wall of body 31 is equipped with the spacing groove 311 that supplies the embedding of spacing arch 321. The limiting protrusion 321 is embedded in the limiting groove 311, so that the bushing 32 is circumferentially fixed relative to the pipe body 31, and is stable and reliable. Spacing arch 321 circumference evenly distributed in the outer wall of bush 32, spacing groove 311 circumference evenly distributed in the inner wall of body 31. The inner wall of bush 32 is integrative to be fixed and is equipped with locating piece 322, and locating piece 322 circumference evenly distributed is in the inner wall of bush 32.
The implementation principle of the above embodiment is as follows: dwang 41 makes normal running fit between blade 2 and the base member 1 as rotation center, and blade 2 rotates, can be according to actual conditions nimble angle of adjusting blade 2, makes its application range wider. After the angle of the blade 2 is determined, the blade is locked by the rotary locking mechanism 4, and the mounting nut 42 is abutted against the side wall of the base body 1 for locking, so that the blade is convenient and quick. The outer wall of pivot is provided with the recess of adaptation in locating piece 322, and the pivot is pegged graft in sleeve pipe 3, and locating piece 322 is embedded into the recess, is fixed in sleeve pipe 3 with pivot circumference, and the outer wall of locating piece 322 contacts with the inner wall of recess, and area of contact is big, improves the fixity between base member 1 and the pivot, safe and reliable. When the rotating shaft rotates, the sleeve 3 and the base body 1 are driven to rotate, and therefore the blades 2 are driven to rotate.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (7)
1. The utility model provides a fan blade, includes base member (1) and around a plurality of blade (2) that base member (1) outer peripheral face set up, its characterized in that: the base body (1) is provided with a sleeve (3), a positioning block (322) is fixed on the inner wall of the sleeve (3), and the blades (2) are rotatably arranged on the outer peripheral surface of the base body (1) and are provided with a rotary locking mechanism (4) between the base body (1).
2. The fan blade of claim 1, wherein: the sleeve (3) comprises a pipe body (31) fixed on the base body (1) and a lining (32) fixed on the inner wall of the pipe body (31), and the positioning block (322) is integrally arranged on the inner wall of the lining (32).
3. The fan blade of claim 2, wherein: the outer wall of bush (32) is equipped with spacing arch (321), the inner wall of body (31) is equipped with the confession spacing groove (311) that spacing arch (321) inlayed.
4. A fan blade according to claim 3, wherein: the positioning blocks (322) are circumferentially and uniformly distributed on the inner wall of the bushing (32); spacing arch (321) circumference evenly distributed in the outer wall of bush (32), spacing groove (311) circumference evenly distributed in the inner wall of body (31).
5. The fan blade of claim 1, further comprising: rotation locking mechanical system (4) are including dwang (41) and mounting nut (42), dwang (41) are fixed in blade (2) are worn to locate base member (1), mounting nut (42) with dwang (41) threaded connection.
6. The fan blade of claim 1, further comprising: one end of the blade (2) facing the base body (1) is provided with an elastic strip (21).
7. The fan blade of claim 6, further comprising: the elastic strip (21) is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120129867.2U CN216111451U (en) | 2021-01-18 | 2021-01-18 | Fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120129867.2U CN216111451U (en) | 2021-01-18 | 2021-01-18 | Fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216111451U true CN216111451U (en) | 2022-03-22 |
Family
ID=80686221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120129867.2U Expired - Fee Related CN216111451U (en) | 2021-01-18 | 2021-01-18 | Fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216111451U (en) |
-
2021
- 2021-01-18 CN CN202120129867.2U patent/CN216111451U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220322 |