CN2403925Y - Oscillation angle variable mechanism for fan - Google Patents
Oscillation angle variable mechanism for fan Download PDFInfo
- Publication number
- CN2403925Y CN2403925Y CN 00222216 CN00222216U CN2403925Y CN 2403925 Y CN2403925 Y CN 2403925Y CN 00222216 CN00222216 CN 00222216 CN 00222216 U CN00222216 U CN 00222216U CN 2403925 Y CN2403925 Y CN 2403925Y
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- China
- Prior art keywords
- shifting block
- groove
- electric fan
- fan
- motor cabinet
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- Expired - Fee Related
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Abstract
The utility model relates to an oscillation angle variable mechanism for an electric fan. The utility model is characterized in that an existing swing arm is provided with a fan-shaped groove; a motor base is provided with a locking mechanism for an extracting block position. Therefore, an oscillation angle of an existing electric fan is changed into a plurality of steps or even no step from two steps.
Description
The utility model relates to a kind of electric fan yaw angle changeable mechanism.
A kind of oscillating head mechanism of existing electric fan is that the front end at motor shaft is fixed with flabellum, and the rear end and the reducing gear of axle link.The high speed rotary motion of motor has reduced rotating speed through behind the reducing gear, has also changed direction simultaneously.Its oscillating head mechanism is quadratic crank mechanism on principle, and axle has a pivoted arm to link with it at the end of reducing gear output shaft.The output shaft of this pivoted arm and reducing gear together rotates, and by connecting rod swing arm is swung around swing axis, and its pendulum angle is general big about about 90 °.Swing arm is to make a ring-shaped work pieces in general electric fan, and sky is enclosed within on the axle, has one " V " shape groove on its circumference.When shifting block separated with groove, the swing of swing arm is idle running just; When in the shifting block insertion groove, shifting block is done identical yaw motion around axle together with swing arm.If shifting block is transferred to from groove, then motor stops the yaw motion again.It more than is exactly the oscillating head mechanism of commonly used electric fan.(again the base of motor is divided in the certainly actual electric fan two-layer so that adjust the sensing of fan, simple herein for sake of convenience its be motor base.)
The pendulum angle of fan is relevant with the following parameters of mechanism: pivoted arm radius, swing arm radius, length of connecting rod, pivoted arm gyration center are to the distance of pivoted arm gyration center.The motor angle of oscillation that just can obtain requiring reasonable in design.But the oscillating head mechanism of existing electric fan generally has only two shelves, that is: 1, dead beat, its angle of oscillation is 0 °; 2, swing, its angle of oscillation only has a tilt fixing, generally is about 90 °.
The purpose of this utility model is that design one and swaying angle can be realized a plurality of shelves even stepless electric fan yaw angle changeable mechanism.
Mentality of designing of the present utility model is:
If the groove of swing arm is modified into stepped shaft fan groove shape a little, situation just changes to some extent: when shifting block separates fully with the groove of swing arm, motor does not have the yaw motion, and when shifting block fell into " V " shape groove fully, the pendulum angle of motor was identical with swing arm; Above situation is similar to common electric fan.If shifting block falls into the fan groove position, the pendulum angle of motor will reduce, and the numerical value of minimizing equals the angle that shifting block slips in fan groove; When the rotating speed of motor was constant, the cycle of motion of pivoted arm was constant, then also should not change the deflection period of motor, and just the time that stops when commutation has extended.The segment angle of fan groove is big more, and the waiting time is long more, changes the segment angle of fan groove, will obtain the different waiting time, has also changed the pendulum angle of motor.The basic principle of this approach that Here it is is characterized in being easy to realizing in existing mechanism, and is simple.For realizing above-mentioned basic principle, following improvement should be arranged to concrete Element Design:
1, the structure of swing arm
Can learn thus,, will increase new " shelves " of a pendulum angle as long as on the ring surface of original swing arm, increase a fan groove.If increase one deck fan groove again, will increase a new pendulum angle again.The quantity of fan groove can be two or three, also can be a lot of, and numerous " shelves " can be arranged theoretically, and just owing to the restriction of many and reason and condition, these " shelves " number is limited, and the distribution of fan groove can be whole angle of oscillation.If adopt the step trough that gathers, just can realize allowing the user feel that electric fan is the angle of oscillation adjustment of approximate " stepless ".
2, shifting block
Shifting block can be along the radial arrangement of swing arm ring part, can certainly be with shifting block along axial arranged.The advantage that shifting block is arranged vertically is the restriction that its move distance is not subjected to the swing arm radius, so this move distance can be bigger, is convenient to the design of the locking framework of shifting block motion; And the component that produces when shifting block locks swing arm when arranging vertically is vertical with the moving direction of lock pin, can not cause the axial motion of shifting block.Step-like shifting block can make shifting block work in different fan grooves, reaches the purpose that changes angle of oscillation.
The control of shifting block motion can be directly to use hand push (drawing) moving by the user; Also can control by knob on the control panel and flexible axle by user's electric fan.The location positioning of shifting block motion can be locked shifting block by spring, steel ball (pin), and place kick (pin) is the tram that makes the operator that the position sense be arranged and guarantee shifting block with the effect of retaining spring; In some structure, overcome swing arm and the interactional component of shifting block in addition, avoid shifting block stressed in use mobile.
Also positioning means can be arranged to the flexible shaft operation parts and be controlled, control handle generally is arranged on the control panel.As long as processing straight groove in burr-drill hole on the knob bottom surface or on some cylndrical surface can lock flexible axle.
Certainly, can also be designed to fan groove is one, do not have " V " shape groove, and its positioning means is designed to shapes such as wedge shape, and this moment, angle of oscillation was also realized continuous adjustable.In fact, when wedge shape etc. covers fan groove fully, also just played the effect of " V " shape groove.
The utility model specifically is achieved in that
A kind of electric fan yaw angle changeable mechanism, relate to motor cabinet, be loaded on the motor on the motor cabinet, be loaded on the flabellum of the axle front end of motor, be loaded on the retarder of the shaft rear end of motor, be loaded on the pivoted arm on the reducer output shaft, there is an end of a connecting rod to be articulated on the pivoted arm, in motor cabinet one side swing axis is housed, is with swing arm on swing axis, the other end of connecting rod is hinged in the swing arm, radially have groove at the swing arm periphery, the shifting block that cooperates with groove is equipped with in relevant position on motor cabinet, it is characterized in that described groove is a fan groove, also is provided with the position and lock mechanism with the corresponding shifting block of fan groove on the shifting block.
Further scheme is that described fan groove is the stepped shaft fan groove, and the quantity of ladder can be 1, also has n.
Further scheme is: position and lock mechanism comprises the spring in the blind hole that is seated on the motor cabinet, and spring end is equipped with latch, also draw on the shifting block can locked locking m notch, and m=n+1.Also can have on its shifting block and the corresponding step slot of stepped shaft fan groove.
Described position and lock mechanism can be: be loaded on the positioning block on the shifting block, have on the positioning block and the corresponding serrate slot of stepped shaft fan groove, also sit in the blind hole on motor cabinet a spring is arranged, spring end is equipped with latch, on positioning block, also draw can locked locking m notch, and m=n+1.Between its shifting block and motor cabinet, also can load onto a spring.
The shape of described shifting block also can be and the corresponding tile of fan groove, and its front end is a wedge shape.At this moment, have only fan groove and do not have " V " shape groove.
Described shifting block can be two formations of A, B, and every one end is articulated on corresponding two shifting block arms respectively, and the shifting block arm is placed on the swing axis, and the other end all is articulated on the slide bar.
Described position and lock mechanism also can be by flexible axle--knob constitutes, and flexible axle one end is connected on shifting block or the slide bar, and the other end is wound on the knob; In some cases, position and lock mechanism also can be designed to screw mechanism.Certainly, this mainly is useful for the situation that the yaw angle continuously changes with design.
The utility model has the advantages that, as long as make " V " of the prior art shape groove into fan groove or " V " shape groove combines the variable even infinitely variable continuous purpose that has just realized the yaw angle with fan groove, very simple improvement just makes electric fan increase new function, and its stable and reliable operation.
Fig. 1 is the schematic representation of working principle of the present utility model.
Fig. 2 is the schematic representation that the swing arm design has the stepped shaft fan groove.
Fig. 3 is positioning means embodiment 1 a sectional view.
Fig. 4 is that the A of Fig. 3 is to view.
Fig. 5 is positioning means embodiment 2 an assembling schematic representation.
Fig. 6 is positioning means embodiment 3 an assembling schematic representation.
Fig. 7 is that positioning means embodiment 4 is assembling schematic representation, and the B that also is Fig. 9 is to view.
Fig. 8 is positioning means embodiment 4 a sectional view.
Fig. 9 is that the C of Fig. 8 is to view.
Figure 10 is positioning means embodiment 5 an assembling schematic representation.
Figure 11 is the schematic representation of another working state of positioning means embodiment 5.
Figure 12 is the embodiment's 1 of knob a principle schematic.
Figure 13 is the embodiment's 2 of knob a principle schematic.
Below in conjunction with accompanying drawing the utility model is done detailed description.
As Fig. 1, a kind of electric fan yaw angle changeable mechanism, relate to motor cabinet 1, be loaded on the motor 2 on the motor cabinet 1, be loaded on the flabellum 3 of the axle front end of motor 2, be loaded on the retarder 4 of the shaft rear end of motor 2, be loaded on the pivoted arm 5 on retarder 4 output shafts, there is an end of a connecting rod 6 to be articulated on the pivoted arm 5, in motor cabinet 1 one sides swing axis 7 is housed, be with swing arm 8 on swing axis 7, the other end of connecting rod 6 is articulated in the swing arm 8, has fan groove 9 on the basis of " V " of swing arm 8 peripheries shape groove, the shifting block 10 that cooperates with fan groove 9 is equipped with in relevant position on motor cabinet 1, also is provided with on the shifting block 10 and fan groove 9 corresponding position and lock mechanisms.Described position and lock mechanism comprises the spring 11 in the blind hole that is seated on the motor cabinet 1, and locking steel ball 12 is equipped with in spring 11 ends, also draw on the shifting block 10 can locked steel ball 12 lockings 3 serrate slots 13.
As Fig. 2, described fan groove 9 also can be the stepped shaft fan groove, and the quantity of its ladder can have a plurality of, and at this moment, the quantity of serrate slot 13 just should be than more than 14 one of ladders, because of electric fan in the dead beat head status, a serrate slot 13 locking shifting blocks 10 also should be arranged.
As Fig. 3 and Fig. 4, one and the position and lock mechanism that arranges vertically of shifting block 10, have " V " shape groove and a fan groove 9 in its swing arm 8, also be designed to stepped with fan groove 9 corresponding positions on its shifting block 10, sit in the blind hole on motor cabinet 1 spring 11 is arranged, locking steel ball 12 is equipped with in spring 11 ends, also has on shifting block 10 and locks 3 serrate slots 13 that steel ball 12 cooperates.
The difference of Fig. 5 and Fig. 3 only is to be equipped with positioning block 15 on shifting block 10, and between shifting block 10 and motor cabinet 1 spring 16 is housed, and its positioning block 15 is provided with 3 ladders, and serrate slot 13 also is located on the positioning block 15.
The difference of Fig. 6 and Fig. 5 only is do not have ladder on the positioning block 15, and its latch 12 is a lock pin 12.In fact, the acting in conjunction of its positioning block 10 and shifting block is equivalent to the effect of shifting block 10 among Fig. 1.
The working principle of the position and lock mechanism of the foregoing description is, in the time will adjusting the yaw angle, only need draw or press shifting block 10 or positioning block 15, when making latch 12 place in the different serrate slot 13, just can change the yaw state.When the end of shifting block 10 falls into " V " shape groove (also can be described as one and special fan groove), electric fan will be swung synchronously with swing arm 8; When the end of shifting block 10 was arranged in fan groove 9, electric fan also can yaw, but its yaw angle diminishes; When shifting block 10 breaks away from swing arm 8, electric fan will stop swinging, or claim that its yaw angle is 0 °.
Fig. 7, Fig. 8 and Fig. 9 are another and mode of executions of positioning means.At this moment, shifting block 10 is the tile shapes that can move on motor cabinet 1, and its head is wedge shape, only has a fan groove 9 and do not have " V " shape groove in swing arm 8.Its working principle is, it is wide more that wedge-like portion is arranged in the width of fan groove 9, and its yaw angle is big more.
Figure 10 is another embodiment of positioning means.At this moment, also have only a fan groove 9 in the swing arm 8 and do not have " V " shape groove.But its shifting block 10 is divided into two of A, B, and the one end is articulated on corresponding two shifting block arms 17 respectively, and shifting block arm 17 is placed on the arm shaft 7, and the other end all is articulated on the slide bar 18.Its working principle is, when two shifting block A and B piece are against on fan groove 9 edges, and yaw angle maximum, when pulling slide bar 18, shifting block A and B are with close, and the yaw angle will diminish, and when shifting block A and B are in state among Figure 11, electric fan will stop swinging.The position of its slide bar 18 can be determined by flexible axle 19.
As Figure 12 and Figure 13, flexible axle 19 can be wound on the knob 20, only needs turn knob 20 can make flexible axle 19 stretch or contract during use, thereby the position of control shifting block 10 or slide bar 18 changes the yaw state.Just in Figure 12, knob is by taper hole and corresponding awl locking, and among Figure 13, knob is by straight burr groove on the cylndrical surface and the locking of corresponding latch.
Claims (10)
1, a kind of electric fan yaw angle changeable mechanism, relate to motor cabinet (1), be loaded on the motor (2) on the motor cabinet (1), be loaded on the flabellum (3) of the axle front end of motor (2), be loaded on the retarder (4) of the shaft rear end of motor (2), be loaded on the pivoted arm (5) on retarder (4) output shaft, there is an end of a connecting rod (6) to be articulated on the pivoted arm (5), in motor cabinet (1) one side swing axis (7) is housed, on swing axis (7), be with swing arm (8), the other end of connecting rod (6) is hinged in the swing arm (8), radially have groove (9) at swing arm (8) periphery, the shifting block (10) that cooperates with groove (9) is equipped with in relevant position on motor cabinet (1), it is characterized in that described groove (9) is fan groove (9), also is provided with the position and lock mechanism with the corresponding shifting block (10) of fan groove (9) on the shifting block (10).
2, electric fan yaw according to claim 1 angle changeable mechanism is characterized in that described fan groove (9) is stepped shaft fan groove (9), and the quantity of ladder can be 1, also has n.
3, electric fan yaw according to claim 2 angle changeable mechanism, it is characterized in that position and lock mechanism comprises the spring (11) in the blind hole that is seated on the motor cabinet (1), latch (12) is equipped with in spring (11) end, also draw on the shifting block (10) can locked (12) m the profile of tooth notch (13) of locking, and m=n+1.
4, electric fan yaw according to claim 3 angle changeable mechanism is characterized in that also having on shifting block (10) and the corresponding ladder (14) of stepped shaft fan groove (9)
5, electric fan yaw according to claim 2 angle changeable mechanism, it is characterized in that described position and lock mechanism comprises the positioning block (15) that is loaded on the shifting block (10), have on the positioning block (15) and the corresponding ladder (14) of stepped shaft fan groove (9), also sit in the blind hole on motor cabinet (1) spring (11) is arranged, latch (12) is equipped with in spring (11) end, on positioning block (15), also draw can locked (12) m the notch (13) of locking, and m=n+1.
6, electric fan yaw according to claim 5 angle changeable mechanism is characterized in that between shifting block (10) and motor cabinet (1) spring (16) being housed also.
7, electric fan yaw according to claim 1 angle changeable mechanism, the shape that it is characterized in that described shifting block (10) are and the corresponding tile of fan groove (9), and its front end is a wedge shape.
8, electric fan yaw according to claim 1 angle changeable mechanism, it is characterized in that described shifting block (10) is two formations of A, B, and the one end is articulated on corresponding two shifting block arms (17) respectively, shifting block arm (17) is placed on the swing axis (7), and the other end all is articulated on the slide bar (18).
9, according to claim 1 or 2 or 7 described electric fan yaw angle changeable mechanisms, it is characterized in that described position and lock mechanism comprises a flexible axle (19) and positioning knob (20), flexible axle (19) one ends are connected on the shifting block (10), and the other end is wound on the knob (20).
10, electric fan yaw according to claim 8 angle changeable mechanism is characterized in that described position and lock mechanism comprises that a flexible axle (19) and positioning knob (20) flexible axle (19) one ends are connected in slide bar (18), and the other end is wound on the knob (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222216 CN2403925Y (en) | 2000-01-27 | 2000-01-27 | Oscillation angle variable mechanism for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222216 CN2403925Y (en) | 2000-01-27 | 2000-01-27 | Oscillation angle variable mechanism for fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2403925Y true CN2403925Y (en) | 2000-11-01 |
Family
ID=33586989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00222216 Expired - Fee Related CN2403925Y (en) | 2000-01-27 | 2000-01-27 | Oscillation angle variable mechanism for fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2403925Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236719A (en) * | 2018-11-02 | 2019-01-18 | 四川中邦模具有限公司 | Pitch regulation structure for fan |
| CN109236718A (en) * | 2018-11-02 | 2019-01-18 | 四川中邦模具有限公司 | Fan pitch regulation bar |
-
2000
- 2000-01-27 CN CN 00222216 patent/CN2403925Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236719A (en) * | 2018-11-02 | 2019-01-18 | 四川中邦模具有限公司 | Pitch regulation structure for fan |
| CN109236718A (en) * | 2018-11-02 | 2019-01-18 | 四川中邦模具有限公司 | Fan pitch regulation bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |