CN209990662U - Fan with synchronously retractable fan blades - Google Patents
Fan with synchronously retractable fan blades Download PDFInfo
- Publication number
- CN209990662U CN209990662U CN201822020768.1U CN201822020768U CN209990662U CN 209990662 U CN209990662 U CN 209990662U CN 201822020768 U CN201822020768 U CN 201822020768U CN 209990662 U CN209990662 U CN 209990662U
- Authority
- CN
- China
- Prior art keywords
- fan
- fan blades
- blade
- telescopic rod
- synchronously
- 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
- 241000883990 Flabellum Species 0.000 claims abstract description 24
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/088—Ceiling fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
- F04D29/362—Blade mountings adjustable during rotation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a fan that flabellum receive and releases in step, include: the suspension mechanism is provided with a rotating motor at the lower part, the rotating shaft of the rotating motor is connected with more than three leaf forks which are uniformly distributed circumferentially around the rotating motor, and the end parts of the leaf forks are provided with a fan blade through a pivot in a rotating way; a telescopic rod is pivoted between the fan blades and the blade fork, the telescopic rod is pushed outwards to enable the fan blades to be converged or contracted inwards to enable the fan blades to be expanded, and a linkage mechanism capable of driving all the fan blades to be synchronously folded and unfolded is connected between the fan blades; the motion direction of the telescopic rod points to the axial direction of the telescopic rod, the problem that the traditional tension spring is not smooth in motion when fan blades are converged due to non-linear deformation is avoided, the linkage mechanism can drive all the fan blades to be synchronously folded and unfolded by combining the action of the telescopic rod, and the problem that the product stability is influenced due to the fact that the unfolding or converging angles of all the fan blades are inconsistent is avoided.
Description
Technical Field
The utility model relates to a ceiling fan field especially relates to a fan that flabellum receive and releases in step.
Background
The fan function generally all uses in summer, and when not using winter, because it is troublesome to dismantle, all hangs it on the roof usually, therefore the flabellum of fan piles up the dust easily, and neither is convenient for clean, occupies great space again.
For this reason, patent application No. CN201711419317.9 discloses an invisible fan, in which a gear is coaxially disposed on a rotating shaft of each fan blade assembly, the gear is engaged with a driving gear, and an elastic member is disposed between the driving gear and a rotating disc to achieve the resetting of the fan blade assembly. The invisible fan with the structure has the advantages of complex structure, various parts, complex production and installation procedures, higher production cost and inconvenient maintenance.
The invisible fan is characterized in that the reset of the fan blades is realized by adopting a tension spring connected between the rotating disc and the fan blades, two ends of the tension spring are respectively hung on the rotating disc and the fan blades, and when the fan blades are unfolded outwards, the tension member can be partially wound on the fan blades, so that the deformation of the tension spring is nonlinear deformation, and the smoothness of the return movement of the fan blades is influenced; in addition, after the fan is used for a period of time, due to the change of the elastic coefficient of the tension spring or the increase of the friction force on the rotating shaft of the fan blade, part of the fan blades cannot be synchronously retracted with other fan blades, so that part of the fan blades cannot be completely unfolded or completely converged, and the performance of the product is affected.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a fan blade can receive and release and reply more smooth-going fan of motion in step.
The utility model provides a technical scheme that its technical problem adopted is:
a fan with synchronously retractable fan blades comprises: the suspension mechanism is provided with a rotating motor at the lower part, the rotating shaft of the rotating motor is connected with more than three leaf forks which are uniformly distributed circumferentially around the rotating motor, and the end parts of the leaf forks are provided with a fan blade through a pivot in a rotating way; the fan blade is characterized in that a telescopic rod is pivoted between the fan blades and the blade fork, the telescopic rod is pushed outwards to enable the fan blades to be converged or retracted inwards to enable the fan blades to be unfolded, and a linkage mechanism capable of driving all the fan blades to be synchronously folded and unfolded is connected between the fan blades.
The linkage mechanism comprises a plurality of synchronous belt wheels or chain wheels which rotate coaxially with the fan blades, and a transmission belt which sequentially connects all the synchronous belt wheels or a chain which sequentially connects all the chain wheels.
The synchronous belt wheel or the chain wheel is rotatably arranged at the bottom of the blade fork through the pivot.
The blade fork is characterized by further comprising a rotating disc which is arranged on the blade fork in a pivoting mode, the fan blades are fixedly connected to the rotating disc, a first extending portion is arranged on the side wall of the rotating disc, a second extending portion is arranged on the side wall, far away from the first extending portion, of the blade fork, and the telescopic rod is connected with the first extending portion and the second extending portion.
The surface of rolling disc is provided with a plurality of first screw thread through-holes that run through downwards, is equipped with the second screw thread through-hole with each first screw thread through-hole one-to-one on the flabellum, and bolt assembly passes second screw thread through-hole and first screw thread through-hole in proper order and connects the flabellum on the rolling disc.
And a limiting structure used for limiting the expansion angle and the convergence angle of the fan blade is also arranged between the fan blade and the blade fork.
The limiting structure comprises two blocking pieces which are arranged on the fork and located around the pivot, the two blocking pieces are arranged on the same circumference, and a blocking part matched with the two blocking pieces for use is arranged inside the rotating disc.
The telescopic rod is a spring push rod or an air supporting rod.
The lower surface of the blade fork is upwards stamped to form a plurality of reinforcing ribs distributed along the length direction of the blade fork.
The suspension mechanism is provided with a bottom plate positioned below the fan blades, and all the fan blades are positioned right above the bottom plate in a convergent state.
The utility model has the advantages that: the fan of above structure is rotated by the flabellum on the rotation motor drive fork, utilize the telescopic link of pin joint between fork and flabellum, make stop pivoted flabellum inwards converge under the effect of telescopic link, the directional its axial of direction of motion of telescopic link, the problem of motion irregularity when avoiding traditional tension spring to lead to the flabellum to converge owing to nonlinear line's deformation, and the link gear who connects all flabellums combines the effect of telescopic link can drive all flabellums and receive and release in step, the angle nonconformity of avoiding each flabellum to expand or converge influences the stability of product.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the fan blade of FIG. 1 in an unfolded configuration;
FIG. 3 is a bottom view of the structure of FIG. 2 with the bottom plate removed;
FIG. 4 is a schematic view of a fan blade according to another embodiment of the present invention;
FIG. 5 is a bottom view of the structure of FIG. 4 with the bottom plate removed;
FIG. 6 is an exploded view of the fork, blade, telescoping rod and linkage of FIG. 3;
fig. 7 is a schematic view of the structure of the rotating disk.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, but the following description of the embodiments is illustrative and not intended to limit the present invention.
Referring to fig. 1 to 7, a fan with synchronously retractable blades includes: the suspension mechanism 1 is provided with a rotating motor 2 at the lower part of the suspension mechanism 1, more than three leaf forks 3 which are uniformly distributed circumferentially around the rotating motor 2 are connected to the rotating shaft of the rotating motor 2, and a fan blade 4 is rotatably arranged at the end part of each leaf fork 3 through a pivot; a telescopic rod 7 is pivoted between the fan blades 4 and the blade fork 3, the telescopic rod 7 is pushed outwards to enable the fan blades 4 to be converged or to be contracted inwards to enable the fan blades 4 to be expanded, and a linkage mechanism 90 capable of driving all the fan blades 4 to be synchronously folded and unfolded is connected between the fan blades 4. The fan of above structure is rotated by rotating flabellum 4 on the motor 2 drive leaf fork 3, utilize the telescopic link 7 of pin joint between leaf fork 3 and flabellum 4, make stop rotating's flabellum 4 inwards converge under the effect of telescopic link 7, the direction of motion of telescopic link 7 points to its axial, the problem of motion irregularity when avoiding traditional tension spring to lead to flabellum 4 to converge because nonlinear deformation, and link gear 90 who connects all flabellums 4 combines the effect of telescopic link 7 can drive all flabellums 4 and receive and release in step, the angle inconsistent and influence the stability of product of avoiding each flabellum 4 to expand or converge.
The link mechanism 90 includes a plurality of timing pulleys 91 or sprockets 93 that rotate coaxially with the fan blades 4, and a transmission belt 92 that sequentially couples all the timing pulleys 91 or a chain 94 that sequentially couples all the sprockets 93.
The timing pulley 91 or the sprocket 93 is provided at the bottom of the fork 3 by the pivot.
Still include through pivot sets up the rolling disc 8 on fork 3, flabellum 4 links firmly on rolling disc 8, be equipped with first extension portion 5 on the lateral wall of rolling disc 8, be equipped with second extension portion 6 on the lateral wall of keeping away from first extension portion 5 on fork 3, telescopic link 7 is connected and is stretched out between portion 5 and the second extension portion 6 first. The first protruding part 5 may be integrally formed with the rotary disc 8, and may also be mounted on a side wall of the rotary disc 8 in a bolt fastening manner, and the second protruding part 6 is fastened on a side wall of the fork 3 far from the first protruding part 5 by a bolt.
The surface of the rotating disc 8 is provided with a plurality of first thread through holes penetrating downwards, the fan blades 4 are provided with second thread through holes corresponding to the first thread through holes one to one, and the bolt assemblies sequentially penetrate through the second thread through holes and the first thread through holes to connect the fan blades 4 to the rotating disc 8.
Preferably, a limiting structure for limiting the expansion angle and the convergence angle of the fan blades 4 is further arranged between the fan blades 4 and the blade fork 3. Here, the limiting structure comprises two blocking pieces 10 arranged on the fork 3 and around the pivot, the two blocking pieces 10 are arranged on the same circumference, and a blocking part 81 matched with the two blocking pieces 10 is arranged inside the rotating disc 8. In this embodiment, the surface of the rotating disk 8 is stamped downward to form the blocking portion 81, and the moving range of the blocking portion 81 is the circular arc area formed between the two blocking pieces 10.
Preferably, the telescopic rod 7 is a spring push rod or a gas strut. Here, the extension rod 7 is a spring push rod. When the fan rotates, flabellum 4 outwards expandes under the effect of centrifugal force, and rolling disc 8 anticlockwise rotation, at this moment, telescopic link 7 compresses along its axial, and when the fan stall, telescopic link 7 motion of replying orders about rolling disc 8 clockwise rotation to drive flabellum 4 convergence.
The lower surface of the blade fork 3 is upwards stamped to form a plurality of reinforcing ribs distributed along the length direction of the blade fork 3, so that the mechanical strength of the blade fork 3 is improved.
The suspension mechanism 1 is provided with a bottom plate 11 positioned below the fan blades 4, all the fan blades 4 are positioned right above the bottom plate 11 in a convergent state, and the bottom plate 11 mainly has a certain dustproof effect.
The above description specifically describes the preferred embodiment of the present invention, but of course, the present invention can also adopt different forms from the above embodiments, and equivalent changes or corresponding modifications made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.
Claims (10)
1. A fan with synchronously retractable fan blades comprises:
the suspension mechanism is provided with a rotating motor at the lower part, the rotating shaft of the rotating motor is connected with more than three leaf forks which are uniformly distributed circumferentially around the rotating motor, and the end parts of the leaf forks are provided with a fan blade through a pivot in a rotating way;
it is characterized in that the preparation method is characterized in that,
the fan blade is characterized in that a telescopic rod is pivoted between the fan blades and the blade fork, the telescopic rod is pushed outwards to enable the fan blades to be converged or retracted inwards to enable the fan blades to be unfolded, and a linkage mechanism capable of driving all the fan blades to be synchronously folded and unfolded is connected between the fan blades.
2. The fan with synchronously retractable fan blades as claimed in claim 1, wherein:
the linkage mechanism comprises a plurality of synchronous belt wheels or chain wheels which rotate coaxially with the fan blades, and a transmission belt which sequentially connects all the synchronous belt wheels or a chain which sequentially connects all the chain wheels.
3. The fan with synchronously retractable fan blades as claimed in claim 2, wherein:
the synchronous belt wheel or the chain wheel is rotatably arranged at the bottom of the blade fork through the pivot.
4. The fan with synchronously retractable fan blades as claimed in claim 2, wherein:
the blade fork is characterized by further comprising a rotating disc which is arranged on the blade fork in a pivoting mode, the fan blades are fixedly connected to the rotating disc, a first extending portion is arranged on the side wall of the rotating disc, a second extending portion is arranged on the side wall, far away from the first extending portion, of the blade fork, and the telescopic rod is connected with the first extending portion and the second extending portion.
5. The fan with synchronously retractable fan blades as claimed in claim 4, wherein:
the surface of rolling disc is provided with a plurality of first screw thread through-holes that run through downwards, is equipped with the second screw thread through-hole with each first screw thread through-hole one-to-one on the flabellum, and bolt assembly passes second screw thread through-hole and first screw thread through-hole in proper order and connects the flabellum on the rolling disc.
6. The fan with synchronously retractable fan blades as claimed in claim 4, wherein:
and a limiting structure used for limiting the expansion angle and the convergence angle of the fan blade is also arranged between the fan blade and the blade fork.
7. The fan with synchronously retractable fan blades as claimed in claim 6, wherein:
the limiting structure comprises two blocking pieces which are arranged on the fork and located around the pivot, the two blocking pieces are arranged on the same circumference, and a blocking part matched with the two blocking pieces for use is arranged inside the rotating disc.
8. The fan with synchronously retractable fan blades as claimed in claim 1, wherein:
the telescopic rod is a spring push rod or an air supporting rod.
9. The fan with synchronously retractable fan blades as claimed in claim 1, wherein:
the lower surface of the blade fork is upwards stamped to form a plurality of reinforcing ribs distributed along the length direction of the blade fork.
10. The fan with synchronously retractable fan blades as claimed in claim 1, wherein:
the suspension mechanism is provided with a bottom plate positioned below the fan blades, and all the fan blades are positioned right above the bottom plate in a convergent state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822020768.1U CN209990662U (en) | 2018-12-03 | 2018-12-03 | Fan with synchronously retractable fan blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822020768.1U CN209990662U (en) | 2018-12-03 | 2018-12-03 | Fan with synchronously retractable fan blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209990662U true CN209990662U (en) | 2020-01-24 |
Family
ID=69287051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822020768.1U Expired - Fee Related CN209990662U (en) | 2018-12-03 | 2018-12-03 | Fan with synchronously retractable fan blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209990662U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443560A (en) * | 2020-05-06 | 2020-07-24 | 杭州可天信息科技有限公司 | Projector heat dissipation placement device based on centrifugal transmission |
| CN111810440A (en) * | 2020-07-03 | 2020-10-23 | 陈少同 | Centrifugal water pump |
-
2018
- 2018-12-03 CN CN201822020768.1U patent/CN209990662U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111443560A (en) * | 2020-05-06 | 2020-07-24 | 杭州可天信息科技有限公司 | Projector heat dissipation placement device based on centrifugal transmission |
| CN111810440A (en) * | 2020-07-03 | 2020-10-23 | 陈少同 | Centrifugal water pump |
| CN111810440B (en) * | 2020-07-03 | 2021-08-10 | 上海连成集团苏州股份有限公司 | Centrifugal water pump |
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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: 20200124 Termination date: 20211203 |