CN101424272A

CN101424272A - Fan

Info

Publication number: CN101424272A
Application number: CNA2008102188607A
Authority: CN
Inventors: 田畴
Original assignee: Guangdong Kennede Electronics Manufacturing Co Ltd
Current assignee: Guangdong Kennede Electronics Manufacturing Co Ltd
Priority date: 2008-10-28
Filing date: 2008-10-28
Publication date: 2009-05-06
Anticipated expiration: 2028-10-28
Also published as: CN101424272B

Abstract

The invention discloses a fan. The fan comprises a base, a fixed bracket arranged on the base, and fan blades and a fan cover which are positioned in the front end of the fan, and a front cover plate and a rear shell which are positioned in the rear end of the fan, a motor set arranged inside the front cover plate and the rear shell, a fan head swinging device and a head swinging switch device; a control switch button of the head swinging switch device is arranged on the rear surface of the rear shell; as the control switch button of the fan head swinging device is arranged on the rear surface of the rear shell, the fan has attractive appearance and can also prevent dust; the matched structure of the head swinging device inside the fan is compact, novel, reasonable and simple in manufacturing so that the fan is durable and has attractive appearance and wide practicability.

Description

A kind of fan

Technical field

The present invention relates to a kind of fan, particularly a kind of yaw switch is arranged at the fan at rear.

Background technique

Fan on the market all has the yaw function at present, generally comprise base, be installed on the fixed support on the base, be positioned at the flabellum of fan front end, the fan cover, be positioned at the rear case of fan cover rear end, be installed on groups of motors and oscillating fan device in the rear case, wherein, the switch of control yaw device swing all is installed on the rear case top, and by pulling on or depress switch is controlled the yaw of fan, its basic principle is that the part in switch stretches into rear case connects the yaw device, and is connected with an engaging and disengaging gear endways, this engaging and disengaging gear can be connected or separate with groups of motors by gear, when switch was depressed, engaging and disengaging gear was connected with motor by gear, and by gear transmission the rotation of motor was converted to the vertical rotation of switch, connect the swing that oscillator device is converted to fan by gear again, after the switch pull-up, engaging and disengaging gear separates with groups of motors, makes that fan is static can not swing.The switch that is arranged at the rear case top is unfavorable for the attractive in appearance of fan integral body, and make that easily dust enters, and when oscillating fan, because the gear that is connected with switch adopts the one-level transmission directly to be connected with motor, can make switch along with revolution rotation together, make switch and swing element damage inefficacy easily, be unfavorable for the permanent use of fan.

Summary of the invention

For addressing the above problem, it is more reasonable to the invention provides a kind of oscillating head mechanism setting, and swing element is durable in use, and the fan of beautiful shape.

The technological scheme that the present invention is adopted for its technical problem of solution is:

A kind of fan, comprise base, be installed on the fixed support on the base, be positioned at flabellum, the fan cover of fan front end, be positioned at the rear case of fan cover rear end, be installed on groups of motors, oscillating fan device and yaw switch gear in the rear case, the control switch button of described yaw switch gear is installed on the rear surface of rear case.

Further improvement as such scheme, described yaw switch gear is the secondary driving mechanism, comprise: the secondary drive link that is horizontally installed in rear case inside, secondary drive link front portion is connected with the output worm drive of groups of motors by engaging and disengaging gear, the rear portion is by the gear train oscillating fan device that is in transmission connection, described control switch button is a knob, and the knob front end is provided with the driving lever that control clutch device is opened or closed.

Further improvement as such scheme, described engaging and disengaging gear comprises that flip sleeve places the clutch drive plate on the secondary drive link, clutch drive plate and secondary drive link are circumferentially fixing, on the secondary drive link, be set with gear free to rotate in abutting connection with the clutch drive plate, described gear is equipped with the Ka Tai that can engage mutually with the abutting end of clutch drive plate, described gear transmission connects the output worm screw of its top groups of motors, secondary drive link rear portion is provided with the transmission worm screw, the corresponding gear that is meshed with the transmission worm screw that is provided with of oscillating fan device.

As the further improvement of such scheme, described clutch drive plate end is a disc structure, and knob stretches into adjacent two nose bars of driving lever for being provided with along the knob circumference of rear case inside, and clutch drive plate end disc is installed in two nose bar inboards; The knob outside is provided with corresponding rotation sign with the rear case rear side.

As the further improvement of such scheme, described secondary drive link is provided with the key body, and Zhou Xiangying is provided with keyway in the clutch drive plate.

As the further improvement of such scheme, gear-box is equipped with in described rear case inside, and secondary drive link middle part is provided with fulcrum, and described fulcrum is installed in the gear-box, and described gear-box front end is nested with groups of motors, and the below is supported by the oscillating fan device.

Further improvement as such scheme, described oscillating fan device comprises the yaw support that is installed on the fixed support, yaw support side is connected with a drive link, the drive link the other end is connected with the yaw coupling component is eccentric, and yaw coupling component top is provided with the gear train that is in transmission connection with the secondary drive link.

Further improvement as such scheme, described gear train comprises the axle that is connected with the yaw coupling component, spring part is equipped with in described axle inside, the spring part end is provided with steel ball, described spring part clamps with the geared sleeve in the axle outside with steel ball and is connected, the described geared sleeve outside is in transmission connection with the secondary drive link of yaw switch gear, and the inner circumference side annular face is provided with protruding draw-in groove vertically, and the steel ball at protruding draw-in groove and spring part two ends clamps and be circumferentially fixing with axle.

The invention has the beneficial effects as follows: the control switch button of the yaw switch gear of fan of the present invention is arranged at the rear case rear side, beautiful shape not only, but also can prevent dust, in addition, adopt the secondary transmission to make that the cooperating structure of its internal pendulum head unit is more reasonable, inner gear-box makes element that compactness is set, the stress balance of element when the rotation of motor is transmitted to the swing of fan, and when fan was swung, external switch can not reduce wearing and tearing along with rotation; Fan structure of the present invention is new reasonable, simple, the durable in use and beautiful shape of manufacturing, and practicability is widely arranged.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples:

Fig. 1 is a perspective view of the present invention;

Fig. 2 is the mounting structure schematic representation in the fan rear case;

Fig. 3 is the fractionation schematic representation of rear case internal structure;

The structural representation that Fig. 4 closes for the yaw switch gear;

The structural representation that Fig. 5 opens for the yaw switch gear.

Embodiment

With reference to Fig. 1～Fig. 3, a kind of fan, comprise base 1, be installed on the fixed support 2 on the base 1, be positioned at flabellum 3, the fan cover 4 of fan front end, be positioned at the rear case 5 of fan cover 4 rear ends, be installed on groups of motors 6, oscillating fan device 7 and yaw switch gear 8 in the rear case 5, the control switch button of described yaw switch gear 8 is installed on the rear surface of rear case 5.

As optimal way of the present invention, described yaw switch gear is the secondary driving mechanism, comprise: the secondary drive link 83 that is horizontally installed in rear case 5 inside, the worm screw 61 that rotate by the output of engaging and disengaging gear and groups of motors 6 secondary drive link 83 front portions is in transmission connection, the rear portion drives by gear train and connects oscillating fan device 7, described control switch button is a knob 81, and knob 81 front ends are provided with the driving lever 811 that control clutch device is opened or closed.

Wherein, as optimal way, described engaging and disengaging gear comprises that flip sleeve is located at the clutch drive plate 82 on the secondary drive link 83, clutch drive plate 82 is circumferentially fixing with secondary drive link 83, on secondary drive link 83, be set with gear free to rotate 84 in abutting connection with clutch drive plate 82, gear 84 is equipped with the Ka Tai that can engage mutually with the abutting end of clutch drive plate 82, described gear 84 be in transmission connection its top groups of motors 6 output worm screw 61, and when groups of motors 6 work, rotate along with exporting worm screw 61, secondary drive link 83 rear portions are provided with transmission worm screw 831, and described transmission worm screw 831 is in transmission connection with oscillating fan device 7.

Wherein, the preferred described clutch drive plate of the present invention 82 ends are disc structure, knob 81 stretches into adjacent two nose bars of driving lever 811 for being provided with along knob 81 circumference of rear case 5 inside, and clutch drive plate 82 end disc are installed in two nose bar inboards, when turning knob 81, driving lever 811 can be stirred clutch drive plate 82 and slide along secondary drive link 83; In addition, use, be provided with corresponding rotation sign, the enable possition and the closed position of the corresponding oscillating fan of mark respectively in knob 81 outsides and rear case 5 rear sides for convenient.

In addition, as optimal way, the symmetrical vertically side of described secondary drive link 83 is raised with the key body, all sides are provided with the keyway that cooperates secondary drive link 83 to be healthy and strong in the clutch drive plate 82, be healthy and strong with keyway can be circumferentially fixedly clutch drive plate 82 and secondary drive link 83, and can make clutch drive plate 82 on secondary drive link 83, slide.

Yaw switch gear 8 of the present invention can directly be installed on rear case 5 inside, as optimal way, the present invention is equipped with gear-box 9 in rear case 5 inside, fulcrum 91 is equipped with in described gear-box 9 inside, above-mentioned secondary drive link 83 is set on the fulcrum 91, fulcrum 91 can use metallic material, so that increase support strength; Gear-box 9 front ends are nested with groups of motors 6, and the below is supported by yaw device 7; Also case lid 92 can be set also above gear-box, gear-box 9 can cooperate also with case lid 92 and can play dustproof effect so that the installation of the element of yaw switch gear 8 and oscillating fan device 7 is more concentrated.

As optimal way of the present invention, described oscillating fan device 7 comprises the yaw support 71 that is installed on the fixed support 2, yaw support 71 sides are connected with a drive link 72, drive link 72 the other ends and 73 eccentric connections of yaw coupling component, yaw coupling component 73 tops are provided with the gear train 74 that is in transmission connection with secondary drive link 83.

Wherein, described gear train 74 comprises the axle 741 that is connected with yaw coupling component 73, and wherein, yaw coupling component 73 inboards are the square main body of square cooperation axle 741 lower ends, makes both circumferentially fixing; Spring part 742 is equipped with in described axle 741 inside, spring part 742 ends are provided with steel ball 743, described spring part 742 clamps with the geared sleeve 744 that is sleeved on axle 741 outsides with steel ball 743 and is connected, the secondary drive link 83 of described geared sleeve 744 outsides and yaw switch gear 8 is in transmission connection, the inner circumference side annular face is provided with protruding draw-in groove vertically, and the steel ball 743 at protruding draw-in groove and spring part 742 two ends clamps and be circumferentially fixing with axle 741.

In addition, handle 51 can also be set to be convenient to mobile fan above rear case 5.

Certainly; protection scope of the present invention is not confined to this; above-mentioned is preferred implementation of the present invention; in addition; fan of the present invention can be desk fan, vertical fan etc.; so long as the control switch button of the switch gear of control yaw is installed on the fan of rear case 5 rear surfaces, all belong to protection scope of the present invention.

With reference to Fig. 4, the structure of the secondary transmission that the present invention preferably adopts, the mode of the yaw of its control fan is: when fan work, yaw by knob 81 control fans, turning knob 81, then the driving lever 811 of knob 81 will move to the inside, flip sleeve places the clutch drive plate 82 on the secondary drive link 83 to be subjected to driving lever 811 compressings of knob 81, to secondary drive link 83 inner slide, and engage with the end of gear 84, make that gear 84 and secondary drive link 83 are circumferentially fixing, this moment, gear 84 was passed through in the rotation of groups of motors 6, the combination of secondary drive link 83 is delivered to the gear train 74 of oscillating fan device 7, thereby drives whole fan rotary head.

In addition, oscillating fan device 7 also has overload protection function, its principle is: stop if be subjected to external force when oscillating fan, then the spring part 742 in the gear train 74 can suffer oppression to axle 741 inboard compression with the combination of steel ball 743, it is circumferentially fixing to make that geared sleeve 744 and axle 741 break away from, this moment, geared sleeve 744 dallied on axle 741, thereby played buffering and overload protective function; After losing external force, spring part 742 resets with steel ball 743 and snaps in the draw-in groove of geared sleeve 744 inboards, make that geared sleeve 744 and axle 741 are circumferentially fixing, thereby rotation is passed to yaw coupling component 73, and by the cooperate yaw of realizing fan of the yaw coupling component 73 eccentric drive link 72 that connect with yaw support 71.

With reference to Fig. 5, if will stop yaw, then the reverse rotation knob 81, stir clutch drive plate 82 outwards slip and disengaging gear 84 by driving lever 811, gear 84 is still separated with gear 84 by clutch rolling disc 82 still by groups of motors 6 driven rotary at this moment, makes gear 84 and secondary drive link 83 circumferentially lose fixing, therefore gear 84 can only dally on secondary drive link 83, and oscillating fan device 7 runs out of steam and stopped the yaw of fan.

Claims

1, a kind of fan, comprise base (1), be installed on the fixed support (2) on the base (1), be positioned at flabellum (3), the fan cover (4) of fan front end, be positioned at the rear case (5) of fan cover (4) rear end, be installed on groups of motors (6), oscillating fan device (7) and yaw switch gear (8) in the rear case (5), it is characterized in that: the control switch button of described yaw switch gear (8) is installed on the rear surface of rear case (5).

2, a kind of fan according to claim 1, its spy really is: described yaw switch gear is the secondary driving mechanism, comprise: be horizontally installed in the inner secondary drive link (83) of rear case (5), the anterior output worm screw (61) by engaging and disengaging gear and groups of motors (6) of secondary drive link (83) is in transmission connection, the rear portion drives by gear train and connects oscillating fan device (7), described control switch button is knob (81), and knob (81) front end is provided with the driving lever (811) that control clutch device is opened or closed.

3, a kind of fan according to claim 2, it is characterized in that: described engaging and disengaging gear comprises that flip sleeve is located at the clutch drive plate (82) on the secondary drive link (83), clutch drive plate (82) is circumferentially fixing with secondary drive link (83), upward be set with gear free to rotate (84) at secondary drive link (83) in abutting connection with clutch drive plate (82), described gear (84) is equipped with the Ka Tai that can engage mutually with the abutting end of clutch drive plate (82), described gear (84) be in transmission connection its top groups of motors (6) output worm screw (61), secondary drive link (83) rear portion is provided with transmission worm screw (831), the corresponding gear that is meshed with transmission worm screw (831) that is provided with of oscillating fan device (7).

4, a kind of fan according to claim 3, it is characterized in that: described clutch drive plate (82) end is a disc structure, knob (81) stretches into the two adjacent nose bars of the inner driving lever (811) of rear case (5) for being provided with along knob (81) circumference, and clutch drive plate (82) end disc is installed in two nose bar inboards; Knob (81) outer surface and rear case (5) rear side surface are provided with and rotate sign.

5, a kind of fan according to claim 3 is characterized in that: described secondary drive link is provided with the key body, the corresponding keyway that is provided with of all sides in the clutch drive plate (82).

6, according to claim 2,3,4 or 5 described a kind of fans, it is characterized in that: gear-box (9) is equipped with in described rear case (5) inside, secondary drive link (83) middle part is provided with fulcrum (91), described fulcrum (91) is installed in the gear-box (9), described gear-box (9) front end is nested with groups of motors (6), and the below is supported by oscillating fan device (7).

7, a kind of fan according to claim 6 is characterized in that: described gear-box (9) top is provided with case lid (92).

8, according to the described a kind of fan of arbitrary claim in the claim 1 to 5, it is characterized in that: described oscillating fan device (7) comprises the yaw support (71) that is installed on the fixed support (2), yaw support (71) side is connected with a drive link (72), drive link (72) the other end is connected with yaw coupling component (73) is eccentric, and yaw coupling component (73) top is provided with the gear train (74) that is in transmission connection with secondary drive link (83).

9, a kind of fan according to claim 8, it is characterized in that: described gear train (74) comprises the axle (741) that is connected with yaw coupling component (73), spring part (742) is equipped with in described axle (741) inside, spring part (742) end is provided with steel ball (743), described spring part (742) clamps with the geared sleeve (744) that is sleeved on axle (741) outside with steel ball (743) and is connected, described geared sleeve (744) outside is in transmission connection with the secondary drive link (83) of yaw switch gear (8), the inner circumference side annular face is provided with protruding draw-in groove vertically, and the steel ball (743) at protruding draw-in groove and spring part (742) two ends clamps and be circumferentially fixing with axle (741).

10, a kind of fan according to claim 1 is characterized in that: described rear case (5) top is provided with handle (51).