CN109139521B - Bladeless fan - Google Patents
Bladeless fan Download PDFInfo
- Publication number
- CN109139521B CN109139521B CN201811041532.4A CN201811041532A CN109139521B CN 109139521 B CN109139521 B CN 109139521B CN 201811041532 A CN201811041532 A CN 201811041532A CN 109139521 B CN109139521 B CN 109139521B
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- Prior art keywords
- wind speed
- air supply
- speed adjusting
- sliding sleeve
- cylinder
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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
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
Abstract
The invention discloses a bladeless fan which comprises a fan body. The fan body includes: the wind speed and direction adjusting device comprises a shell, a wind supply pipeline, a wind speed and direction adjusting device and a driving device. Wind speed and direction adjusting device includes: the wind speed adjusting device comprises a sliding sleeve, a plurality of wind speed adjusting components and a fixed disc; the sliding sleeve is sleeved on the air supply pipeline in a sliding manner; the wind speed adjusting assembly includes: the wind speed adjusting movable rod is pivoted to the sliding sleeve through a connecting rod; the fixed disc is fixedly sleeved on the air supply pipeline; the drive device includes: a telescopic rotary driving part, a telescopic rotary shaft and an intermediate connecting piece; the intermediate junction spare includes: the middle is connected with the cylinder body and the middle connecting rod; the wall of the intermediate connection barrel is provided with a clamping guide groove, the middle part of the rod body of the intermediate connection rod slides and is clamped in the clamping guide groove, and two ends of the intermediate connection rod are respectively connected with the telescopic rotating shaft and the sliding sleeve. The bladeless fan can also adjust the wind speed on the basis of adjustable wind direction.
Description
Technical Field
The invention relates to the technical field of fans, in particular to a bladeless fan.
Background
A bladeless fan is disclosed in prior art 1(CN105822592B), and comprises: the air inlet is formed in the base; the fan is arranged in the base; the bladeless fan comprises a bladeless fan head, wherein an air outlet is formed in the bladeless fan head, the bladeless fan head comprises a detachable portion and a main body portion, the detachable portion is mounted on the base, the main body portion is mounted on the detachable portion, at least one portion of the air outlet is formed in the main body portion, and the main body portion is directly mounted on the base through the detachable portion after being detached so as to adjust the height of the main body portion. The bladeless fan provided by the embodiment of the invention can adjust the air supply height, and has the advantages of large adjustment range, good air supply effect and the like.
Prior art 2(CN107676301A) discloses a bladeless fan, comprising: a base part; a nozzle portion connected above the base portion for emitting an air flow; and a wind speed adjusting part, wherein the base part comprises an airflow channel for airflow to flow; the air speed adjusting part comprises a pressure sensor which is arranged on the nozzle part and used for measuring the pressure intensity of the emitted air flow; a controller for controlling the pressure of the emitted air flow based on the pressure feedback received from the pressure sensor, the controller being connected to the air flow generating unit; and a control panel connected with the controller for setting the pressure of the emitted air flow. The wind speed control device can control the wind speed according to the preset numerical value of the user, and not only can meet the requirement of comfort level of the user in life, but also can meet the requirement of specific wind speed in industry.
As can be seen from prior art 1, the bladeless fan disclosed herein does not have a function of adjusting the wind speed, and such a structural design makes the speed of the wind blown by the bladeless fan single, thereby reducing the performance of the product.
As can be seen from prior art 2, the bladeless fan disclosed therein has a function of adjusting the wind speed, but the wind direction is not adjustable.
Therefore, how to design a bladeless fan can also adjust the wind speed on the basis of adjustable wind direction, so as to further improve the performance of the product, which is a technical problem that development and design personnel need to solve.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a bladeless fan, which can adjust the wind speed on the basis of adjustable wind direction, so that the performance of a product is further improved.
The purpose of the invention is realized by the following technical scheme:
a bladeless fan comprises a fan body;
the fan body includes: the device comprises a shell, an air supply pipeline, an air speed and direction adjusting device and a driving device;
the shell is of a hollow cavity structure, and an air supply grid is arranged on the wall of the shell; the air supply pipeline, the wind speed and direction adjusting device and the driving device are contained in a cavity of the shell;
the wind speed and direction adjusting device comprises: the wind speed adjusting device comprises a sliding sleeve, a plurality of wind speed adjusting components and a fixed disc;
the sliding sleeve is sleeved on the air supply pipeline in a sliding mode, a first air supply hole is formed in the wall of the air supply pipeline, and a second air supply hole communicated with the first air supply hole is formed in the wall of the sliding sleeve;
the wind speed adjusting assemblies are distributed in an annular array by taking a central shaft of the sliding sleeve as a center, and each wind speed adjusting assembly comprises: the wind speed adjusting device comprises a wind speed adjusting movable rod and a wind speed adjusting cover plate, wherein the wind speed adjusting movable rod is pivoted to the outer side wall of the sliding sleeve through a connecting rod, and the wind speed adjusting cover plate is fixed on the wind speed adjusting movable rod;
the fixed disc is fixedly sleeved on the air supply pipeline, an air speed adjusting guide hole is formed in the disc body of the fixed disc, a top clamping guide roller and a bottom clamping guide roller are arranged at one end of the air speed adjusting movable rod, one end of the air speed adjusting movable rod is inserted into the air speed adjusting guide hole, and the top clamping guide roller and the bottom clamping guide roller are respectively abutted against two disc surfaces of the fixed disc, which are opposite to each other;
the driving device includes: a telescopic rotary driving part, a telescopic rotary shaft and an intermediate connecting piece; the telescopic rotary driving part is in driving connection with the telescopic rotary shaft;
the intermediate connection member includes: the middle is connected with the cylinder body and the middle connecting rod; the middle connecting cylinder is fixed at one end of the air supply pipeline, a clamping guide groove is formed in the cylinder wall of the middle connecting cylinder, the middle of the rod body of the middle connecting rod slides and is clamped in the clamping guide groove, the telescopic rotating shaft sequentially penetrates through the air supply pipeline and the middle connecting cylinder, one end of the middle connecting rod is connected with the telescopic rotating shaft, and the other end of the middle connecting rod is connected with the sliding sleeve.
In one embodiment, the telescopic rotary driving part includes: the telescopic rotary shaft is driven to do telescopic motion by the telescopic cylinder, and the rotary shaft is driven to do rotary motion by the rotary motor.
In one embodiment, the housing is a cylindrical structure with two closed ends.
In one embodiment, the air supply grille is distributed on the cavity wall of the shell.
In one embodiment, the air supply duct is a linear pipe body structure, the sliding sleeve is a cylindrical structure with two open ends, and the central axis of the air supply duct and the central axis of the sliding sleeve are on the same straight line.
In one embodiment, the first air supply holes are formed along the extension line direction of the air supply pipeline, 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 the air supply pipeline as the center; the second air supply holes are formed along the extension line direction of the sliding sleeve, the number of the second air supply holes is multiple, and the second air supply holes are distributed in an annular array by taking the central shaft of the sliding sleeve as the center; the plurality of first air supply holes correspond to the plurality of second air supply holes one by one.
In one embodiment, the number of the wind speed adjusting assemblies is four, the cylinder wall of the middle connecting cylinder is provided with four clamping guide grooves, the number of the middle connecting rods is four, and the disc body of the fixed disc is provided with four wind speed adjusting guide holes.
In one embodiment, the wind speed adjusting movable rod is a strip-shaped rod body structure, and an extension line of the wind speed adjusting movable rod is parallel to a central axis of the sliding sleeve.
In one embodiment, the wind speed adjusting cover plate is in a strip plate structure, and an extension line of the wind speed adjusting cover plate is parallel to a central axis of the sliding sleeve.
In one embodiment, the cross section of the wind speed adjusting cover plate is of an arc-shaped structure.
According to the bladeless fan, the internal structure of the fan body is optimally designed, and on the basis of adjustable wind direction, the wind speed can be adjusted, so that 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, a bladeless fan 10 includes: the fan comprises a base 20, a fan body 30 and a swinging device 40, wherein the fan body 30 is installed on the base 20 through the swinging device 40. Through setting up pendulous device 40 for fan body 30 can take place the swing on base 20, and the axis of rotation of fan 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, the base 20 includes: a support base 21, a left support wall 22, and a right support wall 23. The left support wall 22 and the right support wall 23 are fixed on the support base 21, and the left support wall 22 and the right support wall 23 are spaced from each other. The number of the swing devices 40 is two, one swing device 40 being mounted on the left support wall 22 and the other swing device 40 being mounted on the right support wall 23. The fan body 30 has a housing 31, and the housing 31 is connected to the swing device 40 on the left support wall 22 and the swing device 40 on the right support wall 23, respectively.
The following mainly explains the specific structure of the swing device 40 and the connection relationship between the respective members:
as shown in fig. 2, 3 and 4, the swing device 40 includes: fixing mechanism 100, rotation mechanism 200, drive mechanism 300, locking mechanism 400.
As shown in fig. 4, the fixing mechanism 100 includes a fixing base plate 110 and a fixing cylinder 120 fixed on the fixing base plate 110, and the fixing base plate 110 is fixed on the base 20. In this embodiment, the fixing base 110 is a circular disk structure, and the fixing cylinder 120 is a circular cylinder structure.
As shown in fig. 4, the rotating mechanism 200 includes a rotating bearing 210 and a rotating cylinder 220, an inner ring of the rotating bearing 210 is sleeved on an outer side wall of the fixed cylinder 120, an inner side wall of the rotating cylinder 220 is pressed on an outer ring of the rotating bearing 210, and the fan body 30 is connected with the outer side wall of the rotating cylinder 220. In the present embodiment, the rotary cylinder 220 has a circular cylinder structure.
The driving mechanism 300 is accommodated in the inner cavity of the fixed cylinder 120, and as shown in fig. 4, the driving mechanism 300 includes: a swing driving part (not shown), a driving shaft 310, a driving gear 320, and a driven gear 330. In this embodiment, the swing driving portion is a motor driving structure. Both ends of the driving shaft 310 are respectively connected to the output end of the swing driving part and the driving gear 320, the driven gear 330 is rotatably disposed on the fixed cylinder 120, the driven gear 330 has a first-stage driven wheel 331 and a second-stage driven wheel 332, the driving gear 320 is engaged with the first-stage driven wheel 331 of the driven gear 330, the inner side wall of the rotary cylinder 220 is provided with a rotary tooth slot 221, and the second-stage driven wheel 332 of the driven gear 330 is engaged with the rotary tooth slot 221. As shown in fig. 4, an escape through hole 121 is further formed in the wall of the fixed cylinder 120, and the driven gear 330 passes through the escape through hole 121 to engage with the rotating teeth groove 221.
As shown in fig. 4, the locking mechanism 400 includes a locking gear 410 and a locking protrusion 420, the locking gear 410 is fixedly sleeved on the driving shaft 310, the locking protrusion 420 is rotatably disposed on the inner sidewall of the rotary cylinder 220 through a locking torsion spring 430, and the locking protrusion 420 is received in or separated from the tooth groove of the locking gear 410. In the present embodiment, the number of the lock mechanisms 400 is two.
The operation principle of the swing device 40 will be explained below:
the swing drive drives the driving gear 320 to rotate through the driving shaft 310;
the driving gear 320 further drives the first-stage driven wheel 331 of the driven gear 330 engaged therewith to transmit, and the first-stage driven wheel 331 of the driven gear 330 further drives the second-stage driven wheel 332 to rotate;
because the secondary driven wheel 332 is meshed with the rotating tooth groove 221 on the inner side wall of the rotating cylinder 220, and the rotating cylinder 220 is rotatably sleeved on the fixed cylinder 120 through the rotating bearing 210, the rotation of the secondary driven wheel 332 drives the rotating cylinder 220 to rotate at the same time;
because the fan body 30 is connected with the outer side wall of the rotary cylinder 220, the rotary cylinder 220 in rotation drives the fan body 30 to rotate, so that the fan body 30 swings, the angle of the fan body 30 is adjusted, the fan body 30 can be adjusted in a swinging mode, and the aim of swinging air supply is fulfilled;
during the swinging of the fan body 30, the locking protrusions 420 of the locking mechanism 400 are disengaged from the teeth grooves of the locking gear 410, so that the driving shaft 310 and the related connecting parts can rotate freely and smoothly;
when the fan body 30 swings to a certain angle, the swing driving part stops driving the driving shaft 310, the locking protrusion 420 enters the tooth groove of the locking gear 410 under the elastic restoring force of the locking torsion spring 430, and the locking protrusion 420 abuts against the locking gear 410, so that the locking gear 410 can be fixed, and then the driving shaft 310, the driving gear 320, the driven gear 330, and the rotary cylinder 220 can also be fixed, thereby fixing the swing angle of the fan body 30.
The following explains the principle of the structural design of the swing device 40:
1. the fixed chassis 110 is fixed on the base 20, the rotary cylinder 220 is rotatably sleeved on the fixed cylinder 120 through the rotary bearing 210, and the fixed cylinder 120 is accommodated in a cavity of the rotary cylinder 220; due to the structural design, on one hand, the fixed cylinder 120 is accommodated in the cavity of the rotary cylinder 220, so that the occupied space can be better saved; on the other hand, the rotary cylinder 220 is rotatably sleeved on the fixed cylinder 120 through the rotary bearing 210, the fixed cylinder 120 can bear the weight of the rotary cylinder 220, and the rotary cylinder 220 can rotate on the fixed cylinder 120;
2. the driving mechanism 300 is accommodated in the inner cavity of the fixed cylinder 120, an avoiding through hole 121 is formed in the cylinder wall of the fixed cylinder 120, and the driven gear 330 penetrates through the avoiding through hole 121 to be meshed with the rotating tooth groove 221; due to the structural design, the driving mechanism 300 is accommodated in the inner cavity of the fixed cylinder 120, so that the space can be fully utilized, and the whole structure is more compact;
3. the locking mechanism 400 is specially designed, when the fan body 30 swings to a certain proper angle, the swing driving part stops driving the driving shaft 310, the locking protrusion 420 enters into the tooth groove of the locking gear 410 under the elastic restoring force of the locking torsion spring 430, the locking protrusion 420 abuts against the locking gear 410, so that the locking gear 410 can be fixed, and then the driving shaft 310, the driving gear 320, the driven gear 330 and the rotary cylinder 220 can also be fixed, thereby fixing the swing angle of the fan body 30 and reducing the long-term load of the swing driving part.
As shown in fig. 5 and fig. 6, a plug-pull type rotating shaft 421 is disposed on the locking protrusion 420, a plug-pull groove 222 is disposed on an inner side wall of the rotating cylinder 220, and the plug-pull type rotating shaft 421 is plugged into the plug-pull groove 222. Thus, the locking protrusion 420 can be rotatably disposed in the insertion groove 222 through the insertion and pulling type rotating shaft 421, the number of the locking protrusions 420 can be properly increased or decreased according to actual conditions, and the insertion and pulling type rotating shaft 421 is matched with the insertion and pulling groove 222 to form a movable insertion and pulling structural design, thereby greatly facilitating the installation or removal of the locking protrusion 420.
The bladeless fan 10 with the structure is provided with the swinging device 40, and the fan 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, the bladeless fan 10 can also adjust the wind speed on the basis of the adjustable wind direction, and particularly, the structure of the fan body 30 is improved.
As shown in fig. 7 and 8, the fan body 30 includes: a casing 31 (shown in fig. 1), a blowing duct 500, an air speed and direction adjusting device 600, and a driving device 700.
As shown in fig. 1, the housing 31 is a hollow cavity structure, and an air supply grille 32 is disposed on a cavity wall of the housing 31; the air supply duct 500, the air speed and direction adjusting device 600, and the driving device 700 are housed in a cavity of the casing 31. In this embodiment, the casing 31 is a cylindrical structure with both ends closed, and the air supply grille 32 is distributed over the wall of the casing 31.
As shown in fig. 7, the wind speed and direction adjusting apparatus 600 includes: a sliding sleeve 610, a plurality of wind speed adjustment assemblies 620, a fixed disk 630.
As shown in fig. 8, the sliding sleeve 610 is slidably sleeved on the air supply duct 500, a first air supply hole (not shown) is formed on a wall of the air supply duct 500, and a second air supply hole 611 penetrating through the first air supply hole is formed on a wall of the sliding sleeve 610.
Specifically, the air supply duct 500 has a linear pipe structure, the sliding sleeve 610 has a cylindrical structure with openings at both ends, and the central axis of the air supply duct 500 and the central axis of the sliding sleeve 610 are on the same straight line. The first air supply holes are formed along the extension line direction of the air 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 the air supply pipeline 500 as the center; the second air supply holes 611 are opened along the extension line direction of the sliding sleeve 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 sliding sleeve 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 wind speed adjusting assemblies 620 are distributed in an annular array centering on the central axis of the sliding sleeve 610, as shown in fig. 8, the wind speed adjusting assemblies 620 include: the wind speed adjusting device comprises a wind speed adjusting movable rod 621 and a wind speed adjusting cover plate 622, wherein the wind speed adjusting movable rod 621 is pivoted on the outer side wall of the sliding sleeve 610 through a connecting rod 623, and the wind speed adjusting cover plate 622 is fixed on the wind speed adjusting movable rod 621.
As shown in fig. 8, the fixed disk 630 is fixedly sleeved on the air supply duct 500, a wind speed adjusting guide hole 631 is formed in the body of the fixed disk 630, a top clamping guide roller 624 and a bottom clamping guide roller 625 are arranged at one end of the wind speed adjusting movable rod 621, one end of the wind speed adjusting movable rod 621 is inserted into the wind speed adjusting guide hole 631, and the top clamping guide roller 624 and the bottom clamping guide roller 625 respectively abut against two opposite disk surfaces of the fixed disk 630.
In this embodiment, the wind speed adjusting movable rod 621 is a strip-shaped rod structure, and an extension line of the wind speed adjusting movable rod 621 is parallel to a central axis of the sliding sleeve 610; the wind speed adjusting cover plate 622 is a strip-shaped plate structure, and the extension line of the wind speed adjusting cover plate 622 is parallel to the central axis of the sliding sleeve 610; the cross section of the wind speed adjusting cover plate 622 is of an arc-shaped structure.
As shown in fig. 8, the driving apparatus 700 includes: a telescopic rotary driving part (not shown), a telescopic rotary shaft 710 and an intermediate connecting member 720.
The telescopic rotary driving part is in driving connection with the telescopic rotary 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 telescopic rotary shaft 710 to do telescopic motion, and the rotary motor drives the telescopic rotary shaft 720 to do rotary motion.
As shown in fig. 8, the intermediate link 720 includes: an intermediate connection cylinder 721, an intermediate connection rod 722; the middle connection cylinder 721 is fixed at one end of the air supply duct 500, a clamping guide groove 723 is formed on the cylinder wall of the middle connection cylinder 721, the middle of the rod body of the middle connection rod 722 slides and is clamped in the clamping guide groove 723, the telescopic rotating shaft 710 sequentially penetrates through the air supply duct 500 and the middle connection cylinder 721, one end of the middle connection rod 722 is connected with the telescopic rotating shaft 710, and the other end of the middle connection rod 722 is connected with the sliding sleeve 610.
In this embodiment, the number of the wind speed adjusting assemblies 620 is four, the cylinder wall of the intermediate connection cylinder 721 is provided with four clamping guide slots 723, the number of the intermediate connection rods 722 is four, and the body of the fixed disk 630 is provided with four wind speed adjusting guide holes 631.
The operation principle of the fan body 30 will be explained below:
the related blowing device blows air into the blowing duct 500, and the air is blown out from the blowing grille 32 on the cavity wall of the housing 31 through the first blowing hole on the wall of the blowing duct 500 and the second blowing hole 611 on the wall of the sliding sleeve 610;
to change the direction of the wind, the actions are as follows:
a rotary motor in the telescopic rotary driving part drives the telescopic rotary shaft 720 so that the telescopic rotary shaft 720 can make a rotary motion;
because the middle connection cylinder 721 is fixed at one end of the air supply duct 500, the middle part of the rod body of the middle connection rod 722 is clamped in the clamping guide groove 723, and the two ends of the middle connection rod 722 are respectively connected with the telescopic rotating shaft 710 and the sliding sleeve 610, the telescopic rotating shaft 720 can drive the air supply duct 500 and the sliding sleeve 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 telescopic rotary shaft 720, so that the telescopic rotary shaft 720 can do linear telescopic motion, the telescopic rotary shaft 720 drives the middle connecting rod 722 to linearly and reciprocally slide along the clamping guide slot 723 of the middle connecting cylinder 721, the middle connecting rod 722 further drives the sliding sleeve 610 connected with the middle connecting rod to linearly and reciprocally slide along the air supply pipeline 500, then the sliding sleeve 610 can pull the wind speed adjusting movable rod 621 under the action of the connecting rod 623, and the wind speed adjusting movable rod 621 also drives the wind speed adjusting cover plate 622 to contract towards one side close to the sliding sleeve 610 or expand towards one side far away from the sliding sleeve 610;
referring to fig. 9, it should be noted that, since there are a plurality of wind speed adjustment assemblies 620, there are a plurality of wind speed adjustment cover plates 622 disposed around the sliding sleeve 610, and a space is formed between two adjacent wind speed adjustment cover plates 622;
when the plurality of wind speed adjustment cover plates 622 are contracted toward a side close to the sliding sleeve 610, the interval formed between two adjacent wind speed adjustment 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 speed adjustment cover plates 622 are expanded towards the side far away from the sliding sleeve 610, the interval formed between two adjacent wind speed adjustment 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 telescopic rotary 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. the middle connecting rod 722 can not only drive the middle connecting cylinder 721 to rotate, but also slide along the clamping guide slot 723 to drive the sliding sleeve 610 to slide back and forth under the action of the telescopic rotating shaft 710, so that the aim of changing wind direction and wind speed is achieved;
2. the wall of the middle connection cylinder 721 is provided with a clamping guide groove 723, on one hand, the clamping guide groove 723 can guide the middle connection rod 722, and on the other hand, the middle connection rod 722 can drive the sliding sleeve 610 and the air supply pipeline 500 to rotate through the clamping guide groove 723;
3. the fixed disk 630 is fixedly sleeved on the air supply pipeline 500, an air speed adjusting guide hole 631 is formed in the disk body of the fixed disk 630, one end of the air speed adjusting movable rod 621 is inserted into the air speed adjusting guide hole 631, and the top clamping guide roller 624 and the bottom clamping guide roller 625 respectively abut against two disk surfaces opposite to each other of the fixed disk 630, so that the structural design is favorable for being matched with the air speed adjusting cover plate 622 to perform contraction or expansion movement, and the purpose of adjusting the air speed is achieved;
4. the telescopic rotating shaft 710 sequentially penetrates through the air supply pipeline 500 and the intermediate connecting cylinder 721, and the structural design can make full use of the space of the air supply pipeline 500 and the intermediate connecting cylinder 721, so that the purposes of rotation and extension of the telescopic rotating shaft 710 are achieved on the basis of more compact integral structure.
According to the bladeless fan 10, the structure of the bladeless 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 (10)
1. A bladeless fan is characterized by comprising a fan body;
the fan body includes: the device comprises a shell, an air supply pipeline, an air speed and direction adjusting device and a driving device;
the shell is of a hollow cavity structure, and an air supply grid is arranged on the wall of the shell; the air supply pipeline, the wind speed and direction adjusting device and the driving device are contained in a cavity of the shell;
the adjusting device comprises: the wind speed adjusting device comprises a sliding sleeve, a plurality of wind speed adjusting components and a fixed disc;
the sliding sleeve is sleeved on the air supply pipeline in a sliding mode, a first air supply hole is formed in the wall of the air supply pipeline, and a second air supply hole communicated with the first air supply hole is formed in the wall of the sliding sleeve;
the plurality of adjusting components are distributed in an annular array by taking a central shaft of the sliding sleeve as a center, and each wind speed adjusting component comprises: the wind speed adjusting device comprises a wind speed adjusting movable rod and a wind speed adjusting cover plate, wherein the wind speed adjusting movable rod is pivoted to the outer side wall of the sliding sleeve through a connecting rod, and the wind speed adjusting cover plate is fixed on the wind speed adjusting movable rod;
the fixed disc is fixedly sleeved on the air supply pipeline, an air speed adjusting guide hole is formed in the disc body of the fixed disc, a top clamping guide roller and a bottom clamping guide roller are arranged at one end of the air speed adjusting movable rod, one end of the air speed adjusting movable rod is inserted into the air speed adjusting guide hole, and the top clamping guide roller and the bottom clamping guide roller are respectively abutted against two disc surfaces of the fixed disc, which are opposite to each other;
the driving device includes: a telescopic rotary driving part, a telescopic rotary shaft and an intermediate connecting piece; the telescopic rotary driving part is in driving connection with the telescopic rotary shaft;
the intermediate connection member includes: the middle is connected with the cylinder body and the middle connecting rod; the middle connecting cylinder is fixed at one end of the air supply pipeline, a clamping guide groove is formed in the cylinder wall of the middle connecting cylinder, the middle of the rod body of the middle connecting rod slides and is clamped in the clamping guide groove, the telescopic rotating shaft sequentially penetrates through the air supply pipeline and the middle connecting cylinder, one end of the middle connecting rod is connected with the telescopic rotating shaft, and the other end of the middle connecting rod is connected with the sliding sleeve.
2. The bladeless fan according to claim 1, wherein the telescopic rotary drive comprises: the telescopic rotary shaft is driven to do telescopic motion by the telescopic cylinder, and the rotary shaft is driven to do rotary motion by the rotary motor.
3. The bladeless fan of claim 1, wherein the housing is a closed-ended cylindrical structure.
4. The bladeless fan of claim 3, wherein the supply grille is disposed over a wall of the housing.
5. The bladeless fan according to claim 1, wherein the air supply duct has a linear tubular structure, the sliding sleeve has a tubular structure with two open ends, and a central axis of the air supply duct is aligned with a central axis of the sliding sleeve.
6. The bladeless fan according to claim 1, wherein the first air supply holes are opened along an extension line direction of the air supply duct, the number of the first air supply holes is plural, and the plural first air supply holes are distributed in an annular array around a central axis of the air supply duct; the second air supply holes are formed along the extension line direction of the sliding sleeve, the number of the second air supply holes is multiple, and the second air supply holes are distributed in an annular array by taking the central shaft of the sliding sleeve as the center; the plurality of first air supply holes correspond to the plurality of second air supply holes one by one.
7. The bladeless fan according to claim 1, wherein the number of the wind speed adjusting assemblies is four, the cylinder wall of the intermediate connection cylinder is provided with four clamping guide grooves, the number of the intermediate connection rods is four, and the body of the fixed disk is provided with four wind speed adjusting guide holes.
8. The bladeless fan according to claim 1, wherein the wind speed adjusting movable rod is an elongated rod structure, and an extension line of the wind speed adjusting movable rod is parallel to a central axis of the sliding sleeve.
9. The bladeless fan of claim 8, wherein the wind speed adjusting cover plate is an elongated plate structure, and an extension line of the wind speed adjusting cover plate is parallel to a central axis of the sliding sleeve.
10. The bladeless fan of claim 9, wherein the wind speed adjustment cover plate has an arc-shaped cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041532.4A CN109139521B (en) | 2018-09-07 | 2018-09-07 | Bladeless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041532.4A CN109139521B (en) | 2018-09-07 | 2018-09-07 | Bladeless fan |
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| Publication Number | Publication Date |
|---|---|
| CN109139521A CN109139521A (en) | 2019-01-04 |
| CN109139521B true CN109139521B (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811041532.4A Active CN109139521B (en) | 2018-09-07 | 2018-09-07 | Bladeless fan |
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| Country | Link |
|---|---|
| CN (1) | CN109139521B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808808A (en) * | 2011-06-02 | 2012-12-05 | 任文华 | Bladeless fan |
| CN104279145A (en) * | 2013-07-09 | 2015-01-14 | 戴森技术有限公司 | Fan assembly |
| CN107237765A (en) * | 2017-06-27 | 2017-10-10 | 四川建筑职业技术学院 | A kind of ventilation fan with coordinated type tuyere valve |
| CN207728588U (en) * | 2017-12-29 | 2018-08-14 | 浙江惠创风机有限公司 | A kind of roof ventilator automatically adjusting air output |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633850B2 (en) * | 1988-03-02 | 1994-05-02 | 三洋電機株式会社 | Device elevation angle adjustment device |
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2018
- 2018-09-07 CN CN201811041532.4A patent/CN109139521B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808808A (en) * | 2011-06-02 | 2012-12-05 | 任文华 | Bladeless fan |
| CN104279145A (en) * | 2013-07-09 | 2015-01-14 | 戴森技术有限公司 | Fan assembly |
| CN107237765A (en) * | 2017-06-27 | 2017-10-10 | 四川建筑职业技术学院 | A kind of ventilation fan with coordinated type tuyere valve |
| CN207728588U (en) * | 2017-12-29 | 2018-08-14 | 浙江惠创风机有限公司 | A kind of roof ventilator automatically adjusting air output |
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| Publication number | Publication date |
|---|---|
| CN109139521A (en) | 2019-01-04 |
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