CN103225617B - Electric fan with adjustable pitching angle - Google Patents
Electric fan with adjustable pitching angle Download PDFInfo
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- CN103225617B CN103225617B CN201310132282.6A CN201310132282A CN103225617B CN 103225617 B CN103225617 B CN 103225617B CN 201310132282 A CN201310132282 A CN 201310132282A CN 103225617 B CN103225617 B CN 103225617B
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- electric fan
- pitching angle
- pitch rotation
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Abstract
The invention discloses an electric fan with an adjustable pitching angle. A pitching rotating rack is hinged at the upper end of a support frame and can rotate up and down around the support frame; an oscillating mechanism is arranged above the pitching rotating rack and can rotate left and right relative to the pitching rotating rack; an adjusting and locating mechanism is arranged between the support frame and the pitching rotating rack, is used for adjusting and fixing the pitching angle between the support frame and the pitching rotating rack, and comprises a locating block; the locating block is arranged at the bottom of the pitching rotating rack; a plurality of tooth-shaped clamping positions are arranged on the bottom end surface of the locating block; a clamp foot is arranged at the bottom of the support frame and can elastically deform downwards under the action of an external force; and a projection or a groove is arranged on the top end surface of the clamp foot, is matched with tooth-shaped clamping positions to form different pitching angles, and can be clamped in or separated from the tooth-shaped clamping positions along with the elastic deformation of the clamp foot. Compared with a traditional spring ball structure only depending on side locating, the electric fan has the advantages that the effective contact area is large, the locating is more reliable, and meanwhile a user only needs to directly rotate the pitching rotating rack to obtain different pitching angles, so that the operation is convenient.
Description
Technical field
The present invention relates to a kind of fan, the electric fan that particularly a kind of pitching angle is adjustable.
Background technique
Existing electric fan is in order to meet the multi-faceted air-supply requirement of Consumer, the mechanism shaken the head and shake the head up and down in left and right generally can be set, mainly include two kinds, one respectively with two motors is shaken the head and shake the head up and down in drived control two groups of fourbar linkages realization left and right, its component are many, complex structure, manufacture cost is high, makes trouble, another kind utilizes an Electric Machine Control to realize left and right to shake the head, shake the head by regulating positioning device manual tune up and down, with reference to Fig. 1, for the electric fan of existing manual tune pitching angle, it mainly comprises the supporting frame 2 ' be connected with base, supporting frame 2 ' upper end thereof has the pitch rotation frame 3 ' that can rotate up and down 2 ' around supporting frame, the adjustment positioning means regulating also luffing angle between positioning supporting frame 2 ' and pitch rotation frame 3 ' is provided with between supporting frame 2 ' and pitch rotation frame 3 ', described adjustment positioning means comprises the blind hole 31 ' being arranged at pitch rotation frame 3 ' bottom, the spring 11 ' of ball 12 ' and pressing ball 12 ' is provided with in blind hole 31 ', the side of support frame as described above 2 ' is provided with multiple positioning hole 21 ', described ball 12 ' can be corresponding with each positioning hole 21 ' and be absorbed in positioning hole 21 ' under the effect of spring 11 '.This structure relies on coordinating of ball 12 ' and each positioning hole 21 ' thus realizes the regulation and localization of pitching angle, structure is simple, cost of production is low, but because it is only by location, side, stressed property is poor, spring 11 ' easily lost efficacy, regulate positioning means poor reliability, affect the stability of whole electric fan time serious, and then affect the normal use of electric fan, and need to press ball 12 ' simultaneously and rotate pitch rotation frame 3 ', troublesome poeration during the adjustment of this structure.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides the electric fan that a kind of structure is simple, pitching angle reliable pitching angle easy to adjust is adjustable.
The technical solution adopted for the present invention to solve the technical problems is:
The electric fan that a kind of pitching angle is adjustable, comprise the supporting frame be connected with base, supporting frame upper end thereof has the pitch rotation frame that can rotate up and down around supporting frame, the oscillating mechanism of the relative pitch rotation frame left-right rotation of energy is provided with above pitch rotation frame, the adjustment positioning means regulating also luffing angle between positioning supporting frame and pitch rotation frame is provided with between support frame as described above and pitch rotation frame, described adjustment positioning means comprises the positioning block be arranged at bottom pitch rotation frame, the bottom end of described positioning block is provided with some profile of tooth screens, being provided with bottom support frame as described above under external force can the card base of resiliently deformable downwards, the top end of described card base is provided with projection or groove, projection or groove can form different pitching angle from each profile of tooth clamping matching and can follow card base resiliently deformable and snap in or exit profile of tooth screens.
As the improvement of technique scheme, the circular arc bottom end face that described positioning block bottom end is is the center of circle with the hinged center of supporting frame and pitch rotation frame.
Further, described card base is arch.
Further, described projection or groove are circular arc.
Further, support frame as described above is connected with base by column, and described column is provided with and surrounds supporting frame with the cavity preventing it from exposing.
Further, described oscillating mechanism is connected with fan blade, blade cover is provided with outside fan blade, described blade cover comprises forward and backward cover, described oscillating mechanism comprises forward and backward housing, and described front case is provided with locating column and is with externally threaded erection column, and described back cover is provided with through hole, and the positioning hole that front case is positioned is coordinated with locating column, front case is fixedly connected with back cover with tapped fixed block through after through hole by erection column.
Further, described forward and backward cover connects by being with the locked clip device of opening, and the opening two ends of described clip are bolted locking, and the inwall of described clip is provided with the annular slot being convenient to clamp forward and backward cover.
Further, described front case lower end is provided with the arc block that auxiliary oscillating mechanism rotates, and described pitch rotation erection is equipped with the cylinder matched with arc block.
Further, described oscillating mechanism comprises motor, and motor is connected with driving mechanism, and driving mechanism is second-stage worm gear worm gears, and the output shaft of driving mechanism is connected with crank, and crank is hinged with connecting rod, and rod hinge connection is on pitch rotation frame.
Further, described oscillating mechanism is connected with pitch rotation frame buckle.
The invention has the beneficial effects as follows: the present invention is by the profile of tooth screens of positioning block bottom end and the projection of card base top end or groove fit, thus pitch rotation frame is located, in contrast to traditional spring ball structure only leaning on location, side, effective area of contact is large, locates more reliable; Projection or groove can be followed card base resiliently deformable and snap in or exit profile of tooth screens simultaneously, directly rotate pitch rotation frame and adjustable different pitching angle, easy to operate.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the electric fan of existing manual tune pitching angle;
Fig. 2 is mounting structure schematic diagram of the present invention;
Fig. 3 is installment state decomposing schematic representation of the present invention;
Fig. 4 is the decomposing schematic representation of partial structurtes in the present invention;
Fig. 5 is the sectional view of Fig. 4 installment state;
Fig. 6 is the stereogram of the supporting frame in the present invention;
Fig. 7 is the plan view of Fig. 4 installment state;
Fig. 8 is the decomposing schematic representation of back cover in the present invention and front case installment state;
Fig. 9 is the partial schematic diagram of the clip in the present invention.
Embodiment
With reference to Fig. 2 to Fig. 9, the electric fan that a kind of pitching angle of the present invention is adjustable, comprise the supporting frame 2 be connected with base, supporting frame 2 upper end thereof has the pitch rotation frame 3 that can rotate around supporting frame about 2, the oscillating mechanism 4 of relative pitch rotation frame 3 left-right rotation of energy is provided with above described pitch rotation frame 3, the adjustment positioning means regulating also luffing angle between positioning supporting frame 2 and pitch rotation frame 3 is provided with between support frame as described above 2 and pitch rotation frame 3, described adjustment positioning means comprises the positioning block 31 be arranged at bottom pitch rotation frame 3, the bottom end of described positioning block 31 is provided with some profile of tooth screens 32, being provided with bottom support frame as described above 2 under external force can the card base 21 of resiliently deformable downwards, the top end of described card base 21 is provided with projection 22 or groove, projection 22 or groove can coordinate from each profile of tooth screens 32 and form different pitching angle and can follow card base 21 resiliently deformable and snap in or exit profile of tooth screens 32.
Pitch rotation frame 3 by the profile of tooth screens 32 of positioning block 31 bottom end and the projection 22 of card base 21 top end or groove fit, thus is located by the present invention, and in contrast to traditional spring ball structure only leaning on location, side, effective area of contact is large, locates more reliable; Projection 22 or groove can be followed card base 21 resiliently deformable and snap in or exit profile of tooth screens 32 simultaneously, directly rotate pitch rotation frame 3 i.e. adjustable different pitching angle, easy to operate.
Preferably, the circular arc bottom end face that described positioning block 31 bottom end is is the center of circle with supporting frame 2 with the hinged center of pitch rotation frame 3, this circular arc bottom end face makes pitch rotation frame 3 avoid interfering with card base 21 in rotation process, also make the effective area of contact between profile of tooth screens 32 with projection 22 keep equal simultaneously, thus make rotatory force even.Preferably, described card base 21 is in arch, because the upper-end surface of card base 21 is curved, avoid interfering with circular arc bottom end face, simultaneously because supporting frame 2 adopts plastics, card base 21 relies on two-end-point to support, and is relatively easily out of shape after making card base 21 pressurized, and there is certain sagitta due to arch, so not easy-rupturing during card base 21 pressurized.
Further, the degree of reliability considering projection 22 or be connected between groove with profile of tooth screens 32 has influence on the reliability of locating between pitch rotation frame 3 and supporting frame 2 and easiness in relative rotation, between pitch rotation frame 3 and supporting frame 2, effective area of contact too much will cause and relatively rotate difficulty, effective area of contact is crossed major general and is caused reliability of positioning poor, preferably, described projection 22 or groove are circular arc, circular arc matches with profile of tooth screens 32 and makes projection 22 or groove more easily snap under the rotatory force effect of pitch rotation frame 3 or exit profile of tooth screens 32, make profile of tooth screens 32 coordinate closely with between projection 22 or groove simultaneously, connect reliable.Certainly above-mentioned just preferred embodiment, projection 22 or groove also can be arranged to the profile of tooth suitable with profile of tooth screens 32.
Support frame as described above 2 is connected with base by column 1, and described column 1 is provided with and surrounds supporting frame 2 with the cavity preventing it from exposing.Column 1 plays a supportive role, and avoids supporting frame 2 to expose simultaneously, makes whole electric fan outward appearance more attractive in appearance.Particularly, in the present embodiment, described pitch rotation frame 3 is positioned at above positioning block 31 and is provided with the hinging hole 33 hinged with supporting frame 2, support frame as described above 2 comprises upper end and is provided with the U-shaped rotating turret 23 be convenient to pitch rotation frame 3 and rotated, the two side of U-shaped rotating turret 23 offers for hinged fixed hole 24, described column 1 upper end is provided with the U-shaped arm 11 suitable with U-shaped rotating turret 23, U-shaped arm 11 two side offers the mounting hole 12 corresponding with fixed hole 24, bolt is through mounting hole 12, fixed hole 24 and hinging hole 33, use nut lockk bolt again, thus realize pitch rotation frame 3, connection between supporting frame 2 and column 1 three.
Further, described oscillating mechanism 4 is connected with fan blade 5, blade cover 6 is provided with outside fan blade 5, described blade cover 6 comprises forward and backward cover 61,62, described oscillating mechanism 4 comprises forward and backward housing 71,72, described front case 71 is provided with locating column 712 and is with externally threaded erection column 711, described back cover 62 is provided with through hole 621, and the positioning hole 622 that front case 71 is positioned is coordinated with locating column 712, front case 71 is fixedly connected with back cover 62 with tapped fixed block 8 through after through hole 621 by erection column 711.During installation, the locating column 712 of front case 71 is aimed at the positioning hole 622 of back cover 62, after erection column 711 is penetrated through hole 621, fixed block 8 is screwed in erection column 711, thus front case 71 and back cover 62 quick position are installed.Preferably, described forward and backward cover 61,62 is locked by the clip 63 of band opening and is connected, the opening two ends of described clip 63 are bolted locking, and the inwall of described clip 63 is provided with the annular slot 631 being convenient to clamp forward and backward cover 61,62, and this design easy disassembly, connection are reliably.Preferably, described front case 71 lower end is provided with the arc block 713 that auxiliary oscillating mechanism 4 rotates, described pitch rotation frame 3 is provided with the cylinder 36 matched with arc block 713, in oscillating mechanism 4 left-right rotation process, arc block 713 is connected to cylinder 36 outer side surface and rotates, and makes the rotation of oscillating mechanism 4 more steady.
Further, described oscillating mechanism 4 comprises motor 41, and motor 41 is connected with driving mechanism 42, driving mechanism 42 is second-stage worm gear worm gears, the output shaft of driving mechanism 42 is connected with crank 43, and crank 43 is hinged with connecting rod 44, and connecting rod 44 is articulated with on pitch rotation frame 3.Second-stage worm gear worm drive reduction speed ratio is large, changes transmission direction simultaneously, under identical reduction speed ratio, takes up room less, make oscillating mechanism 4 compacter, make whole electric fan lighter and handier.
In order to quick mounting oscillating mechanism 4 and rotating turret, described oscillating mechanism 4 is connected with pitch rotation frame 3 buckle, particularly, pitch rotation frame 3 upper end be provided with band convex buckle 35 pillar 34, pillar 34 is connected with support platform, and oscillating mechanism 4 lower end is provided with clamping through hole 45, and pillar 34 inserts clamping through hole 45, convex button 35 snaps in the upper-end surface of clamping through hole 45 simultaneously, and oscillating mechanism 4 lower end is connected to support platform upper-end surface.
Certainly, the present invention, except above-mentioned mode of execution, can also have other structural distortion, and these equivalent technical solutions also should within its protection domain.
Claims (10)
1. the electric fan that a pitching angle is adjustable, comprise the supporting frame (2) be connected with base, supporting frame (2) upper end thereof has the pitch rotation frame (3) that can rotate up and down around supporting frame (2), pitch rotation frame (3) top is provided with the oscillating mechanism (4) of relative pitch rotation frame (3) left-right rotation of energy, the adjustment positioning means regulating also luffing angle between positioning supporting frame (2) and pitch rotation frame (3) is provided with between support frame as described above (2) and pitch rotation frame (3), it is characterized in that: described adjustment positioning means comprises the positioning block (31) being arranged at pitch rotation frame (3) bottom, the bottom end of described positioning block (31) is provided with some profile of tooth screens (32), support frame as described above (2) bottom is provided with under external force can the card base (21) of resiliently deformable downwards, the top end of described card base (21) is provided with projection (22) or groove, projection (22) or groove can coordinate from each profile of tooth screens (32) and form different pitching angle and can follow card base (21) resiliently deformable and snap in or exit profile of tooth screens (32).
2. the electric fan that a kind of pitching angle according to claim 1 is adjustable, is characterized in that: described positioning block (31) bottom end is take the hinged center of supporting frame (2) and pitch rotation frame (3) as the circular arc bottom end face in the center of circle.
3. the electric fan that a kind of pitching angle according to claim 1 is adjustable, is characterized in that: described card base (21) is in arch.
4. the electric fan that a kind of pitching angle according to claim 1 is adjustable, is characterized in that: described projection (22) or groove are circular arc.
5. the electric fan that a kind of pitching angle according to claim 1 is adjustable, is characterized in that: support frame as described above (2) is connected with base by column (1), and described column (1) is provided with and surrounds supporting frame (2) with the cavity preventing it from exposing.
6. the electric fan that a kind of pitching angle according to claim 1 is adjustable, it is characterized in that: described oscillating mechanism (4) is connected with fan blade (5), blade cover (6) is provided with outside fan blade (5), before described blade cover (6) comprises, back cover (61, 62), before described oscillating mechanism (4) comprises, rear case (71, 72), described front case (71) is provided with locating column (712) and is with externally threaded erection column (711), described back cover (62) is provided with through hole (621), and the positioning hole (622) that front case (71) is positioned is coordinated with locating column (712), front case (71) is fixedly connected with back cover (62) with tapped fixed block (8) through after through hole (621) by erection column (711).
7. the electric fan that a kind of pitching angle according to claim 6 is adjustable, it is characterized in that: described forward and backward cover (61,62) is connected by clip (63) locking of band opening, the opening two ends of described clip (63) are bolted locking, and the inwall of described clip (63) is provided with the annular slot (631) being convenient to clamp forward and backward cover (61,62).
8. the electric fan that a kind of pitching angle according to claim 6 is adjustable, it is characterized in that: described front case (71) lower end is provided with the arc block (713) that auxiliary oscillating mechanism (4) rotates, described pitch rotation frame (3) is provided with the cylinder (36) matched with arc block (713).
9. the electric fan that a kind of pitching angle according to claim 1 is adjustable, it is characterized in that: described oscillating mechanism (4) comprises motor (41), motor (41) is connected with driving mechanism (42), driving mechanism (42) is second-stage worm gear worm gears, the output shaft of driving mechanism (42) is connected with crank (43), crank (43) is hinged with connecting rod (44), and connecting rod (44) is articulated with on pitch rotation frame (3).
10. the electric fan that a kind of pitching angle according to claim 1 is adjustable, is characterized in that: described oscillating mechanism (4) is connected with pitch rotation frame (3) buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310132282.6A CN103225617B (en) | 2013-04-16 | 2013-04-16 | Electric fan with adjustable pitching angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310132282.6A CN103225617B (en) | 2013-04-16 | 2013-04-16 | Electric fan with adjustable pitching angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103225617A CN103225617A (en) | 2013-07-31 |
| CN103225617B true CN103225617B (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310132282.6A Active CN103225617B (en) | 2013-04-16 | 2013-04-16 | Electric fan with adjustable pitching angle |
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| Country | Link |
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| CN (1) | CN103225617B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104750117B (en) * | 2013-12-25 | 2018-07-17 | 珠海格力电器股份有限公司 | The method of adjustment and device of equipment posture |
| CN106050701B (en) * | 2016-07-26 | 2019-07-02 | 广东美的环境电器制造有限公司 | Fan |
| CN108443198B (en) * | 2018-05-14 | 2023-10-31 | 广东美的环境电器制造有限公司 | Driving mechanism, machine head mechanism and fan |
| CN108732768B (en) * | 2018-05-31 | 2021-05-11 | 重庆医科大学附属永川医院 | Radiology department image diagnosis film reading device |
| KR20200086524A (en) * | 2019-01-09 | 2020-07-17 | 엘지이노텍 주식회사 | Camera Angle Adjustment Device |
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|---|---|---|---|---|
| US5458462A (en) * | 1994-07-27 | 1995-10-17 | Accutek Products Corp. | Swivel mechanism for electrical fan |
| CN200999744Y (en) * | 2006-12-31 | 2008-01-02 | 胡丰 | Right and left pivoting motion and pitching rocking electric fan head |
| CN201093415Y (en) * | 2007-10-17 | 2008-07-30 | 大日豪实业股份有限公司 | Desk lamp angle adjusting structure |
| CN201953693U (en) * | 2010-12-17 | 2011-08-31 | 潘韵松 | Fan |
| CN202789633U (en) * | 2012-08-08 | 2013-03-13 | 冯锦基 | Elevation adjustment device of novel fan |
| CN203214362U (en) * | 2013-04-16 | 2013-09-25 | 广东金莱特电器股份有限公司 | Electric fan with adjustable pitch angle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10274193A (en) * | 1997-03-28 | 1998-10-13 | Sanyo Electric Co Ltd | Wall-mounted electric fan |
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2013
- 2013-04-16 CN CN201310132282.6A patent/CN103225617B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5458462A (en) * | 1994-07-27 | 1995-10-17 | Accutek Products Corp. | Swivel mechanism for electrical fan |
| CN200999744Y (en) * | 2006-12-31 | 2008-01-02 | 胡丰 | Right and left pivoting motion and pitching rocking electric fan head |
| CN201093415Y (en) * | 2007-10-17 | 2008-07-30 | 大日豪实业股份有限公司 | Desk lamp angle adjusting structure |
| CN201953693U (en) * | 2010-12-17 | 2011-08-31 | 潘韵松 | Fan |
| CN202789633U (en) * | 2012-08-08 | 2013-03-13 | 冯锦基 | Elevation adjustment device of novel fan |
| CN203214362U (en) * | 2013-04-16 | 2013-09-25 | 广东金莱特电器股份有限公司 | Electric fan with adjustable pitch angle |
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| Publication number | Publication date |
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| CN103225617A (en) | 2013-07-31 |
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