CN87212551U - Adjustable electrical fan - Google Patents
Adjustable electrical fan Download PDFInfo
- Publication number
- CN87212551U CN87212551U CN 87212551 CN87212551U CN87212551U CN 87212551 U CN87212551 U CN 87212551U CN 87212551 CN87212551 CN 87212551 CN 87212551 U CN87212551 U CN 87212551U CN 87212551 U CN87212551 U CN 87212551U
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- electric fan
- slide blocks
- plane
- revoliving arm
- fan
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Abstract
The utility model discloses a multi-gear electric fan whose oscillating angle can be adjusted, characterized in that the oscillating mechanism of the electric fan adopts a lever, a cam and other driving control principles to enable the rotary movement of the eccentric axle driven the motor to enlarge the oscillating wind fanning range of the electric fan and adjust the gears of the oscillating angle after the changing of a parallelogram linkage mechanism, a revolving arm, a rocking arm, a gearwheel, etc. If the electric fan sold in the prior market adopts the utility model for retrofitting, the oscillating wind fanning range can obtain 0 to 180 DEG. If the appearance design of the electric fan is properly changed according to the principle of the utility model, the oscillating wind fanning range can obtain 0 to 360 DEG.
Description
The utility model relates to a kind of improved electric fan, the adjustable electric fan of particularly a kind of panning angle.
The adjusting of existing desk-top and floor model oscillating fan panning angle is to be handled by the turn-knob on the electric fan panel, generally is to select between 0 ° and 90 ° of second gears.When turn-knob placed 90 ° of positions, the fan motor main shaft was through a pair of worm and gear, a pair of gear reduction rear driving one eccentric shaft, and this eccentric shaft is hinged mutually with an end of connecting rod, and the other end of connecting rod is hinged mutually with stationary axle on the fan motor seat.When eccentric shaft rotates, affect fan motor to do 90 ° of motions of shaking the head by connecting rod.
Between worm gear and worm-wheel shaft, have one by the operation turn-knob on the electric fan panel by the line-controlled clutch of control, clutches engaged when turn-knob places 90 °, electric fan is done 90 ° of motions of shaking the head.Throw-out-of clutch when turn-knob places 0 °, electric fan stop to shake the head.
This kind electric fan oscillating mechanism, simple in structure, easily manufactured, cost is low, but panning angle is selected only 0 °, 90 ° of second gears, and the number of can transferring the files is few, and the pectinid maximum angle of shaking the head is 90 °, and scope is little.
Task of the present utility model is that the head-shaking fan demeanour that will enlarge electric fan is enclosed, and increases the selection shelves number of electric fan panning angle, for example is provided with 0 °, 45 °, and 90 °, 135 °, 180 ° ... Deng, can be according to the usage requirement choose reasonable.Like this, not only improve the function of use of electric fan, also improved the utilization benefit of electric fan simultaneously.
Realization of the present utility model is to use transmission principle such as lever, and rotatablely moving of the eccentric shaft that fan motor is driven is converted to reciprocally swinging by parallelogram lindage, by revoliving arm reciprocally swinging is converted to the reciprocating rotating swing; By regulating the position of sliding fulcrum on the revoliving arm, make the amplitude of oscillation of reciprocating rotating swing adjustable; By enlarging gear ratio, the adjustable reciprocating rotating pendulum angle of the amplitude of oscillation is enlarged at last.Conversion through above-mentioned multiple forms of motion makes the head-shaking fan demeanour of electric fan enclose expansion, and many grades of panning angles are adjustable.
As adopt the utility model that the desk-top and standard fan of present production is retrofited, and the head-shaking fan demeanour of electric fan is enclosed and can be reached 0 °-180 °, and many grades of panning angles are adjustable.If adopt the utility model principle that the electric fan shape-designing is done suitably to improve, the head-shaking fan demeanour is enclosed and can be reached 0 °-360 °, panning angle be similarly many grades adjustable.
Be further described below in conjunction with accompanying drawing.
Fig. 1 is that structural representation of the present utility model is always schemed.
The action schematic representation of parallelogram lindage among Fig. 2 Fig. 1.
Revoliving arm action schematic representation among Fig. 3 Fig. 1.
Fork action schematic representation among Fig. 4 Fig. 1.
Fig. 5 plughole sliding fulcrum is regulated the control mechanism schematic representation.
Torsion spring structural scheme of mechanism among Fig. 6 Fig. 5.
Fig. 7 wedging type sliding fulcrum is regulated the control mechanism schematic representation.
Consult Fig. 1, the utility model is mainly by fan motor 44, and parallelogram lindage, revoliving arm 6, sliding shoe 10, fork 13 and adjusting control mechanism etc. partly form. Support 5 in the parallelogram lindage is stationary links, is fixed on the bonnet of fan motor. Gyroaxis 9 on the revoliving arm 6 is installed on support 5, and revoliving arm 6 can rotate at support 5. Fork 13 is installed on support 5 by fixed axis 14, and the sector 35 of fork 13 is meshed with gear 15 on being fixed on motor cabinet 36, and gear 15 is again the rotation supporting part of fan motor 44, and motor cabinet 36 is installed on the fan base 45. By the adjusting control mechanism that convex axle 18 grades form, be installed in the framework 46 that is fixed on the revoliving arm 6, handled by control line 25 by electric fan panel operation turn-knob 47. Now that the divisions such as operating principle effect of each assembly is as follows.
Consult Fig. 1,2 parallelogram lindages and be by the long connecting rods 4 such as two, isometric movable rod 3 and support 5 are that stationary links forms. The eccentric shaft 1 that is driven by motor 44 links by the upper hopper chute 30 of connecting rod 3 in bearing 2 and the parallelogram lindage. The garden that represents with chain-dotted line among Fig. 2 is the rotary motion trace of eccentric shaft 1, and radius is its eccentric amount e. When eccentric shaft 1 turns to When moving, connecting rod 3 is made reciprocally swinging thereupon, and its oscillating quantity is 2e.
Consult to be fixed with on Fig. 1,3 revoliving arms 6 and short turn to 7 and gyroaxis 9, revoliving arm 6 links with the gliding groove 31 of connecting rod 3 by minor axis 7, bearing 8, gyroaxis 9 is installed on support 5, and when connecting rod 3 was made reciprocally swinging, revoliving arm 6 walked around to the center of rotating shaft 9 and does the reciprocating rotating swing thereupon. If minor axis 7 is L with the centre-to-centre spacing of gyroaxis 9, then the angle of revolution is 2sin－1(e)/(L) 。
Consult Fig. 1,4 sliding shoes 10 and 6 sliding joining of revoliving arm, be fixed with the minor axis 11 with bearing 12 on the sliding shoe 10, bearing 12 is slippery with the chute 34 of fork 13. Fork 13 is installed on the axle 14, and axle 14 is fixed on the support 5. Do reciprocating rotating when swing when sliding shoe 10 minor axises 11 walk around to rotating shaft 9 with revoliving arm 6, fork 13 threaded shafts 14 are also done the reciprocating rotating swing. But the swing of the reciprocating rotating of fork 13 is different with the angle of the reciprocating rotating swing of revoliving arm 6, and the angle of revolution of revoliving arm 6 is 2sin－1(e)/(L) definite value, and the rotary oscillation angle of fork 13 is variablees, this is that the swing displacement of minor axis 11 changes with the adjusting of centre distance because minor axis 11 is to the adjustable sliding fulcrum of gyroaxis 9 centre distances, and the reciprocating rotating angle of fork 13 is also changed thereupon.
Consult an end band chute 34 of Fig. 4 fork 13, the other end band fan tooth 35.The fan tooth 35 of fork 13 is meshed with gear 15 on being fixed on motor cabinet 36, when fork 13 is done the reciprocating rotating swing, because of gear 15 is fixed statics,, promptly force electric fan to be shaken the head so the reciprocating rotating swing is done at the center that forces fork 13 drive fan motors 44 to follow gear 15.
When the centre distance of 11 pairs of turning axlees 9 of minor axis is zero, when to be minor axis 11 with the shaft axis of turning axle 9 coincide, though this moment, revoliving arm 6 was still done the reciprocating rotating swing, because of the displacement amount of minor axis 11 is zero, so fork 13 static no rotary oscillations, the electric fan panning angle is 0 °.
Consult Fig. 4, among the figure:
A--minor axis 11 centers.
B--turning axle 9 centers.
C--axle 14 centers.
D--minor axis 7 centers.
As previously mentioned, the variation of electric fan panning angle is the centre distance by 11 pairs of turning axlees 9 of change minor axis, and promptly the AB spacing among the figure realizes.Electric fan panning angle Q
1Q
2Q
3Q
nAs follows with the relationship of AB spacing:
In the formula: the centre distance of L--minor axis 7 and turning axle 9, L=BD definite value.
The centre distance of S--turning axle 9 and fork axle 14, the S=BC definite value.
The offset of e--eccentric shaft 1, definite value.
R
1--the joint unit radius of gear 15, definite value.
R
2--the joint unit radius of fan tooth 35, definite value.
Consult Fig. 1,5,6 sliding fulcrum controlling mechanisms, mainly by slide blocks 10, tooth bar 17, compositions such as gear 16, torsion spring 20, cam 18, axle 19.Tooth bar 17 is fixed on the slide blocks 10, and mutually meshing with gear 16; Gear 16, torsion spring 20, cam 18 are installed on the axle 19.Be installed with first pin 21 on the gear 16, be installed with first pin 22 on the cam 18; Gear 16, cam 18 connects by torsion spring 20, first pin 21,22.
Be fixed on the sliding fulcrum minor axis 11 on the slide blocks 10, the displacement on revoliving arm 6 is regulated control by positioning cam 18.When the operation turn-knob 47 on the turn electric fan panel, guide line 25 affects positioning cam 18 to make clockwise direction (or counterclockwise) thereupon and rotates, when at this moment first pin 21 rotates with positioning cam 18, the left end 32 of stirring torsion spring 20 turns round to clockwise direction, this moment, torsion spring 20 was compressed, and made the right-hand member 43 of torsion spring 20 produce a clockwise direction torsion; This twisting force is in first pin 22, gear 16, and the tooth bar 17 through being meshed with gear 16 is delivered to slide blocks 10.
In like manner, when guide line 25 affected positioning cam 18 to do counterclockwise to rotate, torsion spring 20 produced torsion counterclockwise, is delivered to slide blocks 10 through gear 16, tooth bar 17.
Be subjected to the active force of torsion spring 20 transmission when slide blocks 10 after, can on revoliving arm 6, slide, need look the two connection that whether is locked.If when being in the locking coupled situation, then slide blocks 10 can not slide.If slide blocks 10 is not locked with revoliving arm 6, slide blocks 10 slides into the new position that positioning cam 18 is controlled immediately, has changed the centre distance of 11 pairs of revoliving arms 9 of minor axis, and the panning angle of electric fan is also changed thereupon.
Locking connecting structure between slide blocks 10 and the revoliving arm 6 has following two kinds:
The one, plughole connects.Consult Fig. 5, one group of positioning hole 33 is arranged on slide blocks 10, the quantity in hole depends on the adjusting shelves number of electric fan panning angle, the angle of the every grade of pectinid of shaking the head of distance control in hole.One locating stud 23 is arranged by spring 24 supportings on revoliving arm 6.The top of locating stud 23 contacts with the plane of movable rod 3; On the plane of movable rod 3, the V-shaped groove on band inclined- plane 48,49 is arranged.In the time of in working order, locating stud 23 is done the reciprocating rotating swing with revoliving arm 6, has the V-shaped groove on inclined- plane 48,49, makes reciprocally swinging with movable rod 3, and the two does relative displacement.
When locating stud 23 tops during along movable rod 3 planar slides, locating stud 23 is inserted in the positioning hole 33 of slide blocks 10, this moment slide blocks 10 locked can not slips.When locating stud 23 along the inclined-plane 48 when entering V-shaped groove, because the active force of spring 24 withdraws from it from positioning hole 33.This moment, slide blocks 10 slided into the new position that cam 18 is controlled immediately when if slide blocks 10 has contained the active force that torsion spring 20 transmission comes.When locating stud 23 along the inclined-plane 49 when from V-shaped groove, withdrawing from, locating stud 23 is depressed again and inserts in the positioning hole 33.Be plane 50 shapes at the bottom of V-shaped groove, its width is relevant with the desired non-locking time, and its effect is to make slide blocks 10 have time enough to slide into new position.
In addition, there is one group of V-shaped groove in the garden of positioning cam 18 of control slide blocks 10 on week, groove number and groove position respectively with slide blocks 10 on hole count and pitch-row corresponding.
The 2nd, wedging type connects.Consulting Fig. 7 wedging mechanism mainly is made up of skewback 37, roller 38, control pin 40, spring 39 etc.The principle of wedging is that the skewback 37 that has two inclined-planes is fixed on the revoliving arm 6, form two pairs of angles between inclined-plane 42 and slide blocks 10 planes, a roller 38 respectively is housed in angle, spring 39 pushes roller 38 in angle, the wedging power that this moment, left side roller 38 and inclined-plane 42 formed can not be slided slide blocks 10 to the right; The right roller 38 and the wedging power that inclined-plane 42 forms can not slide slide blocks 10 left.Because the wedging power of the right and left exists simultaneously, so slide blocks 10 can not can not slide to the right again left, this moment, slide blocks 10 was locked with revoliving arm 6.
The locking or the disengagement of control slide blocks 10 and revoliving arm 6 are handled by control pin 40.Control pin 40 is by spring 39 supportings, and its top contacts with the plane of movable rod 3, on the plane of movable rod 3, the V-arrangement projection on band inclined-plane 51,52 is arranged.In the time of in working order, control pin 40 is done the reciprocating rotating swing with revoliving arm 6, has the V-arrangement projection on inclined-plane 51,52, makes reciprocally swinging with movable rod 3, and the two does relative displacement.
When control pin 40 tops during along movable rod 3 planar slides, control pin 40 is pushed to by spring 41, and this moment, spring 39 was pushed roller 38 to angle, and slide blocks 10 is locked with revoliving arm 6, can not slide.When control pin 40 slides into inclined-plane 51 and is pressed down, control pin 40 is respectively thrown off roller 38 in angle, 38 pairs of slide blocks 10 planes of roller this moment do not have wedging power, this moment, slide blocks 10 slided into the new position that positioning cam 18 is controlled immediately when if slide blocks 10 has contained the active force that torsion spring 20 transmission comes.When control pin 40 along the projection inclined-plane 52 when rising, the roller 38 that former controlled cotter 40 is thrown off in the angle is multiple is again pushed to angle by spring 39, makes slide blocks 10 and revoliving arm 6 lockings.The top of V-arrangement projection is plane 53 shapes, and its width is relevant with the desired non-locking time, and its effect is to make slide blocks 10 have time enough to slide into new position.
Consulting the transmission of Fig. 1 positioning cam 18, is to select turn-knob 47 to handle by two guide lines 25 by panning angle on the electric fan panel.Guide line 25 1 ends link with the line wheel 26 that is fixed on the cam 18, and the other end links with the line wheel 26 that is fixed on the rotation axis, and positioning cam 18 is by the steel ball 27 in the fixed block 29, spring 28 location.When the operation turn-knob on the rotating panel, make positioning cam 18 rotate to respective angles by guide line 25, can change the panning angle of electric fan.
The utility model electric fan, identical during use with common electric fan, after the user starts electric fan, according to the operation turn-knob that uses on the needs rotating panel, make the indicative mark on the turn-knob point to selected panning angle gear, this moment, electric fan was promptly by the selected angle pectinid of shaking the head.
Claims (3)
1, a kind of adjustable electric fan of forming by motor, oscillating mechanism, motor cabinet, control mechanism of panning angle, it is characterized in that making in the oscillating mechanism rotatablely moving of eccentric shaft 1 to be converted to the parallelogram lindage of reciprocally swinging, wait long connecting rods 4 and isometric movable rod 3, stationary links 5 to form by two, wherein movable rod 3 has upper hopper chute 30, gliding groove 31 and has the V-shaped groove on inclined-plane 48,49 and plane 50; Make reciprocally swinging be converted to the sliding assembly of the adjustable reciprocating rotating swing of the amplitude of oscillation, by the slide blocks 10 that has sliding fulcrum minor axis 11 and one group of positioning hole 33 and have minor axis 7 and revolution is taken out 9 revoliving arm 6 and formed, the sliding fulcrum weak point is taken out the adjustable center distance of 9 of 11 pairs of turning axlees; The slide control mechanism of slide blocks 10 is made up of the positioning cam 18 that is fixed with first pin 21, torsion spring 20, the gear 16 that is fixed with first pin 22, tooth bar 17, slide blocks 10; Revoliving arm 6 is formed plugholes by locating stud 23, spring 24 and the slide blocks 10 that has one group of positioning hole 33 and is connected, and locating stud 23 inserts from positioning hole 33 and deviates to move, and is controlled by the V-shaped groove on the connecting rod 3; Make an end band chute 34 of the fork 13 of the moving angle expansion of reciprocating rotating, the other end band fan tooth 35.
11 pairs of turning axlees of sliding fulcrum minor axis on electric fan head-shaking fan angle Q and the slide blocks 10,9 OC relations are:
In the formula: the centre distance of L-minor axis 7 and turning axle 9, definite value.
The centre distance of S-turning axle 9 and fork axle 14, definite value.
The offset of e-eccentric shaft, definite value.
The joint unit radius of R1-gear 15, definite value.
The joint unit radius of R2-gear 35, definite value.
2, the adjustable electric fan of panning angle according to claim 1 is characterized in that the V-arrangement projection that has upper hopper chute 30, gliding groove 31 on the movable rod 3 of parallelogram lindage and have inclined-plane 51,52 and plane 53.
3, the adjustable electric fan of panning angle according to claim 1 is characterized in that being formed wedging type and being connected by skewback 37, roller 38, spring 39, control pin 40, the slide blocks 10 on band inclined-plane 42 on the revoliving arm 6 between revoliving arm 6 and the slide blocks 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87212551 CN87212551U (en) | 1987-12-05 | 1987-12-05 | Adjustable electrical fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87212551 CN87212551U (en) | 1987-12-05 | 1987-12-05 | Adjustable electrical fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87212551U true CN87212551U (en) | 1988-10-05 |
Family
ID=4827187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87212551 Pending CN87212551U (en) | 1987-12-05 | 1987-12-05 | Adjustable electrical fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87212551U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008006261A1 (en) * | 2006-06-23 | 2008-01-17 | Pao-Chu Wang | Sturctural improvemnet for subassembly of multifunctional fanner |
| CN105475057A (en) * | 2015-11-28 | 2016-04-13 | 江苏吟春碧芽股份有限公司 | Intelligent frost prevention swing mechanism of tea garden |
| CN107605933A (en) * | 2017-08-29 | 2018-01-19 | 广东美的环境电器制造有限公司 | Connector component, fan head swinging mechanism and fan |
| CN108869408A (en) * | 2018-06-29 | 2018-11-23 | 池州市佳山信息技术有限公司 | A kind of apparent electric fan of muting function |
| CN110274201A (en) * | 2019-04-18 | 2019-09-24 | 威海市周识工艺品有限公司 | A kind of rotatable Crystal lamp |
-
1987
- 1987-12-05 CN CN 87212551 patent/CN87212551U/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008006261A1 (en) * | 2006-06-23 | 2008-01-17 | Pao-Chu Wang | Sturctural improvemnet for subassembly of multifunctional fanner |
| CN105475057A (en) * | 2015-11-28 | 2016-04-13 | 江苏吟春碧芽股份有限公司 | Intelligent frost prevention swing mechanism of tea garden |
| CN107605933A (en) * | 2017-08-29 | 2018-01-19 | 广东美的环境电器制造有限公司 | Connector component, fan head swinging mechanism and fan |
| CN107605933B (en) * | 2017-08-29 | 2023-05-30 | 广东美的环境电器制造有限公司 | Connector assembly, fan oscillating mechanism and fan |
| CN108869408A (en) * | 2018-06-29 | 2018-11-23 | 池州市佳山信息技术有限公司 | A kind of apparent electric fan of muting function |
| CN110274201A (en) * | 2019-04-18 | 2019-09-24 | 威海市周识工艺品有限公司 | A kind of rotatable Crystal lamp |
| CN110274201B (en) * | 2019-04-18 | 2020-08-14 | 绍兴玖越智能装备有限公司 | Rotatable crystal lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |