CN110630546B - Stepless angle-variable oscillating device applied to electric fan - Google Patents
Stepless angle-variable oscillating device applied to electric fan Download PDFInfo
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- CN110630546B CN110630546B CN201910958848.8A CN201910958848A CN110630546B CN 110630546 B CN110630546 B CN 110630546B CN 201910958848 A CN201910958848 A CN 201910958848A CN 110630546 B CN110630546 B CN 110630546B
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- 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
- F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
- F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
Abstract
A stepless angle-variable oscillating device applied to an electric fan comprises a base, wherein a sliding plate is arranged on the right side of the top side of the base, the bottom side of the sliding plate is in sliding contact fit with the top side of the base, a threaded through hole is formed in the middle of the right side of the sliding plate, a screw rod is installed in the threaded through hole, a second shaft seat is installed at one end of the periphery of a gear column in a bearing mode, and the second shaft seat is fixedly connected with the base through a first inverted L-shaped; the top side of the worm wheel is provided with a worm, the worm wheel is meshed and matched with the worm, one end of the worm is connected with the left side of the supporting plate through a bearing, the bottom side of the supporting plate is connected with the top side of the sliding plate, the other end of the worm is fixedly provided with a coaxial gear, the gear is in transmission fit with the gear column through a transmission gear, and the transmission gear is rotationally connected with the supporting plate. The electric fan oscillating mechanism is simple in structure, convenient to use and operate, capable of achieving stepless adjustment of the oscillating angle of the electric fan and achieving uniform oscillating, capable of meeting market demands and suitable for popularization.
Description
Technical Field
The invention belongs to the field of oscillating devices of electric fans, and particularly relates to a stepless angle-variable oscillating device applied to an electric fan.
Background
The existing electric fan shakes head through a crank and rocker mechanism, but the crank and rocker mechanism has a quick-return characteristic, so that the electric fan cannot shake head at a constant speed, the electric fan shakes head too hard, the shaking angle of the existing electric fan cannot be adjusted generally, even if the shaking device can be adjusted, the shaking device cannot be adjusted in a stepless mode or controlled through electronic software, so that the structure is complex, the electric fan shaking device is inconvenient to maintain, and the actual requirements cannot be met.
Disclosure of Invention
The invention provides a stepless variable-angle oscillating device applied to an electric fan, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
a stepless angle-variable oscillating device applied to an electric fan comprises a base, a sliding plate is arranged on the right side of the top side of the base, the bottom side of the sliding plate is in sliding contact fit with the top side of the base, a threaded through hole is formed in the middle of the right side of the sliding plate, a lead screw is installed in the threaded through hole, a left end bearing of the lead screw is connected with the right side of a vertical plate, the bottom side of the vertical plate is fixedly connected with the base, a first reciprocating lead screw is arranged above the sliding plate, two ends of the periphery of the first reciprocating lead screw are respectively provided with a first shaft seat in a bearing mode, the first shaft seats are respectively connected with the sliding plate, a coaxial worm wheel is fixedly installed at the rear end of the first reciprocating lead screw, a first nut is installed in the middle of the periphery of the first reciprocating lead screw in a matching mode, one side of the periphery of the first nut is hinged and connected, the left end of an output shaft of the double-shaft motor is fixedly provided with a fan blade, the right end of the output shaft of the double-shaft motor is fixedly connected with one end of a telescopic universal coupling, the other end of the telescopic universal coupling is fixedly connected with one end of a gear column, one end of the periphery of the gear column is provided with a second shaft seat in a bearing mode, and the second shaft seat is fixedly connected with a base through a first inverted L-shaped rod; the top side of the worm wheel is provided with a worm, the worm wheel is meshed and matched with the worm, one end of the worm is connected with the left side of the supporting plate through a bearing, the bottom side of the supporting plate is connected with the top side of the sliding plate, the other end of the worm is fixedly provided with a coaxial gear, the gear is in transmission fit with the gear column through a transmission gear, and the transmission gear is rotationally connected with the supporting plate.
The stepless angle-changing oscillating device applied to the electric fan is characterized in that a second reciprocating lead screw is arranged on the top side of the sliding plate, third shaft seats are respectively mounted at two ends of the periphery of the second reciprocating lead screw in a bearing mode, the third shaft seats are respectively fixedly connected with the sliding plate, a second nut is mounted on the periphery of the second reciprocating lead screw in a matched mode, transverse plates are respectively fixedly mounted on the top side and the bottom side of the second nut, the first shaft seats are respectively fixedly connected with the transverse plates on the upper side, the bottom side of the supporting plate is fixedly connected with the transverse plates on the upper side, the bottom side of the transverse plates on the lower side is matched with the top side of the sliding plate in a sliding contact mode, and the gear column.
The transmission device comprises a transverse shaft, the left end of the transverse shaft is fixedly connected with the right end of a gear column, the transverse shaft is collinear with the central line of the gear column, a first helical gear is fixedly installed at the right end of the transverse shaft after penetrating through a preformed hole in the right side of a supporting plate, a nut is arranged on the right side of the top side of a sliding plate and fixedly connected with the sliding plate, a bolt is installed in the nut through threads, a left end bearing of the bolt is connected with one side of the periphery of a sleeve, a coaxial short shaft is installed in the sleeve through a bearing, two ends of the short shaft are respectively fixedly installed with a coaxial second helical gear, a third helical gear is fixedly installed on the right side of the periphery of a second reciprocating lead screw, the third helical gear and the first helical gear are respectively meshed with corresponding second helical gears, and the sleeve is fixedly connected with the nut through a plurality.
The stepless angle-changing oscillating device applied to the electric fan is characterized in that the middle bearing on the right side of the first bevel gear is connected with one end of the second inverted-L-shaped rod, and the other end of the second inverted-L-shaped rod is fixedly connected with the screw nut.
The stepless angle-changing oscillating device applied to the electric fan is characterized in that the middle bearing on the right side of the transmission gear is connected with one end of the supporting rod, and the other end of the supporting rod is fixedly connected with the supporting plate.
According to the stepless angle-variable oscillating device applied to the electric fan, the right ends of the screw rod and the bolt are respectively and fixedly provided with the hand wheel.
The invention has the advantages that: the electric fan oscillating mechanism is simple in structure, convenient to use and operate, capable of achieving stepless adjustment of the oscillating angle of the electric fan and achieving uniform oscillating, capable of meeting market demands and suitable for popularization. When the invention is used, the double-shaft motor is electrified, the output shaft on the left side of the double-shaft motor drives the fan blades to rotate, the output shaft on the right side of the double-shaft motor drives the gear post to rotate through the telescopic universal coupling, the gear post drives the worm to rotate through the transmission gear and the gear, the worm drives the worm wheel to rotate, the worm wheel drives the first reciprocating lead screw to rotate, the first nut continuously reciprocates back and forth along the reciprocating lead screw, the first nut drives one end of the telescopic rod to swing along the axis of the vertical shaft, the vertical shaft drives the double-shaft motor and the fan blades to shake at a constant speed, the telescopic rod freely stretches out and draws, thereby driving the first reciprocating screw rod to move left and right, when the first reciprocating screw rod moves right and the telescopic rod is further stretched, the oscillating angle of the fan blades is reduced, when first reciprocal lead screw left movement, the telescopic link was further compressed, the angle of shaking the head of flabellum grow.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is an enlarged view of section I of FIG. 1; FIG. 3 is an enlarged view of a portion II of FIG. 1; fig. 4 is an enlarged view of the view from the direction a of fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A stepless angle-changing oscillating device applied to an electric fan comprises a base 1, a sliding plate 2 is arranged on the right side of the top side of the base 1, the bottom side of the sliding plate 2 is in sliding contact fit with the top side of the base 1, a thread through hole 3 is formed in the middle of the right side of the sliding plate 2, a lead screw 4 is installed in the thread through hole 3, the left end of the lead screw 4 is connected with the right side of a vertical plate 5 through a bearing, the bottom side of the vertical plate 5 is fixedly connected with the base 1, a first reciprocating lead screw 6 is arranged above the sliding plate 2, the two ends of the periphery of the first reciprocating lead screw 6 are respectively provided with a first shaft seat 7 through bearings, the first shaft seats 7 are respectively connected with the sliding plate 2, a coaxial worm wheel 8 is fixedly installed at the rear end of the first reciprocating lead screw 6, a first nut 9 is installed in the middle of the periphery of the first reciprocating lead screw 6 in a matching, the lower end of a vertical shaft 11 is connected with a top side bearing of a base 1, a double-shaft motor 12 is fixedly installed at the upper end of the vertical shaft 11, a fan blade 26 is fixedly installed at the left end of an output shaft of the double-shaft motor 12, the right end of the output shaft of the double-shaft motor 12 is fixedly connected with one end of a telescopic universal coupling 13, the other end of the telescopic universal coupling 13 is fixedly connected with one end of a gear column 14, a second shaft seat 15 is installed at one end of the periphery of the gear column 14 through a bearing, the second shaft seat 15 is fixedly connected with the base 1 through a first inverted L-shaped rod 16, and the first inverted; the top side of the worm wheel 8 is provided with a worm 17, the worm wheel 8 is meshed and matched with the worm 17, one end of the worm 17 is connected with the left side of a supporting plate 18 in a bearing mode, the bottom side of the supporting plate 18 is connected with the top side of the sliding plate 2, the other end of the worm 17 is fixedly provided with a coaxial gear 19, the gear 19 is in gear transmission matching with the gear column 14 through a transmission gear 20, and the transmission gear 20 is in rotary connection with the supporting plate 18. The electric fan oscillating mechanism is simple in structure, convenient to use and operate, capable of achieving stepless adjustment of the oscillating angle of the electric fan and achieving uniform oscillating, capable of meeting market demands and suitable for popularization. When the invention is used, the double-shaft motor 12 is electrified, the output shaft on the left side of the double-shaft motor 12 drives the fan blade 26 to rotate, the output shaft on the right side of the double-shaft motor 12 drives the gear post 14 to rotate through the telescopic universal coupling 13, the gear post 14 drives the worm 17 to rotate through the transmission gear 20 and the gear 19, the worm 17 drives the worm wheel 8 to rotate, the worm wheel 8 drives the first reciprocating lead screw 6 to rotate, the first nut 9 continuously reciprocates back and forth along the reciprocating lead screw 6, the first nut 9 drives one end of the telescopic rod 10 to swing along the axis of the vertical shaft 11, the vertical shaft 11 drives the double-shaft motor 12 and the fan blade 26 to swing at a constant speed, the telescopic rod 10 freely stretches and retracts, the screw rod 4 is screwed, the sliding plate 2 moves left and right along the top side of the base 1, the first reciprocating lead screw 6 is driven to move left and, when the first reciprocating screw 6 moves to the left and the telescopic rod 10 is further compressed, the oscillating angle of the fan blades 26 becomes larger.
Specifically, as shown in the figure, a second reciprocating lead screw 21 is arranged on the top side of the sliding plate 2 according to the embodiment, third shaft seats 22 are respectively bearing-mounted at two ends of the periphery of the second reciprocating lead screw 21, the third shaft seats 22 are respectively fixedly connected with the sliding plate 2, second nuts 23 are mounted on the periphery of the second reciprocating lead screw 21 in a matching manner, transverse plates 24 are respectively fixedly mounted on the top side and the bottom side of the second nuts 23, the first shaft seats 7 are respectively fixedly connected with the transverse plates 24 on the upper side, the bottom side of the supporting plate 18 is fixedly connected with the transverse plates 24 on the upper side, the bottom side of the transverse plate 24 on the lower side is in sliding contact with the top side of the sliding plate 2, and the gear column 14. The gear post 14 drives the second reciprocating screw 21 to rotate through the transmission device 25, the second nut 23 reciprocates left and right on the second reciprocating screw 21, the transverse plate 24 at the bottom side moves left and right along the top side of the sliding plate 2, the transverse plate 24 at the top side drives the first reciprocating screw 6 to move left and right through the first shaft seat 7, and pushes and pulls one end of the telescopic rod 10 through the first nut 9, the support plate 18 drives the gear 19 to move left and right through the worm 17, the support plate 18 drives the transmission gear 20 to move left and right, the gear 19 keeps meshed fit with the transmission gear 20, the transmission gear 20 moves left and right along the gear post 14 and keeps meshed fit with the gear post 14, because the stroke of the first nut 9 moving back and forth along the first reciprocating screw 6 is inconvenient, the length of the telescopic rod 10 is in continuous change, the amplitude of the telescopic rod 10 swinging with the axis of the, the swing angle of the fan blade 26 becomes small, the telescopic rod 10 is shortened, and the swing angle of the fan blade 26 is increased.
Specifically, as shown in the figure, the transmission device 25 according to the embodiment includes a horizontal shaft 251, a left end of the horizontal shaft 251 is fixedly connected with a right end of the gear column 14, the horizontal shaft 251 is collinear with a center line of the gear column 14, a first helical gear 252 is fixedly installed at a right end of the horizontal shaft 251 through a preformed hole at a right side of the support plate 18, a screw nut 253 is arranged at a right side of a top side of the sliding plate 2, the screw nut 253 is fixedly connected with the sliding plate 2, a bolt 254 is installed in the screw nut 253 through a thread, a left end bearing of the bolt 254 is connected with one side of an outer periphery of a sleeve 255, a coaxial short shaft 256 is bearing-installed in the sleeve 255, a coaxial second helical gear 257 is fixedly installed at two ends of the short shaft 256 respectively, a third, the first bevel gears 252 are engaged with the corresponding second bevel gears 257, and the sleeve 255 is fixedly connected with the nut 253 through a plurality of small telescopic rods 259. When the gear column 14 rotates, the transverse shaft 251 is driven to rotate, the transverse shaft 251 rotates through the first helical gear 252 and the second helical gear 257 on the upper side and the second short shaft 256, and the short shaft 256 drives the second reciprocating screw 21 to rotate through the second helical gear 257 on the lower side and the third helical gear 258, so that transmission between the gear column 14 and the second reciprocating screw 21 is realized, and the swing angle of the fan blade 26 is continuously changed; when the bolt 254 is screwed, the bolt 254 drives the short shaft 256 to move left and right through the sleeve 255, the small telescopic rod 259 is stretched or compressed, and when the second bevel gear 257 is separated from the corresponding first bevel gear 252 and the third bevel gear 258, the gear column 14 and the second reciprocating screw 21 stop transmission, and the swing angle of the fan blade 26 is fixed.
Further, as shown in the figure, the middle bearing at the right side of the first bevel gear 252 in this embodiment is connected to one end of the second inverted-L-shaped rod 27, and the other end of the second inverted-L-shaped rod 27 is fixedly connected to the nut 253. The stability of the transverse shaft 251 can be increased, and the situation that the transverse shaft 251 cannot enable the first bevel gear 251 and the second bevel gear 257 on the upper side to be in normal meshing fit due to elastic deformation can be reduced.
Further, as shown in the drawings, the middle bearing at the right side of the transmission gear 20 in the embodiment is connected to one end of the supporting rod 28, and the other end of the supporting rod 28 is fixedly connected to the supporting plate 18. The support plate 18 can move the transmission gear 20 left and right through the support rod 28.
Furthermore, as shown in the figure, the hand wheel 29 is fixedly installed at the right ends of the screw rod 4 and the bolt 254 respectively. Screwing the screw rod 4 or the bolt 254 through the hand wheel 29 is more labor-saving, and the use experience of a user is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. The utility model provides a be applied to stepless variable angle head shaking device of electric fan which characterized in that: comprises a base (1), a sliding plate (2) is arranged on the right side of the top side of the base (1), the bottom side of the sliding plate (2) is in sliding contact fit with the top side of the base (1), a thread through hole (3) is formed in the middle of the right side of the sliding plate (2), a lead screw (4) is installed in the thread through hole (3), the left end bearing of the lead screw (4) is connected with the right side of a vertical plate (5), the bottom side of the vertical plate (5) is fixedly connected with the base (1), a first reciprocating lead screw (6) is arranged above the sliding plate (2), first shaft seats (7) are respectively installed at two ends of the periphery of the first reciprocating lead screw (6) in a bearing mode, the first shaft seats (7) are respectively connected with the sliding plate (2), a coaxial worm wheel (8) is fixedly installed at the rear end of the first reciprocating lead screw (6), a first nut (9) is installed in the middle of the periphery of the first reciprocating, the other end of the telescopic rod (10) is fixedly connected with one side of the periphery of the vertical shaft (11), the lower end of the vertical shaft (11) is connected with a top side bearing of the base (1), the upper end of the vertical shaft (11) is fixedly provided with the double-shaft motor (12), the left end of an output shaft of the double-shaft motor (12) is fixedly provided with the fan blade (26), the right end of the output shaft of the double-shaft motor (12) is fixedly connected with one end of the telescopic universal coupling (13), the other end of the telescopic universal coupling (13) is fixedly connected with one end of the gear column (14), one end of the periphery of the gear column (14) is provided with the second shaft seat (15) in a bearing mode, and the second shaft seat (15) is fixedly; a worm (17) is arranged on the top side of the worm wheel (8), the worm wheel (8) is meshed and matched with the worm (17), a bearing at one end of the worm (17) is connected with the left side of the supporting plate (18), the bottom side of the supporting plate (18) is connected with the top side of the sliding plate (2), a coaxial gear (19) is fixedly installed at the other end of the worm (17), the gear (19) is in gear transmission fit with the gear column (14) through a transmission gear (20), and the transmission gear (20) is rotationally connected with the supporting plate (18); a second reciprocating lead screw (21) is arranged on the top side of the sliding plate (2), a third shaft seat (22) is respectively arranged at two ends of the periphery of the second reciprocating lead screw (21) in a bearing mode, the third shaft seats (22) are respectively and fixedly connected with the sliding plate (2), a second nut (23) is arranged on the periphery of the second reciprocating lead screw (21) in a matched mode, transverse plates (24) are respectively and fixedly arranged on the top side and the bottom side of the second nut (23), the first shaft seat (7) is respectively and fixedly connected with the transverse plate (24) on the upper side, the bottom side of the supporting plate (18) is fixedly connected with the transverse plate (24) on the upper side, the bottom side of the transverse plate (24) on the lower side is in sliding contact and matched with the top side of the sliding plate (2), and the gear column (14) is in; the transmission device (25) comprises a transverse shaft (251), the left end of the transverse shaft (251) is fixedly connected with the right end of a gear column (14), the transverse shaft (251) is collinear with the central line of the gear column (14), a first helical gear (252) is fixedly installed at the right end of the transverse shaft (251) after penetrating through a preformed hole at the right side of a support plate (18), a screw nut (253) is arranged at the right side of the top side of a sliding plate (2), the screw nut (253) is fixedly connected with the sliding plate (2), a bolt (254) is installed in the screw nut (253) in a threaded manner, a left end bearing of the bolt (254) is connected with one side of the periphery of a sleeve (255), a coaxial short shaft (256) is installed in the sleeve (255) in a bearing manner, a coaxial second helical gear (257) is respectively and fixedly installed at two ends of the short shaft (256), a third helical gear (258) is fixedly installed at the right side of the periphery of a second reciprocating screw rod (21), and, the sleeve (255) is fixedly connected with the screw nut (253) through a plurality of small telescopic rods (259).
2. The stepless angle-variable oscillating device applied to the electric fan according to claim 1 is characterized in that: the middle bearing on the right side of the first bevel gear (252) is connected with one end of a second inverted L-shaped rod (27), and the other end of the second inverted L-shaped rod (27) is fixedly connected with a screw nut (253).
3. The stepless angle-variable oscillating device applied to the electric fan according to claim 1 is characterized in that: the middle bearing on the right side of the transmission gear (20) is connected with one end of a supporting rod (28), and the other end of the supporting rod (28) is fixedly connected with the supporting plate (18).
4. The stepless angle-variable oscillating device applied to the electric fan according to claim 1 is characterized in that: and hand wheels (29) are fixedly arranged at the right ends of the screw rod (4) and the bolt (254) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910958848.8A CN110630546B (en) | 2019-10-10 | 2019-10-10 | Stepless angle-variable oscillating device applied to electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910958848.8A CN110630546B (en) | 2019-10-10 | 2019-10-10 | Stepless angle-variable oscillating device applied to electric fan |
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| CN110630546A CN110630546A (en) | 2019-12-31 |
| CN110630546B true CN110630546B (en) | 2020-12-25 |
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| CN201910958848.8A Active CN110630546B (en) | 2019-10-10 | 2019-10-10 | Stepless angle-variable oscillating device applied to electric fan |
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| CN2340960Y (en) * | 1998-06-10 | 1999-09-29 | 王顺泉 | Oscillating electric fan with stepless position |
| CN103244444A (en) * | 2013-04-19 | 2013-08-14 | 常州大学 | Spatial fan oscillating mechanism |
| CN108252940A (en) * | 2018-03-22 | 2018-07-06 | 刘斌风 | A kind of driving motor of electric fan |
| CN208804029U (en) * | 2018-09-20 | 2019-04-30 | 无锡职业技术学院 | A kind of automatic debugging fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201215098Y (en) * | 2008-07-08 | 2009-04-01 | 刘马宗 | Swinging angle adjustable electric fan |
| CN101749263A (en) * | 2008-12-19 | 2010-06-23 | 何昌胜 | Fan with rotating angle capable of being arbitrarily adjusted |
| CN201420700Y (en) * | 2009-04-21 | 2010-03-10 | 刘马宗 | Improved adjustable oscillation-angle electric fan |
| CN108547785A (en) * | 2018-06-25 | 2018-09-18 | 浙江理工大学 | A kind of adjustable electric fan of swing angle |
| CN208503089U (en) * | 2018-07-13 | 2019-02-15 | 武汉大学人民医院（湖北省人民医院） | A kind of desk fan head-shaking device of angle adjustable |
| CN109210018A (en) * | 2018-09-25 | 2019-01-15 | 合肥图腾龙企业管理事务所（有限合伙） | A kind of energy saving and environment friendly fan of outdoor use |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2340960Y (en) * | 1998-06-10 | 1999-09-29 | 王顺泉 | Oscillating electric fan with stepless position |
| CN103244444A (en) * | 2013-04-19 | 2013-08-14 | 常州大学 | Spatial fan oscillating mechanism |
| CN108252940A (en) * | 2018-03-22 | 2018-07-06 | 刘斌风 | A kind of driving motor of electric fan |
| CN208804029U (en) * | 2018-09-20 | 2019-04-30 | 无锡职业技术学院 | A kind of automatic debugging fan |
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