CN112483446A - Fan with adjustable fan blade angle - Google Patents

Abstract

The invention provides a fan with adjustable fan blade angles, which comprises a shell, a motor, a rotary table, a plurality of fan blades, a plurality of rotary rods and an angle adjusting device, wherein the motor is arranged in the shell, the rotary table is arranged on a rotary shaft of the motor, a plurality of openings are formed in the periphery of the rotary table in a surrounding manner, the rotary rods are inserted in the openings and can rotate relative to the rotary table, the fan blades are fixed on the rotary rods, the angle adjusting device is fixed on the rotary table, and the angle adjusting device can push the fan blades to rotate.

Description

Fan with adjustable fan blade angle

Technical Field

The invention relates to the field of fans, in particular to a fan with an adjustable fan blade angle.

Background

The electric fan is an electric device which utilizes the motor to drive the fan blades to rotate so as to achieve air circulation, is mainly applied to heat dissipation and air circulation, is widely applied to places such as families, offices, shops, hospitals and the like, and provides great convenience for work and life of people.

Machines of different types and models have different requirements for heat dissipation, and fans with different performances are needed. The blades and the hub of the existing heat dissipation fan are integrally formed, so that the inclination angle of the blades of the finished heat dissipation fan relative to the axis of the hub is certain, namely the air outlet direction, the air volume and the air pressure of the fan cannot be adjusted. Therefore, the fan is difficult to adjust the air outlet direction, the air volume and the air pressure according to different requirements, and the compatibility is poor.

Disclosure of Invention

In view of the above, the present invention provides a fan with adjustable blade angle to overcome the defect of non-adjustable blade angle of the existing fan.

The technical scheme of the invention is realized as follows: the invention provides a fan blade angle-adjustable fan which comprises a shell, a motor, a rotary table, a plurality of fan blades, a plurality of rotary rods and an angle adjusting device, wherein the motor is arranged in the shell, the rotary table is arranged on a rotary shaft of the motor, a plurality of openings are formed in the periphery of the rotary table in a surrounding manner, the rotary rods are inserted in the openings and can rotate relative to the rotary table, the fan blades are fixed on the rotary rods, the angle adjusting device is fixed on the rotary table, and the angle adjusting device can push the fan blades to rotate.

On the basis of above technical scheme, it is preferred, angle adjusting device includes servo motor, fixed disk and solid fixed ring, servo motor is fixed in carousel centre of a circle department, and on the fixed disk was fixed in the servo motor pivot, servo motor can drive the fixed disk and rotate, gu fixed ring is fixed in on the carousel lateral wall, encircle along the centre of a circle on the fixed disk lateral wall and seted up a plurality of first recesses, gu correspond on the fixed ring and seted up a plurality of second recesses, the flabellum both ends are inserted and are located first recess and second recess in, and the fixed disk rotation can drive the flabellum and rotate around the rotary rod.

Further preferably, the angle adjusting device further comprises a plurality of first fixing blocks, a plurality of second fixing blocks, a plurality of third fixing blocks and a plurality of fourth fixing blocks, the first fixing blocks and the second fixing blocks are arranged in the first grooves, the third fixing blocks and the fourth fixing blocks are arranged in the second grooves, the first fixing blocks and the second fixing blocks are located on two sides of the fan blades, the third fixing blocks and the fourth fixing blocks are located on two sides of the fan blades, and the first fixing blocks, the second fixing blocks, the third fixing blocks and the fourth fixing blocks are made of rubber.

Preferably, the cross sections of the first fixing block, the second fixing block, the third fixing block and the fourth fixing block close to the fan blades are arc-shaped.

Further preferred, first fixed block has first inclined plane, and the second fixed block has the second inclined plane, and the third fixed block has the third inclined plane, and the fourth fixed block has the fourth inclined plane, the rotary rod is kept away from with the intersection line of flabellum on first inclined plane and second inclined plane, the intersection line of third inclined plane and fourth inclined plane and flabellum is close to the rotary rod, distance between first inclined plane and the second inclined plane is less than the distance between third inclined plane and the fourth inclined plane, first inclined plane is parallel with the third inclined plane, the second inclined plane is parallel with the fourth inclined plane, and distance between third inclined plane place plane and the rotary rod is unanimous with the distance that the rotary rod is close to the planar place of terminal surface on one side of the third inclined plane to the flabellum, and distance between fourth inclined plane place plane and the rotary rod is unanimous with the distance that the terminal surface place of flabellum is close to one side of the fourth.

More preferably, the included angle between the first inclined plane and the end surface of the fixed disk is 5 to 45 degrees, and the included angle between the second inclined plane and the end surface of the fixed disk is 5 to 45 degrees.

Still further preferably, an included angle between the first inclined surface and the end surface of the fixed disk is 15 °, and an included angle between the second inclined surface and the end surface of the fixed disk is 15 °.

Further preferably, the first fixing block and the second fixing block are detachably fixed on the fixing disc, and the third fixing block and the fourth fixing block are detachably fixed on the rotating disc.

On the basis of the technical scheme, the motor support device further comprises a support mechanism and a base, the support mechanism is arranged at the top of the base, and the motor and the shell are arranged on the support mechanism.

Further preferably, the supporting mechanism comprises a fixing rod, a sleeve and a bolt, the fixing rod is fixed on the base, the sleeve is sleeved on the fixing rod, the motor and the shell are both arranged on the sleeve, a threaded hole is formed in the sleeve, and the bolt is located in the threaded hole and is abutted to the fixing rod.

Compared with the prior art, the fan with the adjustable fan blade angle has the following beneficial effects:

(1) the fan blade angle adjusting device can push the fan blades to rotate by arranging the plurality of rotary rods and the angle adjusting device, so that the defect that the angle of the fan blades of the existing fan is not adjustable is overcome;

(2) through setting up servo motor, fixed disk and solid fixed ring, encircle along the centre of a circle and seted up a plurality of first recesses on the fixed disk lateral wall, gu correspond on the fixed ring and seted up a plurality of second recesses, the flabellum both ends are inserted and are located first recess and second recess in, rotate through the fixed disk and can drive the flabellum and rotate around the rotary rod. In the scheme, the fan blades are fixed with the fixed disk, and the fixed ring is used for limiting the fan blades so as to prevent the fan blades from rotating excessively;

(3) through making first fixed block have first inclined plane, the second fixed block has the second inclined plane, and the third fixed block has the third inclined plane, and the fourth fixed block has the fourth inclined plane, the rotary rod is kept away from to the intersection of first inclined plane and second inclined plane and flabellum, the intersection of third inclined plane and fourth inclined plane and flabellum is close to the rotary rod, distance between first inclined plane and the second inclined plane is less than the distance between third inclined plane and the fourth inclined plane, first inclined plane is parallel with the third inclined plane, the second inclined plane is parallel with the fourth inclined plane, and the distance between third inclined plane place plane and rotary rod and the distance that the rotary rod reaches the planar distance that the flabellum is close to the terminal surface of third inclined plane one side are unanimous, and distance between fourth inclined place plane and rotary rod and the distance that the rotary rod reaches the planar distance that the flabellum is close to the terminal surface of fourth inclined plane one side are unanimous, so, can make the flabellum paste first inclined plane and fourth inclined plane when inconsistent with first fixed block and additionally, when the fan blade is abutted against the second fixed block and the third fixed block, the fan blade is attached to the second inclined plane and the third inclined plane, so that the fan blade is more firmly fixed, and the abutting of opposite points can prevent the fan blade from being broken off when rotating at high speed;

(4) can dismantle through with first fixed block and second fixed block and be fixed in on the fixed disk, can dismantle third fixed block and fourth fixed block and be fixed in on the carousel, so can need to be changed first fixed block, second fixed block, third fixed block and fourth fixed block according to the angle modulation to realize the regulation of different angles.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a fan with adjustable fan blade angles according to the present invention;

FIG. 2 is a schematic perspective view of a turntable of a fan with adjustable fan blade angles according to the present invention;

FIG. 3 is a schematic perspective view of a servo motor of the fan with adjustable fan blade angles according to the present invention;

FIG. 4 is a schematic perspective view of an angle adjustment device of a fan with adjustable fan blade angles according to the present invention;

fig. 5 is a schematic perspective view of a first fixing block, a second fixing block, a third fixing block, and a fourth fixing block of the fan with adjustable fan blade angles according to the present invention;

fig. 6 is an enlarged view of a portion a in fig. 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, with reference to fig. 2-6, an embodiment of the present invention discloses a fan with an adjustable fan blade angle, which includes a housing 1, a motor 2, a turntable 3, a plurality of fan blades 4, a plurality of rotating rods 5, an angle adjusting device 6, a supporting mechanism 7, and a base 8.

The housing 1 is used to protect the internal devices of the fan. The fan with the adjustable fan blade angle can be a small fan without a base or a large fan with the base.

The motor 2 and the turntable 3 are used to rotate the fan blades 4. Specifically, the motor 2 is arranged in the shell 1, and the turntable 3 is arranged on a rotating shaft of the motor 2.

The fan blades 4 are used for supplying air by rotation.

The rotating rod 5 is used for making the angle of the fan blade 4 adjustable. Specifically, a plurality of openings are arranged around the periphery of the rotary table 3, the rotary rod 5 is inserted into the openings, the rotary rod 5 can rotate relative to the rotary table 3, and the fan blades 4 are fixed on the rotary rod 5.

The angle adjustment device 6 is used to rotate the fan blade 4. The angle adjusting device 6 is fixed on the rotary table 3, and the angle adjusting device 6 can push the fan blades 4 to rotate. The angle adjusting device 6 can be a linear module, a linear motor, etc., and the telescopic end thereof is fixed on the fan blade 4 to push the fan blade 4 to rotate.

In order to make a fan with adjustable fan blade angle can drive all fan blades 4 to rotate by a power source. More specifically, angle adjusting device 6 includes servo motor 61, fixed disk 62 and solid fixed ring 63, servo motor 61 is fixed in 3 centre of a circle departments of carousel, and fixed disk 62 is fixed in servo motor 61 and rotates in the pivot, and servo motor 61 can drive fixed disk 62 and rotate, gu fixed ring 63 is fixed in on 3 lateral walls of carousel, encircle along the centre of a circle on the 62 lateral wall of fixed disk and seted up a plurality of first recesses 621, gu correspond on the fixed ring 63 and seted up a plurality of second recesses 631, 4 both ends of flabellum are inserted and are located in first recess 621 and second recess 631, and fixed disk 62 rotates and can drive flabellum 4 and rotate around rotary rod 5. Make fixed disk 62 rotate through servo motor 61 round trip to rotate, and then drive flabellum 4 and rotate around rotary rod 5, flabellum 4 is fixed with fixed disk 62 in this scheme, and solid fixed ring 63 is used for spacing flabellum 4, prevents that flabellum 4 from rotating excessively.

Because the flabellum receives pressure great at the in-process of high-speed rotation, flabellum 4 is fixed with fixed disk 62, and because servo motor 61 is less according to the design of fan size demand, easily lead to a series of problems such as fixed disk 62 and servo motor 61 pivot department fracture after using a period, consequently need use fixed disk 62 and solid fixed ring 63 to contradict jointly to fix flabellum 4. More specifically, the angle adjusting device 6 further includes a plurality of first fixing blocks 64, a plurality of second fixing blocks 65, a plurality of third fixing blocks 66, and a plurality of fourth fixing blocks 67, the first fixing blocks 64 and the second fixing blocks 65 are disposed in the first grooves 621, the third fixing blocks 66 and the fourth fixing blocks 67 are disposed in the second grooves 631, the first fixing blocks 64 and the second fixing blocks 65 are disposed on both sides of the fan blades 4, the third fixing blocks 66 and the fourth fixing blocks 67 are disposed on both sides of the fan blades, and the first fixing blocks 64, the second fixing blocks 65, the third fixing blocks 66, and the fourth fixing blocks 67 are made of rubber. In this scheme, through rotatory fixed disk 62, flabellum 4 can be inconsistent with first fixed block 64 and fourth fixed block 67, perhaps flabellum 4 is inconsistent with second fixed block 65 and third fixed block 66 to this realizes that fixed disk 62 and solid fixed ring 63 conflict fixedly to flabellum 4 jointly, can realize the regulation of flabellum 4 at two angles simultaneously, for increase frictional force and prevent flabellum 4 surface damage, first fixed block 64, second fixed block 65, third fixed block 66 and fourth fixed block 67 are made for rubber.

In order to prevent the surface of the fan blade 4 from being damaged, more specifically, the cross sections of the first fixing block 64, the second fixing block 65, the third fixing block 66 and the fourth fixing block 67 close to the end of the fan blade 4 are arc-shaped.

To make the fan blade 4 firmly pressed against and fixed. More specifically, the first fixing block 64 has a first inclined surface 641, the second fixing block 65 has a second inclined surface 651, the third fixing block 66 has a third inclined surface 661, the fourth fixing block 67 has a fourth inclined surface 671, the intersection lines of the first inclined plane 641 and the second inclined plane 651 with the fan blade 4 are far away from the rotating rod 5, the intersection lines of the third inclined surface 661 and the fourth inclined surface 671 and the fan blade 4 are close to the rotating rod 5, the distance between the first inclined surface 641 and the second inclined surface 651 is smaller than the distance between the third inclined surface 661 and the fourth inclined surface 671, the first inclined surface 641 is parallel to the third inclined surface 661, the second inclined surface 651 is parallel to the fourth inclined surface 671, the distance between the plane of the third inclined surface 661 and the rotating rod 5 is the same as the distance between the rotating rod 5 and the plane of the end surface of the fan blade 4 close to the third inclined surface 661, and the distance between the plane of the fourth inclined surface 671 and the rotating rod 5 is the same as the distance between the rotating rod 5 and the plane of the end surface of the fan blade 4 close to the fourth inclined surface 671. Thus, the fan blade 4 can be attached to the first inclined surface 641 and the fourth inclined surface 671 when the fan blade 4 abuts against the first fixing block 64 and the fourth fixing block 67, and the fan blade 4 can be attached to the second inclined surface 651 and the third inclined surface 661 when the fan blade 4 abuts against the second fixing block 65 and the third fixing block 66, so that the fan blade 4 can be fixed more firmly, and the abutting of opposite points can prevent the fan blade 4 from being broken when rotating at high speed.

To make the air-out effect of the fan blade better. More specifically, the included angle between the first inclined surface 641 and the end surface of the fixed disk 62 is 5 ° to 45 °, and the included angle between the second inclined surface 651 and the end surface of the fixed disk 62 is 5 ° to 45 °.

Preferably, an included angle between the first inclined surface 641 and the end surface of the fixed disk 62 is 15 °, and an included angle between the second inclined surface 651 and the end surface of the fixed disk 62 is 15 °. Through rotating flabellum 4, can form two kinds of angles of positive and negative 15, the air-out angle of so adjustable fan, amount of wind and wind pressure are also comparatively suitable simultaneously.

To achieve adjustment of different angles. The first fixing block 64 and the second fixing block 65 are detachably fixed on the fixing disc 62, and the third fixing block 66 and the fourth fixing block 67 are detachably fixed on the rotary disc 3. So can need to change first fixed block 64, second fixed block 65, third fixed block 66 and fourth fixed block 67 according to the angle modulation needs to realize the regulation of different angles, be used for changing the air-out angle, amount of wind and the wind pressure of fan. In the actual use process, the requirements can be met only by adjusting two angles, and the optimal angle option is difficult to select instead of selecting too many angle adjustment options. The detachable fixing mode is as follows: threaded holes are formed in the first fixing block 64, the second fixing block 65, the third fixing block 66, the fourth fixing block 67, the fixing disc 62 and the rotary disc 3, and the first fixing block 64, the second fixing block 65, the third fixing block 66 and the fourth fixing block 67 are fixed in the threaded holes of the fixing disc 62 and the rotary disc 3 through bolts.

The support mechanism 7 is used for supporting the motor 2. Specifically, the supporting mechanism 7 is arranged at the top of the base 8, and the motor 2 and the shell 1 are both arranged on the supporting mechanism 7.

To make the fan height adjustable. More specifically, the supporting mechanism 7 includes a fixing rod 71, a sleeve 72 and a bolt 73, the fixing rod 71 is fixed on the base 8, the sleeve 72 is sleeved on the fixing rod 71, the motor 2 and the housing 1 are both disposed on the sleeve 72, a threaded hole is formed in the sleeve 72, and the bolt 73 is located in the threaded hole and is abutted to the fixing rod 71. The fan height can be adjusted by loosening the bolt 73, adjusting the relative position between the fixing rod 71 and the sleeve 72, and then tightening the bolt 73.

The base 8 is used to support the fan.

The working principle of the fan with the fan blades adjustable in angle is as follows: the servo motor 61 is turned on, the fixing disc 62 is rotated back and forth, so that the fan blade 4 is attached to the first inclined surface 641 and the fourth inclined surface 671 when the fan blade 4 abuts against the first fixing block 64 and the fourth fixing block 67, or the fan blade 4 is attached to the second inclined surface 651 and the third inclined surface 661 when the fan blade 4 abuts against the second fixing block 65 and the third fixing block 66, so that the angle adjustment of the fan blade in two directions can be realized, and if the angle is required to be changed, the adjustment of different angles can be realized by replacing the first fixing block 64, the second fixing block 65, the third fixing block 66 and the fourth fixing block 67.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides a flabellum angularly adjustable fan which characterized in that: comprises a shell (1), a motor (2), a turntable (3), a plurality of fan blades (4), a plurality of rotating rods (5) and an angle adjusting device (6);

the motor (2) is arranged in the shell (1), the rotary table (3) is arranged on a rotary shaft of the motor (2), a plurality of openings are formed in the periphery of the rotary table (3) in a surrounding mode, the rotary rod (5) is inserted into the openings, the rotary rod (5) can rotate relative to the rotary table (3), and the fan blades (4) are fixed on the rotary rod (5);

the angle adjusting device (6) is fixed on the rotary table (3), and the angle adjusting device (6) can push the fan blades (4) to rotate.

2. The fan with adjustable fan blade angle of claim 1, wherein: angle adjusting device (6) include servo motor (61), fixed disk (62) and solid fixed ring (63), servo motor (61) are fixed in carousel (3) centre of a circle department, and on fixed disk (62) were fixed in servo motor (61) pivot, servo motor (61) can drive fixed disk (62) and rotate, gu fixed ring (63) are fixed in on carousel (3) lateral wall, encircle along the centre of a circle and seted up a plurality of first recesses (621) on fixed disk (62) lateral wall, gu correspond on fixed ring (63) and seted up a plurality of second recesses (631), flabellum (4) both ends are inserted and are located in first recess (621) and second recess (631), and fixed disk (62) rotate and can drive flabellum (4) and rotate around rotary rod (5).

3. The fan with adjustable fan blade angle of claim 2, wherein: angle adjusting device (6) still include a plurality of first fixed blocks (64), a plurality of second fixed block (65), a plurality of third fixed block (66) and a plurality of fourth fixed block (67), first fixed block (64) and second fixed block (65) set up in first recess (621), third fixed block (66) and fourth fixed block (67) set up in second recess (631), first fixed block (64) and second fixed block (65) are located flabellum (4) both sides, third fixed block (66) and fourth fixed block (67) are located the flabellum both sides, first fixed block (64), second fixed block (65), third fixed block (66) and fourth fixed block (67) are made for rubber.

4. The fan with adjustable fan blade angle of claim 3, wherein: the cross sections of one ends, close to the fan blades (4), of the first fixing block (64), the second fixing block (65), the third fixing block (66) and the fourth fixing block (67) are arc-shaped.

5. The fan with adjustable fan blade angle of claim 3, wherein: the first fixing block (64) is provided with a first inclined surface (641), the second fixing block (65) is provided with a second inclined surface (651), the third fixing block (66) is provided with a third inclined surface (661), the fourth fixing block (67) is provided with a fourth inclined surface (671), the intersection line of the first inclined surface (641) and the second inclined surface (651) and the fan blade (4) is far away from the rotating rod (5), the intersection line of the third inclined surface (661) and the fourth inclined surface (671) and the fan blade (4) is close to the rotating rod (5), the distance between the first inclined surface (641) and the second inclined surface (651) is smaller than the distance between the third inclined surface (661) and the fourth inclined surface (671), the first inclined surface (641) is parallel to the third inclined surface (661), the distance between the plane where the third inclined surface (661) is located and the rotating rod (5) is consistent with the distance between the plane where the rotating rod (5) and the end surface where the side of the fan blade (4) is close to the third inclined surface (661), the distance between the plane of the fourth inclined surface (671) and the rotating rod (5) is consistent with the distance from the rotating rod (5) to the plane of the end surface of the fan blade (4) close to the side of the fourth inclined surface (671).

6. The fan with adjustable fan blade angle of claim 5, wherein: the included angle between the first inclined plane (641) and the end face of the fixed disc (62) is 5-45 degrees, and the included angle between the second inclined plane (651) and the end face of the fixed disc (62) is 5-45 degrees.

7. The fan with adjustable fan blade angle of claim 6, wherein: the included angle between the first inclined plane (641) and the end face of the fixed disc (62) is 15 degrees, and the included angle between the second inclined plane (651) and the end face of the fixed disc (62) is 15 degrees.

8. The fan with adjustable fan blade angle of claim 3, wherein: the first fixing block (64) and the second fixing block (65) are detachably fixed on the fixed disc (62), and the third fixing block (66) and the fourth fixing block (67) are detachably fixed on the rotary disc (3).

9. The fan with adjustable fan blade angle of claim 1, wherein: still include supporting mechanism (7) and base (8), supporting mechanism (7) set up in base (8) top, motor (2) and shell (1) all set up on supporting mechanism (7).

10. The fan with adjustable fan blade angle of claim 9, wherein: the supporting mechanism (7) comprises a fixing rod (71), a sleeve (72) and a bolt (73), the fixing rod (71) is fixed on the base (8), the sleeve (72) is sleeved on the fixing rod (71), the motor (2) and the shell (1) are both arranged on the sleeve (72), a threaded hole is formed in the sleeve (72), and the bolt (73) is located in the threaded hole and is abutted to the fixing rod (71).

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