CN109083856B - Bladeless fan - Google Patents

Abstract

The invention discloses a bladeless fan, comprising: base, fan body, pendulous device. The swing device includes: the fixing mechanism comprises a fixing chassis and a fixing barrel; the rotating mechanism comprises a rotating bearing and a rotating cylinder body; the drive mechanism includes: swing drive division, the drive shaft, the driving gear, driven gear, the both ends of drive shaft respectively with swing drive division's output and driving gear connection, driven gear rotates to locate on the fixed barrel, driven gear has one-level and follows driving wheel and second grade, the driving gear meshes from the driving wheel with driven gear's one-level, has seted up rotatory tooth's socket on the inside wall of rotatory barrel, driven gear's second grade follows driving wheel and rotatory tooth's socket meshing. This bladeless fan can utilize the wobbling mode to carry out angle modulation, and the axis of rotation is parallel with the horizontal plane promptly to increase the control range of wind direction, further improve the performance of product.

Description

Bladeless fan

Technical Field

The invention relates to the technical field of fans, in particular to a bladeless fan.

Background

Prior art 1(CN106224212B) discloses a bladeless fan, comprising: the air conditioner comprises a shell, a fan and a control device, wherein a containing cavity is defined in the shell, a plurality of air inlet holes which are arranged at intervals and communicated with the containing cavity are formed in the shell, and an air outlet is formed in the shell; the three-way pipe is arranged in the accommodating cavity and is provided with a first connector, a second connector and a third connector which are communicated with each other, and the third connector is communicated with the air outlet; the power system is arranged in the accommodating cavity to generate high-pressure airflow; the aircraft nose, the aircraft nose is established on the shell, it has airflow channel just to inject in the aircraft nose the both ends of aircraft nose respectively with first interface with the second interface intercommunication, the aircraft nose have with the air exit that airflow channel switched on. The bladeless fan disclosed by the embodiment of the invention has the advantages of simple structure, uniform air flow movement circulation distribution, convenience in cleaning, no need of disassembly and cleaning, no touch of internal parts by a user, and safety in use.

Prior art 2(CN107299920A) discloses a bladeless fan, including the nozzle and through the runner with the pressure boost subassembly that the nozzle is connected, the bladeless fan still includes rotator, rotating device and pedestal, the nozzle connect in rotator one end, and with the rotator link up, the pedestal is used for supporting the rotator, rotating device drives the rotator winds the pedestal realizes arbitrary angular rotation between 0 degree angle to 360 degrees. The bladeless fan has the characteristics of simple structure, low noise, low cost and the like.

As can be seen from prior art 1, the bladeless fan disclosed herein does not have an angle adjustment function, and due to the structural design, the wind blown by the bladeless fan is in a single direction, which reduces the performance of the product.

As known from prior art 2, the bladeless fan disclosed therein has an angle-adjustable function, but the rotating shaft of the rotating body is perpendicular to the horizontal plane, i.e. rotates at any angle between 0 degree and 360 degrees on the horizontal plane.

How to design a bladeless fan, can utilize the wobbling mode to carry out angle modulation, the axis of rotation is parallel with the horizontal plane promptly to increase the control range of wind direction, further improve the performance of product, this is the technical problem that development designer needs to solve.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a bladeless fan which can be used for carrying out angle adjustment in a swinging mode, namely, a rotating shaft is parallel to a horizontal plane, so that the adjustment range of the wind direction is enlarged, and the performance of a product is further improved.

The purpose of the invention is realized by the following technical scheme:

a bladeless fan comprising: the fan comprises a base, a fan body and a swinging device, wherein the fan body is arranged on the base through the swinging device;

the swing device includes: a fixing mechanism, a rotating mechanism, a driving mechanism and a locking mechanism,

the fixing mechanism comprises a fixing chassis and a fixing cylinder body fixedly arranged on the fixing chassis, and the fixing chassis is fixed on the base;

the fan body is connected with the outer side wall of the rotary cylinder body;

actuating mechanism accept in the inner chamber of fixed barrel, actuating mechanism includes: the driving mechanism comprises a swing driving part, a driving shaft, a driving gear and a driven gear, wherein two ends of the driving shaft are respectively connected with an output end of the swing driving part and the driving gear, the driven gear is rotatably arranged on the fixed cylinder and is provided with a primary driven gear and a secondary driven gear, the driving gear is meshed with the primary driven gear of the driven gear, a rotating tooth socket is formed in the inner side wall of the rotating cylinder, and the secondary driven gear of the driven gear is meshed with the rotating tooth socket;

the locking mechanism comprises a locking gear and a locking lug, the locking gear is fixedly sleeved on the driving shaft, the locking lug is rotatably arranged on the inner side wall of the rotary cylinder body through a locking torsion spring, and the locking lug accommodates or separates from a tooth groove of the locking gear.

In one embodiment, the swing driving part is a motor driving structure.

In one embodiment, the number of locking mechanisms is two.

In one embodiment, the fixed cylinder is a circular cylinder structure.

In one embodiment, the wall of the fixed cylinder is provided with an avoiding through hole, and the driven gear passes through the avoiding through hole to be meshed with the rotating tooth socket.

In one embodiment, the fixed chassis is a circular disk structure.

In one embodiment, the rotating cylinder is a circular cylinder structure.

According to the bladeless fan, the base, the fan body and the swinging device are arranged, so that the angle can be adjusted in a swinging mode, namely the rotating shaft is parallel to the horizontal plane, the adjusting range of the wind direction is enlarged, and the performance of a product is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a block diagram of a bladeless fan according to an embodiment of the present invention;

FIG. 2 is a first view of the swing device of the bladeless fan shown in FIG. 1;

FIG. 3 is a structural diagram of a swing device of the bladeless fan shown in FIG. 1;

FIG. 4 is an exploded view of the oscillating device of the bladeless fan shown in FIG. 1;

FIG. 5 is a block diagram of a locking tab of the swing shown in FIG. 4;

FIG. 6 is an enlarged view of FIG. 2 at A;

FIG. 7 is a partial schematic view of the fan body of the bladeless fan shown in FIG. 1;

FIG. 8 is an exploded view of the fan body shown in FIG. 7;

fig. 9 is a structural view of the fan body shown in fig. 7 from another angle.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, abladeless fan 10 includes: the fan comprises abase 20, afan body 30 and aswinging device 40, wherein thefan body 30 is installed on thebase 20 through theswinging device 40. Through setting uppendulous device 40 forfan body 30 can take place the swing onbase 20, and the axis of rotation offan body 30 is parallel with the horizontal plane, and like this,fan body 30 can carry out angle modulation through the mode of swing, reaches the purpose of oscillating air supply.

As shown in fig. 1, thebase 20 includes: asupport base 21, aleft support wall 22, and aright support wall 23. Theleft support wall 22 and theright support wall 23 are fixed on thesupport base 21, and theleft support wall 22 and theright support wall 23 are spaced from each other. The number of theswing devices 40 is two, oneswing device 40 being mounted on theleft support wall 22 and theother swing device 40 being mounted on theright support wall 23. Thefan body 30 has ahousing 31, and thehousing 31 is connected to theswing device 40 on theleft support wall 22 and theswing device 40 on theright support wall 23, respectively.

Base 20 is through setting up leftside supporting wall 22 and rightside supporting wall 23, installs apendulous device 40 on leftside supporting wall 22 simultaneously, and install apendulous device 40 on rightside supporting wall 23, then,casing 31 is connected withpendulous device 40 on leftside supporting wall 22 and thependulous device 40 on the rightside supporting wall 23 respectively, such structural design is favorable to holistic balance, makefan body 30 atress more even at the wobbling in-process, prevent the phenomenon that the atress is uneven and take place to empty.

The following mainly explains the specific structure of theswing device 40 and the connection relationship between the respective members:

as shown in fig. 2, 3 and 4, theswing device 40 includes:fixing mechanism 100,rotation mechanism 200,drive mechanism 300,locking mechanism 400.

As shown in fig. 4, thefixing mechanism 100 includes afixing base plate 110 and afixing cylinder 120 fixed on thefixing base plate 110, and thefixing base plate 110 is fixed on thebase 20. In this embodiment, thefixing base 110 is a circular disk structure, and thefixing cylinder 120 is a circular cylinder structure.

As shown in fig. 4, therotating mechanism 200 includes a rotating bearing 210 and a rotatingcylinder 220, an inner ring of the rotating bearing 210 is sleeved on an outer side wall of the fixedcylinder 120, an inner side wall of the rotatingcylinder 220 is pressed on an outer ring of the rotating bearing 210, and thefan body 30 is connected with the outer side wall of the rotatingcylinder 220. In the present embodiment, therotary cylinder 220 has a circular cylinder structure.

Thedriving mechanism 300 is accommodated in the inner cavity of the fixedcylinder 120, and as shown in fig. 4, thedriving mechanism 300 includes: a swing driving part (not shown), adriving shaft 310, adriving gear 320, and a drivengear 330. In this embodiment, the swing driving portion is a motor driving structure. Both ends of thedriving shaft 310 are respectively connected to the output end of the swing driving part and thedriving gear 320, the drivengear 330 is rotatably disposed on the fixedcylinder 120, the drivengear 330 has a first-stage driven wheel 331 and a second-stage drivenwheel 332, thedriving gear 320 is engaged with the first-stage driven wheel 331 of the drivengear 330, the inner side wall of therotary cylinder 220 is provided with arotary tooth slot 221, and the second-stage drivenwheel 332 of the drivengear 330 is engaged with therotary tooth slot 221. As shown in fig. 4, an escape throughhole 121 is further formed in the wall of the fixedcylinder 120, and the drivengear 330 passes through the escape throughhole 121 to engage with the rotatingteeth groove 221.

As shown in fig. 4, thelocking mechanism 400 includes alocking gear 410 and a lockingprotrusion 420, thelocking gear 410 is fixedly sleeved on the drivingshaft 310, the lockingprotrusion 420 is rotatably disposed on the inner sidewall of therotary cylinder 220 through a lockingtorsion spring 430, and the lockingprotrusion 420 is received in or separated from the tooth groove of thelocking gear 410. In the present embodiment, the number of thelock mechanisms 400 is two.

The operation principle of theswing device 40 will be explained below:

the swing drive drives thedriving gear 320 to rotate through the drivingshaft 310;

thedriving gear 320 further drives the first-stage driven wheel 331 of the drivengear 330 engaged therewith to transmit, and the first-stage driven wheel 331 of the drivengear 330 further drives the second-stage drivenwheel 332 to rotate;

because the secondary drivenwheel 332 is meshed with therotating tooth groove 221 on the inner side wall of therotating cylinder 220, and therotating cylinder 220 is rotatably sleeved on the fixedcylinder 120 through therotating bearing 210, the rotation of the secondary drivenwheel 332 drives therotating cylinder 220 to rotate at the same time;

because thefan body 30 is connected with the outer side wall of therotary cylinder 220, therotary cylinder 220 in rotation drives thefan body 30 to rotate, so that thefan body 30 swings, the angle of thefan body 30 is adjusted, thefan body 30 can be adjusted in a swinging mode, and the aim of swinging air supply is fulfilled;

during the swinging of thefan body 30, the lockingprotrusions 420 of thelocking mechanism 400 are disengaged from the teeth grooves of thelocking gear 410, so that the drivingshaft 310 and the related connecting parts can rotate freely and smoothly;

when thefan body 30 swings to a certain angle, the swing driving part stops driving the drivingshaft 310, the lockingprotrusion 420 enters the tooth groove of thelocking gear 410 under the elastic restoring force of the lockingtorsion spring 430, and the lockingprotrusion 420 abuts against thelocking gear 410, so that thelocking gear 410 can be fixed, and then the drivingshaft 310, thedriving gear 320, the drivengear 330, and therotary cylinder 220 can also be fixed, thereby fixing the swing angle of thefan body 30.

The following explains the principle of the structural design of the swing device 40:

1. the fixedchassis 110 is fixed on thebase 20, therotary cylinder 220 is rotatably sleeved on the fixedcylinder 120 through therotary bearing 210, and the fixedcylinder 120 is accommodated in a cavity of therotary cylinder 220; due to the structural design, on one hand, the fixedcylinder 120 is accommodated in the cavity of therotary cylinder 220, so that the occupied space can be better saved; on the other hand, therotary cylinder 220 is rotatably sleeved on the fixedcylinder 120 through therotary bearing 210, the fixedcylinder 120 can bear the weight of therotary cylinder 220, and therotary cylinder 220 can rotate on the fixedcylinder 120;

2. thedriving mechanism 300 is accommodated in the inner cavity of the fixedcylinder 120, an avoiding throughhole 121 is formed in the cylinder wall of the fixedcylinder 120, and the drivengear 330 penetrates through the avoiding throughhole 121 to be meshed with therotating tooth groove 221; due to the structural design, thedriving mechanism 300 is accommodated in the inner cavity of the fixedcylinder 120, so that the space can be fully utilized, and the whole structure is more compact;

3. thelocking mechanism 400 is specially designed, when thefan body 30 swings to a certain proper angle, the swing driving part stops driving the drivingshaft 310, the lockingprotrusion 420 enters into the tooth groove of thelocking gear 410 under the elastic restoring force of the lockingtorsion spring 430, the lockingprotrusion 420 abuts against thelocking gear 410, so that thelocking gear 410 can be fixed, and then the drivingshaft 310, thedriving gear 320, the drivengear 330 and therotary cylinder 220 can also be fixed, thereby fixing the swing angle of thefan body 30 and reducing the long-term load of the swing driving part.

As shown in fig. 5 and fig. 6, a plug-pulltype rotating shaft 421 is disposed on the lockingprotrusion 420, a plug-pull groove 222 is disposed on an inner side wall of therotating cylinder 220, and the plug-pulltype rotating shaft 421 is plugged into the plug-pull groove 222. Thus, the lockingprotrusion 420 can be rotatably disposed in theinsertion groove 222 through the insertion and pullingtype rotating shaft 421, the number of the lockingprotrusions 420 can be properly increased or decreased according to actual conditions, and the insertion and pullingtype rotating shaft 421 is matched with the insertion and pullinggroove 222 to form a movable insertion and pulling structural design, thereby greatly facilitating the installation or removal of the lockingprotrusion 420.

Thebladeless fan 10 with the structure is provided with the swingingdevice 40, and thefan body 30 can be adjusted in an angle mode in a swinging mode, namely, the rotating shaft is parallel to the horizontal plane, so that the adjusting range of the wind direction is enlarged, and the performance of the product is further improved.

In order to further improve the overall performance of the product, thebladeless fan 10 can also adjust the wind speed on the basis of the adjustable wind direction, and particularly, the structure of thefan body 30 is improved.

As shown in fig. 7 and 8, thefan body 30 includes: a casing 31 (shown in fig. 1), a blowingduct 500, an air speed anddirection adjusting device 600, and adriving device 700.

As shown in fig. 1, thehousing 31 is a hollow cavity structure, and anair supply grille 32 is disposed on a cavity wall of thehousing 31; theair supply duct 500, the air speed anddirection adjusting device 600, and thedriving device 700 are housed in a cavity of thecasing 31. In this embodiment, thecasing 31 is a cylindrical structure with both ends closed, and theair supply grille 32 is distributed over the wall of thecasing 31.

As shown in fig. 7, the wind speed anddirection adjusting apparatus 600 includes: a slidingsleeve 610, a plurality of windspeed adjustment assemblies 620, a fixeddisk 630.

As shown in fig. 8, the slidingsleeve 610 is slidably sleeved on theair supply duct 500, a first air supply hole (not shown) is formed on a wall of theair supply duct 500, and a secondair supply hole 611 penetrating through the first air supply hole is formed on a wall of the slidingsleeve 610.

Specifically, theair supply duct 500 has a linear pipe structure, the slidingsleeve 610 has a cylindrical structure with openings at both ends, and the central axis of theair supply duct 500 and the central axis of the slidingsleeve 610 are on the same straight line. The first air supply holes are formed along the extension line direction of theair supply pipeline 500, the number of the first air supply holes is multiple, and the multiple first air supply holes are distributed in an annular array by taking the central axis of theair supply pipeline 500 as the center; the second air supply holes 611 are opened along the extension line direction of the slidingsleeve 610, the number of the second air supply holes 611 is multiple, and the multiple second air supply holes 611 are distributed in an annular array with the central axis of the slidingsleeve 610 as the center; the plurality of first blow holes correspond to the plurality of second blow holes 611 one to one.

A plurality of windspeed adjusting assemblies 620 are distributed in an annular array centering on the central axis of the slidingsleeve 610, as shown in fig. 8, the windspeed adjusting assemblies 620 include: the wind speed adjusting device comprises a wind speed adjustingmovable rod 621 and a wind speed adjustingcover plate 622, wherein the wind speed adjustingmovable rod 621 is pivoted on the outer side wall of the slidingsleeve 610 through a connectingrod 623, and the wind speed adjustingcover plate 622 is fixed on the wind speed adjustingmovable rod 621.

As shown in fig. 8, the fixeddisk 630 is fixedly sleeved on theair supply duct 500, a wind speed adjustingguide hole 631 is formed in the body of the fixeddisk 630, a topclamping guide roller 624 and a bottom clampingguide roller 625 are arranged at one end of the wind speed adjustingmovable rod 621, one end of the wind speed adjustingmovable rod 621 is inserted into the wind speed adjustingguide hole 631, and the topclamping guide roller 624 and the bottom clampingguide roller 625 respectively abut against two opposite disk surfaces of the fixeddisk 630.

In this embodiment, the wind speed adjustingmovable rod 621 is a strip-shaped rod structure, and an extension line of the wind speed adjustingmovable rod 621 is parallel to a central axis of the slidingsleeve 610; the wind speed adjustingcover plate 622 is a strip-shaped plate structure, and the extension line of the wind speed adjustingcover plate 622 is parallel to the central axis of the slidingsleeve 610; the cross section of the wind speed adjustingcover plate 622 is of an arc-shaped structure.

As shown in fig. 8, the drivingapparatus 700 includes: a telescopic rotary driving part (not shown), a telescopicrotary shaft 710 and an intermediate connectingmember 720.

The telescopic rotary driving part is in driving connection with the telescopicrotary shaft 710; specifically, the telescopic rotary drive unit includes: the telescopic rotary shaft device comprises a telescopic cylinder and a rotary motor, wherein the telescopic cylinder drives the telescopicrotary shaft 710 to do telescopic motion, and the rotary motor drives the telescopicrotary shaft 720 to do rotary motion.

As shown in fig. 8, theintermediate link 720 includes: anintermediate connection cylinder 721, anintermediate connection rod 722; themiddle connection cylinder 721 is fixed at one end of theair supply duct 500, a clampingguide groove 723 is formed on the cylinder wall of themiddle connection cylinder 721, the middle of the rod body of themiddle connection rod 722 slides and is clamped in the clampingguide groove 723, the telescopicrotating shaft 710 sequentially penetrates through theair supply duct 500 and themiddle connection cylinder 721, one end of themiddle connection rod 722 is connected with the telescopicrotating shaft 710, and the other end of themiddle connection rod 722 is connected with the slidingsleeve 610.

In this embodiment, the number of the windspeed adjusting assemblies 620 is four, the cylinder wall of theintermediate connection cylinder 721 is provided with four clampingguide slots 723, the number of theintermediate connection rods 722 is four, and the body of the fixeddisk 630 is provided with four wind speed adjusting guide holes 631.

The operation principle of thefan body 30 will be explained below:

the related blowing device blows air into the blowingduct 500, and the air is blown out from the blowinggrille 32 on the cavity wall of thehousing 31 through the first blowing hole on the wall of the blowingduct 500 and thesecond blowing hole 611 on the wall of the slidingsleeve 610;

to change the direction of the wind, the actions are as follows:

a rotary motor in the telescopic rotary driving part drives the telescopicrotary shaft 720 so that the telescopicrotary shaft 720 can make a rotary motion;

because themiddle connection cylinder 721 is fixed at one end of theair supply duct 500, the middle part of the rod body of themiddle connection rod 722 is clamped in the clampingguide groove 723, and the two ends of themiddle connection rod 722 are respectively connected with the telescopicrotating shaft 710 and the slidingsleeve 610, the telescopicrotating shaft 720 can drive theair supply duct 500 and the slidingsleeve 610 to rotate at the same time, and thus, the purpose of changing the direction of the air can be achieved;

to change the speed of the wind, the actions are as follows:

the telescopic cylinder in the telescopic rotary driving part drives the telescopicrotary shaft 720, so that the telescopicrotary shaft 720 can do linear telescopic motion, the telescopicrotary shaft 720 drives themiddle connecting rod 722 to linearly and reciprocally slide along the clampingguide slot 723 of themiddle connecting cylinder 721, themiddle connecting rod 722 further drives the slidingsleeve 610 connected with the middle connecting rod to linearly and reciprocally slide along theair supply pipeline 500, then the slidingsleeve 610 can pull the wind speed adjustingmovable rod 621 under the action of the connectingrod 623, and the wind speed adjustingmovable rod 621 also drives the wind speed adjustingcover plate 622 to contract towards one side close to the slidingsleeve 610 or expand towards one side far away from the slidingsleeve 610;

referring to fig. 9, it should be noted that, since there are a plurality of windspeed adjustment assemblies 620, there are a plurality of wind speedadjustment cover plates 622 disposed around the slidingsleeve 610, and a space is formed between two adjacent wind speedadjustment cover plates 622;

when the plurality of wind speedadjustment cover plates 622 are contracted toward a side close to the slidingsleeve 610, the interval formed between two adjacent wind speedadjustment cover plates 622 is reduced, and thus, wind is blown out from the reduced interval, and thus, the speed of the blown wind is increased;

when the plurality of wind speedadjustment cover plates 622 are expanded towards the side far away from the slidingsleeve 610, the interval formed between two adjacent wind speedadjustment cover plates 622 becomes larger, and then the wind blows out from the enlarged gap, so that the speed of the blown wind becomes smaller correspondingly;

it is conceivable that the telescopicrotary shaft 720 is driven to perform both rotary motion and telescopic motion, so that the wind direction and the wind speed can be adjusted.

The following explains the principle of the structural design of the fan body 30:

1. themiddle connecting rod 722 can not only drive themiddle connecting cylinder 721 to rotate, but also slide along the clampingguide slot 723 to drive the slidingsleeve 610 to slide back and forth under the action of the telescopicrotating shaft 710, so that the aim of changing wind direction and wind speed is achieved;

2. the wall of themiddle connection cylinder 721 is provided with a clampingguide groove 723, on one hand, the clampingguide groove 723 can guide themiddle connection rod 722, and on the other hand, themiddle connection rod 722 can drive the slidingsleeve 610 and theair supply pipeline 500 to rotate through the clampingguide groove 723;

3. the fixeddisk 630 is fixedly sleeved on theair supply pipeline 500, an air speed adjustingguide hole 631 is formed in the disk body of the fixeddisk 630, one end of the air speed adjustingmovable rod 621 is inserted into the air speed adjustingguide hole 631, and the topclamping guide roller 624 and the bottom clampingguide roller 625 respectively abut against two disk surfaces opposite to each other of the fixeddisk 630, so that the structural design is favorable for being matched with the air speed adjustingcover plate 622 to perform contraction or expansion movement, and the purpose of adjusting the air speed is achieved;

4. the telescopicrotating shaft 710 sequentially penetrates through theair supply pipeline 500 and the intermediate connectingcylinder 721, and the structural design can make full use of the space of theair supply pipeline 500 and the intermediate connectingcylinder 721, so that the purposes of rotation and extension of the telescopicrotating shaft 710 are achieved on the basis of more compact integral structure.

According to thebladeless fan 10, the structure of thebladeless fan 10 is optimally designed, so that the direction of wind can be adjusted, the speed of the wind can be adjusted, and the overall performance of a product is improved.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (6)

1. A bladeless fan, comprising: the fan comprises a base, a fan body and a swinging device, wherein the fan body is arranged on the base through the swinging device;

the swing device includes: the device comprises a fixing mechanism, a rotating mechanism, a driving mechanism and a locking mechanism;

the fixing mechanism comprises a fixing chassis and a fixing cylinder body fixedly arranged on the fixing chassis, and the fixing chassis is fixed on the base;

the fan body is connected with the outer side wall of the rotary cylinder body;

actuating mechanism accept in the inner chamber of fixed barrel, actuating mechanism includes: the driving mechanism comprises a swing driving part, a driving shaft, a driving gear and a driven gear, wherein two ends of the driving shaft are respectively connected with an output end of the swing driving part and the driving gear, the driven gear is rotatably arranged on the fixed cylinder and is provided with a primary driven gear and a secondary driven gear, the driving gear is meshed with the primary driven gear of the driven gear, a rotating tooth socket is formed in the inner side wall of the rotating cylinder, and the secondary driven gear of the driven gear is meshed with the rotating tooth socket;

the locking mechanism comprises a locking gear and a locking lug, the locking gear is fixedly sleeved on the driving shaft, the locking lug is rotatably arranged on the inner side wall of the rotary cylinder body through a locking torsion spring, and the locking lug accommodates or disengages from a tooth groove of the locking gear;

the wall of the fixed cylinder body is provided with an avoiding through hole, and the driven gear penetrates through the avoiding through hole to be meshed with the rotating tooth socket.

2. The bladeless fan of claim 1, wherein the oscillating drive is a motor drive.

3. The bladeless fan of claim 1, wherein the number of locking mechanisms is two.

4. The bladeless fan of claim 1, wherein the stationary cylinder is a circular cylinder structure.

5. The bladeless fan of claim 1 wherein the stationary chassis is a circular disk structure.

6. The bladeless fan of claim 1, wherein the rotating cylinder is a circular cylinder structure.

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