WO2022142376A1

WO2022142376A1 - Fan

Info

Publication number: WO2022142376A1
Application number: PCT/CN2021/113311
Authority: WO
Inventors: 麦焕; 张晓泉; 陈宇强; 陈中兆; 刘阳清
Original assignee: 珠海格力电器股份有限公司
Priority date: 2020-12-31
Filing date: 2021-08-18
Publication date: 2022-07-07
Also published as: CN112628209A

Abstract

Disclosed is a fan. The fan comprises: an air outlet frame which is provided with a first air outlet (b) provided in an extending direction of the air outlet frame, and a second air outlet (a) provided in a peripheral surface of the air outlet frame; and several flow deflectors (4) arranged in the air outlet frame and arranged between the first air outlet and the second air outlet, wherein the flow deflectors are driven by an external force to have a first state of sealing the first air outlet and guiding fluid to the second air outlet and a second state of opening the first air outlet. According to the fan, a first air outlet and a second air outlet are provided in an air outlet frame, and the opening/closing of the first air outlet is controlled by means of a flow deflector structure. When the first air outlet is opened, the fan generates air output at an angle in a direction of the first air outlet, and when the first air outlet is closed, airflow flows out of the second air outlet under the action of the flow deflectors; and the second air outlet is provided in a peripheral surface of the air outlet frame and can meet the requirement for air output in a circumferential 360-degree range of the fan, so that an air outlet angle is increased to meet the requirement of air blowing in different directions for a user.

Description

fan

This disclosure claims the priority of a Chinese patent application with the application number 202011645440.4 and the invention titled "Fan" filed with the China Patent Office on December 31, 2020, the entire contents of which are incorporated by reference in this disclosure.

technical field

The present disclosure relates to the technical field of household appliances, in particular to a fan.

Background technique

The main structure of the air circulation fan includes a drive motor, a turbine fan, a guide grille and a cylindrical casing. The air circulation fan can make the wind blow out in a spiral shape in a certain direction, and with the stirring of the fan blades, it can finally form a spiral columnar wind. The air blown by the air circulation fan has a long distance and good directionality.

Most of the existing circulating fans have only one air outlet in one direction, and the air outlet direction is single, which cannot meet the needs of users.

SUMMARY OF THE INVENTION

Therefore, the present disclosure aims to provide a fan that discharges air from multiple angles, thereby providing a fan.

In order to solve the problem of a single air outlet direction of the existing circulating fan, the present disclosure provides a fan, comprising: an air outlet frame body, the air outlet frame body has: a first air outlet arranged in the extending direction of the air outlet frame body an air outlet; a second air outlet arranged on the peripheral surface of the air outlet frame; the fan further includes: a plurality of guide fins, which are arranged in the air outlet frame and are arranged on the first air outlet and all the air outlets. Between the second air outlets, the deflector is driven by an external force to have a first state of closing the first air outlet and guiding the fluid to the second air outlet and a second state of opening the first air outlet .

In some embodiments, the air outlet frame includes a first frame body and a second frame body that are butted against each other, and the first frame body and the second frame body are configured to form an air outlet channel.

In some embodiments, the first air outlet is arranged on an axial end face of the first frame, and the second air outlet is arranged on a peripheral surface of the second frame.

In some embodiments, the first frame body has an annular first frame and a first central axis disposed at the center of the first frame;

The second frame body has an annular second frame and a second central axis arranged at the center of the second frame;

An annular flow channel is formed between the first frame and the first central shaft, and between the second frame and the second central shaft.

In some embodiments, along the outflow direction of the airflow, a plurality of the guide vanes are radially arranged in the annular flow channel, wherein the guide vanes are driven by an external force with the radial direction of the guide vanes as the center of rotation Rotation occurs.

In some embodiments, the guide vane is configured as a fan ring structure, and two opposite arc edges of the guide vane are respectively provided with a first rotating part and a second rotating part;

The first central shaft is provided with a plurality of first rotating grooves along its circumferential direction, and the second rotating portion is rotatably disposed on the first rotating grooves;

The second frame is provided with a plurality of second rotating grooves along its circumferential direction, and the first rotating portion is rotatably disposed on the second rotating grooves.

In some embodiments, in the outflow direction of the airflow, the first rotating groove is disposed below the second rotating groove.

In some embodiments, a drive assembly is further included, a drive part is provided at the shaft end of the second rotating part away from the body of the guide vane, and the drive assembly drives the drive part.

In some embodiments, the first bottom bracket is configured as a hollow structure, and the drive assembly is disposed within the first bottom bracket.

In some embodiments, the driving portion is configured as a first tooth portion disposed at an axial end of the second rotating portion away from the body of the guide vane.

In some embodiments, an annular groove is provided at the second center shaft corresponding to the first rotation groove, and the first tooth portion is accommodated in the annular groove.

In some embodiments, the drive assembly includes:

a drive motor, which is arranged in the first center shaft, and a gear is arranged on the drive motor;

The turntable is arranged between the first central shaft and the second central shaft, the end surface of the turntable facing the second central shaft is provided with a plurality of second tooth portions, and the second tooth portions are connected to the second central shaft. the first tooth meshes;

The turntable also includes a third tooth portion that meshes with the gear.

In some embodiments, the driving part is configured as a lever disposed at an axial end of the second rotating part away from the body of the guide vane.

In some embodiments, the lever includes:

a connecting part arranged on the second rotating part;

and a toggle portion vertically disposed on the connecting portion, and the drive assembly drives the toggle portion.

In some embodiments, the drive assembly includes:

The turntable is arranged between the first central shaft and the second central shaft, a plurality of dial teeth are arranged at intervals in the circumferential direction of the rotary dial, and a dial groove is formed between two adjacent dial teeth. The part is clamped in the toggle slot;

The turntable also includes a toothed portion that meshes with the gear.

In some embodiments, a limiting plate is provided on a side of the toggle slot close to the second frame body, and the limit plate is used to restrict the toggle portion from leaving the toggle slot.

In some embodiments, the driving assembly further includes a connecting member disposed between the driving motor and the turntable, a rotating shaft is protruded from the connecting member, and the turntable and the second central shaft are respectively provided on the connecting member. A first shaft hole and a second shaft hole for the rotating shaft to pass through are provided.

In some embodiments, a limit block protrudes from the end face of the connecting member toward the turntable, and a limit protrusion that cooperates with the limit block is provided on the turntable to limit the rotation of the turntable. Rotation angle.

In some embodiments, in the radial direction of the air outlet channel, a plurality of the guide vanes are rotatably arranged on the second frame body at intervals, and when the plurality of the guide vanes are in the first state, they are constructed to The baffle structure for blocking the air outlet channel.

In some embodiments, a space is provided at the mating splices of two adjacent said guide vanes.

In some embodiments, two opposite sides of the guide vane are respectively provided with a first rotating part and a second rotating part;

Several rotating grooves are arranged on the inner side of the second frame body along the circumferential direction, and the first rotating part and the second rotating part are rotatably arranged in the two oppositely arranged rotating grooves.

In some embodiments, at least one connecting piece is further included, which is connected to a plurality of the guide fins and is suitable for linking with the plurality of the guide fins.

In some embodiments, the connector includes:

The body, in the shape of a long strip, is arranged below the guide plate;

A plurality of connecting parts are arranged on the body at intervals, and the positions are arranged corresponding to the guide plates;

A first connection structure is provided on the connection portion, and a second connection structure that cooperates with the first connection structure is provided on the guide plate.

In some embodiments, the first connecting structure and the second connecting structure are configured as shaft hole matching structures.

In some embodiments, a driving structure is further included, which is arranged on the second frame body and is suitable for driving the rotation of the guide vane.

In some embodiments, the drive structure includes:

a drive motor, arranged on the second frame body;

The first driving gear is arranged on the motor shaft of the driving motor, and its tooth end acts on the connecting piece or at least one of the guide vanes.

In some embodiments, it also includes a second drive gear rotatably disposed on the second frame body, the second drive gear meshes with the first drive gear, and a tooth end of the second drive gear Acting on the connecting piece or at least one of the baffles.

In some embodiments, an air outlet grille disposed at the first air outlet is also included.

In some embodiments, a casing is further included, the air outlet frame is arranged on the upper end of the casing, and the lower end of the casing is provided with an air inlet.

In some embodiments, a fan assembly is further included, which is arranged in the casing and is adapted to drive the outside air to flow into the air outlet frame through the air inlet portion.

In some embodiments, a mounting bracket is provided at a central position of the casing, and the fan assembly is provided on the mounting bracket.

In some embodiments, the blower assembly includes:

a fan, one end of the mounting bracket facing the lower end of the casing is provided with an accommodating groove, and the fan is installed in the accommodating groove;

The impeller is arranged on the rotating shaft of the fan, a through hole is provided on the bottom of the accommodating groove, and the rotating shaft passes through the through hole and acts on the impeller.

In some embodiments, the fan assembly further includes:

A fastener is provided at the shaft end of the rotating shaft to prevent the impeller from being disengaged from the rotating shaft.

In some embodiments, a base is further included, and the casing is rotatably disposed on the base.

In some embodiments, an arc-shaped slideway is provided on the base, and a slider matched with the arc-shaped slideway is correspondingly formed on the casing.

The technical solution of the present disclosure has the following advantages:

1. The fan in the present disclosure comprises: an air outlet frame body, and the air outlet frame body has: a first air outlet arranged in the extending direction of the air outlet frame body; a second air outlet arranged on the peripheral surface of the air outlet frame body; A plurality of guide fins are arranged in the air outlet frame and between the first air outlet and the second air outlet, and the guide fins are driven by external force to have a first state of closing the first air outlet and guiding the fluid to the second air outlet and a second state of opening the first air outlet.

In the fan of the present disclosure, the first air outlet and the second air outlet are arranged on the air outlet frame, and the opening and closing of the first air outlet is controlled by the guide fin structure. When the first air outlet is opened, the fan is in the first outlet. The direction of the air outlet forms an angled air outlet. When the first air outlet is closed, the air flows out from the second air outlet under the action of the guide plate, because the second air outlet is formed on the periphery of the air outlet frame. On the surface, it can satisfy the air outlet within the circumferential 360-degree range of the fan, so the fan in the present disclosure increases the air outlet angle to meet the user's blowing requirements in different directions.

2. The air outlet frame of the fan in the present disclosure includes a first frame body and a second frame body that are butted against each other. The first frame body and the second frame body are constructed as an air outlet channel, and the first frame body and the second frame body The setting of the air outlet is convenient to disassemble the air outlet frame, so as to clean the dust accumulation in the air outlet channel and replace the corresponding parts.

3. In the fan of the present disclosure, the first air outlet is arranged on the axial end face of the first frame, and the second air outlet is arranged on the peripheral surface of the second frame. Different air outlets are arranged on different frame structures. When the above two air outlets need to be cleaned, they can be cleaned separately to prevent the air outlets from being arranged on the same structure. The structure is too complicated and there is a dead angle for cleaning. The problem.

4. In the fan of the present disclosure, along the outflow direction of the air flow, a plurality of guide vanes are radially arranged in the annular flow channel, wherein the guide vanes are driven by an external force to rotate with the radial direction of the guide vanes as the rotation center. The guide vane is rotatable in the annular air duct. When the fan is not working, the guide vane rotates, and several guide vanes are spliced to seal the annular air duct, thereby preventing dust from passing through the air outlet of the outlet grille. Into the air duct, affecting the use of fans, etc.

5. In the fan of the present disclosure, the first rotating groove is arranged below the second rotating groove in the direction of the outflow of the airflow. The first turning slot is lower than the second turning slot, which causes the guide vanes installed on the first turning slot and the second turning slot to lift up toward one end of the second frame body. It can guide the airflow to the side air outlet well, increase the air volume of the side air outlet, and reduce the noise caused by the collision between the airflow and the air duct wall.

6. The cross-sectional shape of the air outlet channel in the air guide structure in the fan in the present disclosure is circular, and when several guide vanes are in the first state, a circular baffle is constructed to block the air outlet channel, and the circular air outlet flows. The design of the channel is conducive to the smooth flow of the gas, and when several baffles are in the first state, they can be spliced with each other to form a circular baffle structure, so as to realize the shape matching with the circular flow channel, so as to ensure the air outlet flow channel. Sealing effect, thereby improving the dustproof effect.

7. In the fan in the present disclosure, there is a space avoidance at the mating splicing of two adjacent guide vanes. On the one hand, the space avoidance can avoid the interference problem of the adjacent guide vanes during the rotation process, and on the other hand, the space avoidance It can make the splicing between the adjacent guide plates better, reduce the gap of the splicing, and improve the dustproof effect.

8. In the fan in the present disclosure, the air guide structure in the present invention further includes at least one connecting piece, which is connected to a plurality of guide fins and is suitable for linking a plurality of guide fins. The arrangement of the connecting piece realizes the simultaneous driving of a plurality of guide vanes and improves the driving efficiency of the guide vanes.

Description of drawings

In order to more clearly illustrate the technical solutions in the specific embodiments of the present disclosure or related technologies, the following briefly introduces the accompanying drawings required in the description of the specific embodiments or related technologies. Obviously, the accompanying drawings in the following description are For some embodiments of the present disclosure, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is an exploded view of the fan in Embodiment 1 provided by the present disclosure;

FIG. 2 is a schematic structural diagram of the first state of the guide vane in Embodiment 1 provided by the present disclosure;

3 is a schematic structural diagram of the second state of the guide vane in Embodiment 1 provided by the present disclosure;

4 is a schematic structural diagram of the first frame body in

Embodiments

1 and 2 provided by the present disclosure;

5 is a schematic structural diagram of the second frame in

Embodiments

1 and 2 provided by the present disclosure;

6 is a schematic structural diagram of the guide vane in Embodiment 1 provided by the present disclosure;

7 is a schematic diagram of the closed state of the guide vane in Embodiment 1 provided by the present disclosure;

8 is a schematic structural diagram of the turntable in Embodiment 1 provided by the present disclosure;

9 is a schematic structural diagram of the outlet grille in

Embodiments

1 and 2 provided by the present disclosure;

10 is a schematic structural diagram of the connector in

Embodiments

1 and 2 provided by the present disclosure;

11 is a schematic structural diagram of the drive motor in

Embodiments

1 and 2 provided by the present disclosure;

12 is a cross-sectional view of the fan in Embodiment 1 provided by the present disclosure;

13 is an exploded view of the fan in Embodiment 2 provided by the present disclosure;

14 is a schematic structural diagram of the first state of the guide vane in Embodiment 2 provided by the present disclosure;

15 is a schematic structural diagram of the second state of the guide vane in Embodiment 2 provided by the present disclosure;

16 is a schematic structural diagram of the guide vane in Embodiment 2 provided by the present disclosure;

17 is a schematic diagram of the closed state of the guide vane in Embodiment 2 provided by the present disclosure;

18 is a schematic structural diagram of the turntable in Embodiment 2 provided by the present disclosure;

19 is a cross-sectional view of the fan in Embodiment 2 provided by the present disclosure;

20 is an exploded view of the fan in Embodiment 3 provided by the present disclosure;

21 is a schematic structural diagram of the first state of the guide vane in Embodiment 3 provided by the present disclosure;

22 is a schematic structural diagram of the second state of the guide vane in Embodiment 3 provided by the present disclosure;

23 is a cross-sectional view of the first state of the guide vane in Embodiment 3 provided by the present disclosure;

24 is a cross-sectional view of the second state of the guide vane in Embodiment 3 provided by the present disclosure;

25 is a schematic structural diagram of the first frame body in Embodiment 3 provided by the present disclosure;

26 is a schematic diagram of the open state of the guide vane in Embodiment 3 provided by the present disclosure;

FIG. 27 is a schematic structural diagram of a connector in Embodiment 3 provided by the present disclosure;

FIG. 28 is an exploded view of the drive assembly in Embodiment 3 provided by the present disclosure;

29 is a cross-sectional view of the fan in Embodiment 3 provided by the present disclosure.

30 is an exploded view of the base, the casing and the fan assembly in

Embodiments

1, 2, and 3 provided by the present disclosure;

31 is a schematic structural diagram of the casing in

Embodiments

1, 2, and 3 provided by the present disclosure;

FIG. 32 is a schematic structural diagram of the bases in

Embodiments

1, 2, and 3 provided by the present disclosure.

Explanation of reference numerals in Embodiment 1:

1-outlet grille;

2- the first frame body; 21- the first frame; 22- the first central axis; 221- the first rotation slot;

3-Second frame body; 31-Second frame; 32-Second central axis; 311-Second rotation groove; 321-Annular groove; 322-Second shaft hole;

4- guide vane; 41- first rotating part; 42- second rotating part; 43- first tooth part;

5-drive assembly; 51-drive motor; 52-gear; 53-turntable; 531-second tooth part; 532-third tooth part; 533-first shaft hole; 534-limiting protrusion; 54-connector ; 541 - shaft; 542 - limit block.

Explanation of reference numerals in Embodiment 2:

1-outlet grille;

4- guide vane; 41- first rotating part; 42- second rotating part; 43- toggle lever; 431- connecting part; 432- toggle part;

5-drive assembly; 51-drive motor; 52-gear; 53-turntable; 531-tooth; 532-tooth; 533-first shaft hole; 534-limit hole; 535-toggle slot; 536-limit Position plate; 54-connector; 541-shaft; 542-limit block.

Explanation of reference numerals in embodiment 3

1-outlet grille;

2- The first frame;

3-Second frame body; 31-Rotation groove;

4- guide vane; 41- first rotating part; 42- second rotating part; 43- second connecting structure; 5- driving assembly; 51- driving motor; 52- first driving gear; 53- second driving gear ;

6-connector; 61-body; 62-connecting part; 63-first connecting structure.

Examples share reference numerals:

7-shell; 71-air inlet; 72-slider;

8-fan assembly; 81-fan; 82-impeller; 83-fastener;

9- mounting bracket;

10-base; 101-arc slide.

Detailed ways

The technical solutions of the present disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the present disclosure. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present disclosure, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present disclosure described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in FIGS. 1 to 12 and FIGS. 30 to 32 , a fan provided in this embodiment includes: an air outlet frame body, and the air outlet frame body has: a first outlet arranged in the extending direction of the air outlet frame body The air outlet; the second air outlet arranged on the peripheral surface of the air outlet frame; a plurality of guide fins 4 are arranged in the air outlet frame and between the first air outlet and the second air outlet, and the guide fins 4 are subject to external force The drive has a first state closing the first air outlet and directing fluid to the second air outlet and a second state opening the first air outlet. The fan sets the first air outlet b and the second air outlet a on the air outlet frame, and controls the opening and closing of the first air outlet b through the guide fin structure. When the first air outlet b is opened, the fan is in the first outlet. The direction of the air outlet b forms an angle of air outlet. When the first air outlet b is closed, the air flows out from the second air outlet a under the action of the guide plate, because the second air outlet a is formed in the air outlet. On the peripheral surface of the frame body, it can satisfy the air outlet within a range of 360 degrees in the circumferential direction of the fan, so the fan in this embodiment increases the air outlet angle to meet the user's blowing requirements in different directions.

It should be noted that the air outlet frame is a frame structure arranged on the fan base 10, and an air outlet channel is constructed inside the air outlet frame, and the air flow enters the air outlet frame body from the base 10 and then enters the outside world.

It should be noted that the fan in this embodiment is a circulating fan, and a fan is arranged at the air inlet at the lower end of the circulating fan to introduce the air flow from the outside into the air duct and flow out to the outside through the air outlet grill in this embodiment. As shown in Figure 12, the first air outlet b is arranged in the axial direction of the rotating shaft of the fan, and the airflow absorbed by the fan can directly flow out from the first air outlet b to the outside to realize the air outlet function. The second air outlet a is arranged on the peripheral surface of the air outlet frame, and needs to be guided by the guide fins to form an air outlet in the peripheral direction of the head assembly of the fan. As a variant, the fan in this embodiment is also a floor fan, a desk fan, and the like.

In some embodiments, the air outlet frame includes a first frame body 2 and a second frame body 3 that are butted against each other. The first frame body 2 and the second frame body 3 are constructed to form an air outlet channel. The arrangement of the second frame body 3 can facilitate the disassembly of the air outlet frame body, so as to clean the dust accumulation in the air outlet flow channel and replace the corresponding parts. The first air outlet b is arranged on the axial end surface of the first frame 21 , and the second air outlet a is arranged on the peripheral surface of the second frame 31 . Different air outlets are arranged on different frame structures. When the above two air outlets need to be cleaned, they can be cleaned separately to prevent the air outlets from being arranged on the same structure. The structure is too complicated and there is a dead angle for cleaning. The problem.

As shown in Figure 4 and Figure 5, it shows the specific structure of the first frame body 2 and the second frame body 3:

As shown in FIG. 4 , the first frame body 2 has an annular first frame 21 , an upper end of the first frame 21 is provided with an installation groove, and the central area of the installation groove is formed as a first air outlet b. The outlet grill 1 is installed in the installation groove on the first frame 21 . A first center shaft 22 is disposed at the center of the first frame 21, and a number of spokes are bridged between the peripheral surface of the first center shaft 22 and the inner side of the first frame 21. The number of spokes in this embodiment is four, as Deformation, other numbers of spokes are also possible, as long as the support and fixation of the first central shaft 22 can be achieved.

As shown in FIG. 5 , the second frame body 3 has an annular second frame 31 , and the upper end of the second frame 31 is machined with mounting holes, which are installed in cooperation with the lower end surface of the first frame 21 . A second central axis 32 is arranged in the center of the second frame 31; a number of spokes are bridged between the peripheral surface of the second central shaft 32 and the inner side of the second frame 31, and the number of spokes in this embodiment is four, as a deformation , other numbers of spokes are also acceptable, as long as the support and fixation of the second central axis 32 can be realized. In some embodiments, several strip-shaped holes are processed on the peripheral surface of the second frame 31, and the above-mentioned strip-shaped holes are constructed as the above-mentioned second air outlet a, so as to realize the peripheral air outlet function.

Therefore, in this embodiment, an annular flow channel is formed between the inner side of the first frame 21 and the peripheral surface of the first central shaft 22, and between the inner side of the second frame 31 and the peripheral surface of the second central shaft 32, so as to be used for the fan. incoming air flow through.

On the basis of the above-mentioned embodiments, as defined in some embodiments, in this embodiment, a plurality of guide vanes 4 are radially arranged in the annular flow channel; The direction of rotation is the center of rotation, and the plurality of guide vanes 4 have a first state of closing the annular flow channel and a second state of opening the annular flow channel under the rotation preset angle. In some embodiments, the guide vane 4 realizes the opening and closing of the annular air duct in the axial flow direction of the circulating fan. Specifically, when the air duct in the axial flow direction needs to be opened, as shown in FIG. 3 , the guide vane 4 is driven by an external force to rotate a certain angle, and the angle here is the blade surface of the guide vane and the flow direction of the fluid. When the above-mentioned included angle is not 90 degrees, the air ducts are in an open state, and when it is 90 degrees, several guide vanes are butted together to realize the closure of the annular flow channel. Therefore, in this embodiment, a guide vane is arranged below the air outlet grille, and the guide vane is rotatable in the annular air duct. When the fan is not working, the guide vane rotates, and several guide vanes are spliced to realize the circulation of the annular air duct. The duct is closed, thereby preventing dust from entering the air duct through the air outlet of the air outlet grille, affecting the use of fans, etc., and at the same time realizing the function of the second air outlet a.

On the basis of the above embodiment, as a further limitation, as shown in FIG. 6 , the specific structure of the guide vane 4 is shown. In this embodiment, the guide vane 4 is configured as a fan ring structure. A first rotating part 41 and a second rotating part 42 are respectively provided on the two opposite arc edges of the shaft, and the first rotating part 41 and the second rotating part 42 are both rotating shaft structures. The fan ring structure in this embodiment is simple to process, and the fan ring structure can be assembled into a ring structure to better fit with the annular flow channel and block the annular flow channel, thereby improving the sealing performance of the annular flow channel. Improve dustproof effect.

On the basis of the above-mentioned embodiment, as a further limitation, the guide vanes 4 in this embodiment are installed on the first frame body 2 and the second frame body 3 . Specifically, as shown in FIG. 4 , the first central axis 22 is provided with a number of first rotating grooves 221 along its circumferential direction, and the second rotating part 42 is rotatably disposed on the first rotating groove 221. While the first rotating groove 221 supports the first rotating part 41, the The two rotating parts 42 can rotate in the first rotating groove 221, the structure is simple, and the guide vane is easy to install.

On the basis of the above-mentioned embodiment, as a further limitation, as shown in FIG. 5 , a plurality of second rotating grooves 311 are provided on the second frame 31 along the circumferential direction thereof, and the first rotating portion 41 is rotatably disposed on the second frame 31 . Rotate groove 311. The second rotating groove 311 can also realize the support of the first rotating part 41 , and has a simple structure and convenient installation of the guide vane.

In some implementations, in the present embodiment, the first rotating groove 221 is disposed below the second rotating groove 311 in the direction of airflow outflow. The first rotating groove 221 is set lower than the second rotating groove, which causes the guide vanes installed on the first rotating groove 221 and the second rotating groove to lift up toward one end of the second frame body 3. When the guide vane 4 is in the closed state At the same time, it can better guide the air flow to the side air outlet, increase the air output of the side air outlet, and reduce the noise caused by the collision between the air flow and the air duct wall.

On the basis of the above-mentioned embodiment, as a further limitation, in order to facilitate the driving of the guide vane, the drive assembly 5 is also included. As shown in FIG. 6 , the second rotating part 42 is away from the shaft end of the body of the guide vane 4 A first tooth portion 43 is provided at the position, the driving component 5 drives the first tooth portion 43 , and the driving component 5 drives the first tooth portion 43 to realize the driving of the guide vane 4 .

In this embodiment, the first central shaft 22 is constructed as a hollow structure, the driving assembly 5 is arranged in the first central shaft 22 , and the first central shaft 22 is covered on the driving assembly 5 , which can protect the driving assembly 5 from dust. Effect.

In some embodiments, the second central shaft 32 in this embodiment is provided with an annular groove 321 corresponding to the first rotation groove 221 , the first tooth portion 43 is accommodated in the annular groove 321 , and the first central shaft 22 is covered at the On the annular groove 321 , the dust protection effect on the first tooth portion 43 can be realized.

On the basis of the above embodiment, as a further limitation, as shown in FIG. 8 , the drive assembly 5 includes: a drive motor 51 , which is arranged in the first center shaft 22 , and a gear 52 is arranged on the drive motor 51 , and the gear 52 is installed on the first center shaft 22 . The motor shaft of the driving motor 51 is fitted with an interference fit or a key. The turntable 53 is arranged between the first central shaft 22 and the second central shaft 32 , and a plurality of second tooth portions 531 are provided on the end surface of the turntable 53 facing the second central shaft 32 . The second tooth portions 531 and the first tooth portion 43 Meshing; the middle part of the turntable is machined into a half-moon-shaped notch, and a third tooth 532 meshing with the gear 52 is machined on the inner side of the notch. The turntable 53 rotates, and the turntable 53 drives the guide vane 4 to rotate through the second tooth portion 531 , so as to adjust the rotation angle of the guide vane 4 .

On the basis of the above-mentioned embodiment, as a further limitation, as shown in FIG. 10 , the drive assembly 5 further includes a connecting member 54 arranged between the driving motor 51 and the turntable 53 . 53 and the second central shaft 32 are respectively provided with a first shaft hole 533 and a second shaft hole 322 for the rotating shaft 541 to pass through. First, the driving motor 51 is locked on the connecting piece 54 by screws, and the connecting piece 54 is machined with a through hole for the motor shaft to pass through. The second shaft hole 322 is a blind hole structure, the shaft end of the rotating shaft 541 abuts in the blind hole, and the upper end of the first central shaft 22 is open. When the outlet grille 1 is installed on the first frame body 2, it is pressed against the drive On the motor, the connecting piece 54 is then abutted on the second shaft hole 322 of the second central shaft 32 to realize the fixing of the connecting piece 54 . The turntable 53 is rotatably installed between the connecting piece 54 and the upper end surface of the second central shaft 32 .

On the basis of the above embodiment, as a further limitation, as shown in FIG. 8 and FIG. 10 , a limiting block 542 is protruded from the end surface of the connecting member 54 toward the turntable 53 , and the turntable 53 is provided with a limiting block 542 . The cooperating limiting protrusions 534 , when the turntable 53 rotates at a certain angle, the limiting protrusions 534 thereon will be blocked by the limiting blocks 543 to limit the rotation angle of the turntable 53 .

On the basis of the above-mentioned embodiment, as a further limitation, as shown in FIG. 30 and FIG. 31 , a casing 7 is also included. The air outlet frame is detachably installed on the upper end of the casing 7, and the two are screwed together. are locked together. The lower end of the casing 7 is provided with an air inlet portion 71 . The air inlet portion 71 is a common grille structure, and the grille can have a certain inclination angle to facilitate the diversion of external airflow. The shape of the air inlet part 71 can also be a common round hole shape, etc., which can be designed according to the requirements of the air inlet volume. An accommodating space is formed in the casing 7 to be suitable for placing relevant structural components in the fan.

On the basis of the above embodiment, as a further limitation, the fan assembly 8 is further included, which is arranged in the casing 7 and is suitable for driving the outside air to flow into the air outlet frame through the air inlet portion 71 . In order to realize the installation of the fan assembly 8 , a mounting frame 9 is installed at the central position of the casing 7 , and the fan assembly 8 is arranged on the mounting frame 9 .

On the basis of the above embodiment, as a further limitation, the fan assembly 8 includes: a fan 81 , an accommodation groove is provided at the end of the mounting bracket 9 facing the lower end of the casing 7 , and the fan 81 is installed in the accommodation groove, and the accommodation groove The bottom of the groove is provided with a mounting hole, which cooperates with the fixing hole provided on the fan 81, and the fan 81 is fixed on the groove bottom of the accommodating groove by means of screw locking. The impeller 82 is arranged on the rotating shaft of the fan 81 , a through hole is provided on the bottom of the accommodating groove, and the rotating shaft passes through the through hole and acts on the impeller 82 . The impeller 82 is provided with a shaft hole, and the rotary shaft and the shaft hole adopt interference fit or key fit or D-type shaft hole fit.

On the basis of the above-mentioned embodiment, as a further limitation, the fan assembly 8 further includes: a fastener 83 , the fastener 83 is arranged at the shaft end of the rotating shaft to prevent the impeller 82 from being disengaged from the rotating shaft, and the fastener 83 It can be fixed at the shaft end by means of interference fit, or fixed at the shaft end by means of screw connection.

On the basis of the above-mentioned embodiment, as a further limitation, a base 10 is also included, and the casing 7 is rotatably arranged on the base 10 . An arc-shaped slideway 101 is provided on the base 10 , and a sliding block 72 matched with the arc-shaped slideway 101 is correspondingly formed on the casing 7 to further increase the air outlet range of the fan.

Example 2

As shown in Figures 4, 5, 9-11, 13-19, and 30-32, another type of fan provided in this embodiment is compared with the fan structure in Embodiment 1. The driving mode of the guide vane rotation has been changed, as follows:

As shown in FIG. 16 , the specific structure of the guide vane 4 is shown. In this embodiment, the guide vane 4 is configured as a fan ring structure, and the two opposite arc edges of the guide vane 4 are respectively provided with first rotating parts 41 and the second rotating part 42, the first rotating part 41 and the second rotating part 42 are all rotating shaft structures. The fan ring structure in this embodiment is simple to process, and the fan ring structure can be assembled into a ring structure to better fit with the annular flow channel and block the annular flow channel, thereby improving the sealing performance of the annular flow channel. Improve dustproof effect.

In this embodiment, in order to facilitate the driving of the guide vane, a drive assembly 5 is also included. As shown in FIG. 16 , a lever 43 is provided at the shaft end of the second rotating portion 42 away from the body of the guide vane 4 , and the drive assembly 5 The lever 43 is driven, and the lever 43 is driven by the driving assembly 5 to realize the driving of the guide vane 4 . The lever 43 in this embodiment includes: a connecting portion 431 disposed on the second rotating portion 42, and the connecting portion 431 is an elongated plate structure integrally formed at the shaft end of the second rotating portion 42; The toggle portion 432 on the 431, the toggle portion 432 is a common cylindrical rod-shaped structure, and the drive assembly 5 drives the toggle portion 432.

As shown in FIG. 18 , the drive assembly 5 includes: a drive motor 51 , which is arranged in the first center shaft 22 , a gear 52 is provided on the drive motor 51 , and the gear 52 is installed on the motor shaft of the drive motor 51 with interference fit or keyed way. The turntable 53 is arranged between the first central shaft 22 and the second central shaft 32. The turntable 53 is machined with a number of shifting teeth 531 in the circumferential direction. There is a gap between two adjacent shifting teeth. The part 432 is clamped in the toggle slot 535, and when the turntable 53 rotates, it drives the toggle rod 43 clamped in the toggle slot 535 to rotate. In some embodiments, the middle part of the turntable is machined into a half-moon-shaped notch, and a tooth 532 meshing with the gear 52 is machined on the inner side of the notch. The turntable 53 rotates, and the turntable 53 drives the guide vane 4 to rotate through the shifting teeth 531 , so as to realize the adjustment of the rotation angle of the guide vane 4 .

On the basis of the above embodiment, as a further limitation, a limit plate 536 is provided on the side of the toggle slot 535 close to the second frame body, and the limit plate 536 is connected between the two toggle teeth 531. When the 432 rotates in the toggle slot 535 , the limiting plate 536 can restrict the movement stroke of the toggle portion 432 , so as to restrict the toggle portion 432 from leaving the toggle slot 535 .

As shown in FIG. 10 , the drive assembly 5 further includes a connecting piece 54 disposed between the drive motor 51 and the turntable 53 , a rotating shaft 541 is protruded from the connecting piece 54 , and a rotating shaft 541 is provided on the turntable 53 and the second central shaft 32 respectively. 541 passes through the first shaft hole 533 and the second shaft hole 322 . First, the driving motor 51 is locked on the connecting piece 54 by screws, and the connecting piece 54 is machined with a through hole for the motor shaft to pass through. The second shaft hole 322 is a blind hole structure, the shaft end of the rotating shaft 541 abuts in the blind hole, and the upper end of the first central shaft 22 is open. When the outlet grille 1 is installed on the first frame body 2, it is pressed against the drive On the motor, the connecting piece 54 is then abutted on the second shaft hole 322 of the second central shaft 32 to realize the fixing of the connecting piece 54 . The turntable 53 is rotatably installed between the connecting piece 54 and the upper end surface of the second central shaft 32 .

On the basis of the above-mentioned embodiment, as a further limitation, a limit block 542 is protruded from the end surface of the connecting member 54 toward the turntable 53, and a limit hole 534 that cooperates with the limit block 542 is provided on the turntable 53. The hole 534 is a circular arc hole. When the connector 54 is installed, the limiting block 542 is movably inserted into the limiting hole 534 and can move in the limiting hole 534 . When the turntable 53 rotates at a certain angle, the limiting blocks 543 on it will be blocked by the limiting holes 534 to limit the rotation angle of the turntable 53 . In some embodiments, the adjustment of the rotation angle range of the turntable 3 can be realized by setting the size of the circular arc hole.

Therefore, in this embodiment, compared with the guide vane structure in Embodiment 1, the driving end of the driven structure is changed from a gear structure to a lever structure, so as to realize the driving of the rotating function of the guide vane.

Example 3

As shown in FIG. 20 to FIG. 32 , another fan provided in this embodiment also includes the following features:

The air outlet frame body, the air outlet frame body has: a first air outlet arranged in the extending direction of the air outlet frame body; a second air outlet arranged on the peripheral surface of the air outlet frame body; The air frame is arranged between the first air outlet and the second air outlet, and the deflector 4 is driven by external force to have a first state of closing the first air outlet and guiding the fluid to the second air outlet, and opening the first air outlet. second state. The fan sets the first air outlet b and the second air outlet a on the air outlet frame, and controls the opening and closing of the first air outlet b through the guide fin structure. When the first air outlet b is opened, the fan is in the first outlet. The direction of the air outlet b forms an angle of air outlet. When the first air outlet b is closed, the air flows out from the second air outlet a under the action of the guide plate, because the second air outlet a is formed in the air outlet. On the peripheral surface of the frame body, it can satisfy the air outlet within a range of 360 degrees in the circumferential direction of the fan, so the fan in this embodiment increases the air outlet angle to meet the user's blowing requirements in different directions.

It should be noted that the fan in the present embodiment is a circulating fan, and a fan is provided at the air inlet at the lower end of the circulating fan, and the air flow of the outside is introduced into the air duct, and flows out to the outside through the air outlet grid in the present embodiment. As shown in FIG. 12 , the first air outlet b is arranged in the axial direction of the rotating shaft of the fan, and the airflow absorbed by the fan can directly flow out from the first air outlet b to the outside to realize the air outlet function. The second air outlet a is arranged on the peripheral surface of the air outlet frame, and needs to be guided by the guide fins to form an air outlet in the peripheral direction of the head assembly of the fan. As a variant, the fan in this embodiment is also a floor fan, a desk fan, and the like.

The difference is that the air outlet flow channel in this embodiment is a common circular flow channel, and in the radial direction of the air outlet flow channel, a plurality of guide vanes 4 are rotatably arranged on the second frame body 3 at intervals, and a plurality of flow guide plates are provided. When the sheet 4 is in the first state, a circular baffle is constructed to block the air outlet channel. The circular air outlet flow channel design is conducive to the smooth flow of the gas, and when the several guide plates 4 are in the first state, they can be spliced with each other to form a circular baffle structure, so as to realize the shape matching with the circular flow channel, thereby The sealing effect of the air outlet channel is ensured, thereby improving the dustproof effect, and ensuring the air outlet of the second air outlet a.

A void 44 is provided at the mating splices of the two adjacent guide vanes 4 . The number of the guide vanes 4 in this embodiment is seven, and the hollows 44 are processed on the three guide vanes 4 in the middle. Because the deflector 4 is designed along the radial direction of the air outlet channel, the closer the deflector 4 is in length to the center of the air outlet channel, the longer the length is, so as to better block the air outlet channel. As a variant, the number of the guide vanes 4 can be set by itself according to the area of the air outlet channel. On the one hand, the void 44 can avoid the interference problem of the adjacent guide vanes 4 during the rotation process. Dustproof effect.

The main body of the guide vane 4 is a common elongated plate structure, and two opposite sides of the guide vane 4 are respectively formed with a first rotating part 41 and a second rotating part 42. In this embodiment, the first rotating part 41 and The second rotating part 42 is a rotating shaft structure, and the two are coaxially arranged to ensure the smoothness of the installation of the guide vane 4 . On the inner side of the second frame body 3, a plurality of rotating grooves 31 are arranged in the circumferential direction. The first rotating part 41 and the second rotating part 42 are rotatably arranged in the two opposite rotating grooves 31. Under the action, the guide vane 4 can rotate in the rotating groove 31 .

In order to realize the simultaneous driving of multiple guide fins and improve the driving efficiency of the guide fins, this embodiment also includes two connecting pieces 6, which are connected to several guide fins 4 and are suitable for linking several guide fins. 4. The seven guide vanes 4 in this embodiment are connected by two connecting pieces 6 respectively with the guide plate 4 in the middle as the dividing line. As a variant embodiment, only one connecting piece 6 can be used to connect all the guide vanes 4 .

The connector 6 in this embodiment includes: a main body 61, which is elongated and arranged below the guide vane 4; a plurality of connecting parts 62 are arranged on the body 61 at intervals, and are arranged corresponding to the guide vane 4 in position; wherein A first connection structure 63 is provided on the connection portion 62 , and a second connection structure 43 that cooperates with the first connection structure 63 is provided on the guide plate 4 . The first connecting structure 63 and the second connecting structure 43 in this embodiment are configured as shaft-hole matching structures. As a modification, the first connection structure 63 and the second connection structure 43 may also be a snap-fit structure or the like. In this embodiment, the first connecting structure 63 is a rotating shaft formed on the connecting portion 62 , and the second connecting portion 43 is a shaft hole formed on the guide plate 4 . Specifically, the second connecting portion 43 is folded over For the ear edge structure, the shaft hole in the above is processed on the ear edge. A sufficient space is reserved between the adjacent connecting parts to prevent the connecting piece 6 from affecting the rotation of the guide vane 4 .

This embodiment also includes a driving structure 5 , which is arranged on the second frame body 3 and is suitable for driving the rotation of the guide vane 4 . The driving structure 5 includes: a driving motor 51, which is arranged on the frame body 1; a first driving gear 52, which is arranged on the motor shaft of the driving motor 51. The tooth ends can also act on multiple guide vanes 4 at the same time. As a variant, the tooth ends mentioned above can also act on the connecting piece 6 .

This embodiment also includes a second drive gear 53 rotatably arranged on the second frame body 3, the second drive gear 53 meshes with the first drive gear 52, and the tooth end of the second drive gear 53 acts on the guide vane 4, since there are two connecting pieces 4 in this embodiment, and the seven guide vanes 4 are divided into two wholes, two gears are respectively required for driving.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. However, the obvious changes or changes derived from this are still within the protection scope of the present disclosure.

Claims

A fan comprising:

An air outlet frame, the air outlet frame has:

a first air outlet arranged in the extending direction of the air outlet frame;

a second air outlet arranged on the peripheral surface of the air outlet frame;

The fan also includes:

A plurality of guide fins (4) are arranged in the air outlet frame and between the first air outlet and the second air outlet, and the guide fins (4) are driven by an external force to seal the air outlet. A first state in which the first air outlet directs fluid to the second air outlet and a second state in which the first air outlet is opened.
The fan according to claim 1, wherein the air outlet frame body comprises a first frame body (2) and a second frame body (3) that are butted against each other, the first frame body (2) and the first frame body (2) and the second frame body (3) The two frame bodies (3) are constructed as air outlet channels.
The fan according to claim 2, wherein the first frame body (2) has an annular first frame (21) and a first central axis (22) arranged in the center of the first frame (21);

The second frame body (3) has an annular second frame (31) and a second central axis (32) arranged in the center of the second frame (31);

An annular flow channel is formed between the first frame (21) and the first central axis (22), and between the second frame (31) and the second central axis (32).
The fan according to claim 3, wherein the first air outlet is arranged at the axial end face of the first frame (21), and the second air outlet is arranged at the end of the second frame (31). on the circumference.
The fan according to claim 4, wherein, along the outflow direction of the airflow, a plurality of the guide vanes (4) are radially arranged in the annular flow channel, wherein the guide vanes (4) are driven by an external force to The radiation direction of the guide vane (4) is the center of rotation and the rotation occurs.
The fan according to any one of claims 2-5, wherein the guide vane (4) is configured as a fan ring structure, and two opposite arc edges of the guide vane (4) are respectively provided with a first a rotating part (41) and a second rotating part (42);

The first central shaft (22) is provided with a plurality of first rotating grooves (221) along its circumferential direction, and the second rotating portion (42) is rotatably disposed on the first rotating groove (221);

The second frame (31) is provided with a plurality of second rotating grooves (311) along the circumferential direction thereof, and the first rotating portion (41) is rotatably disposed on the second rotating grooves (311).
The fan according to claim 6, wherein, in the outflow direction of the airflow, the first rotation groove (221) is arranged below the second rotation groove (311).
The fan according to claim 6, further comprising a drive assembly (5), a drive part is provided at the shaft end of the second rotating part (42) away from the body of the guide vane (4), the A drive assembly (5) drives the drive part.
The fan according to claim 8, wherein the first central shaft (22) is configured as a hollow structure, and the driving assembly (5) is arranged in the first central shaft (22).
The fan according to claim 8 or 9, wherein the driving part is configured as a first tooth provided at an axial end of the second rotating part (42) away from the body of the guide vane (4) Section (43).
The fan according to claim 10, wherein an annular groove (321) is provided at the second central shaft (32) corresponding to the first rotation groove (221), and the first tooth portion (43) accommodates in the annular groove (321).
The fan of claim 11, wherein the drive assembly (5) comprises:

a drive motor (51), which is arranged in the first central shaft (22), and a gear (52) is arranged on the drive motor (51);

A turntable (53) is provided between the first central shaft (22) and the second central shaft (32), and an end surface of the turntable (53) facing the second central shaft (32) is provided with a plurality of second teeth (531), the second teeth (531) meshing with the first teeth (43);

The turntable (53) further includes a third tooth portion (532) meshing with the gear (52).
The fan according to claim 8 or 9, wherein the drive portion is configured as a lever ( 43).
The fan according to claim 13, wherein the lever (43) comprises:

a connecting portion (431) provided on the second rotating portion (42);

and a toggle portion (432) vertically arranged on the connection portion (431), and the drive assembly (5) drives the toggle portion (432).
The fan of claim 14, wherein the drive assembly (5) comprises:

A drive motor (51) is arranged in the first center shaft (22), and a gear (52) is provided on the drive motor (51);

A turntable (53) is arranged between the first central shaft (22) and the second central shaft (32), and a plurality of shifting teeth (531) are provided at intervals in the circumferential direction of the turntable (53), two-phase A toggle groove (535) is formed adjacent to the toggle teeth, and the toggle portion (432) is clamped in the toggle groove (535);

The turntable (53) further comprises a tooth portion (532) meshing with the gear (52).
The fan according to claim 15, wherein a limiting plate (536) is provided on a side of the toggle slot (535) close to the second frame body (3), and the limiting plate (536) is used for In order to restrict the toggle portion (432) from disengaging from the toggle slot (535).
The fan according to any one of claims 11-12 and 14-16, wherein the driving assembly (5) further comprises a connecting piece ( 54), a rotating shaft (541) is protruded from the connecting piece (54), and the rotating plate (53) and the second central axis (32) are respectively provided with a rotating shaft (541) for passing through. The first shaft hole (533) and the second shaft hole (322).
The fan according to claim 17, wherein a limiting block (542) is protruded from an end surface of the connecting piece (54) toward the turntable (53), and a limiter block (542) is provided on the turntable (53) with the The limit block (542) cooperates with the limit protrusion (534) to limit the rotation angle of the turntable (53).
The fan according to claim 4, wherein, in the radial direction of the air outlet channel, a plurality of the guide vanes (4) are rotatably arranged on the second frame body (3) at intervals, and a plurality of the When the deflector (4) is in the first state, it is constructed as a baffle structure to block the air outlet flow channel.
The fan according to claim 19, wherein a void (44) is provided at the mating splices of the two adjacent air guide plates (4).
The fan according to claim 20, wherein a first rotating part (41) and a second rotating part (42) are respectively provided on two opposite sides of the guide vane (4);

The inner side of the second frame body (3) is provided with several rotating grooves (31) along the circumferential direction, and the first rotating part (41) and the second rotating part (42) are rotatably arranged in the two rotating grooves (31) arranged opposite to each other.
The fan according to any one of claims 19-21, further comprising at least one connecting piece (6) connected to a plurality of the guide fins (4) and adapted to link with the plurality of the guide fins (4) ).
The fan according to claim 22, wherein the connector (6) comprises:

The body (61), in the shape of a long strip, is arranged below the guide plate (4);

A plurality of connecting parts (62) are arranged on the body (61) at intervals, and are arranged corresponding to the guide vanes (4) in position;

Wherein the connecting portion (62) is provided with a first connecting structure (63), and the guide plate (4) is provided with a second connecting structure (43) that cooperates with the first connecting structure (63). .
The fan according to claim 23, wherein the first connecting structure (63) and the second connecting structure (43) are configured as shaft-hole matching structures.
The fan according to claim 24, further comprising a driving structure (5) arranged on the second frame body (2) and adapted to drive the rotation of the guide vane (4).
The fan according to claim 25, wherein the drive structure (5) comprises:

a drive motor (51), arranged on the second frame body (3);

The first driving gear (52) is arranged on the motor shaft of the driving motor (51), and its tooth end acts on the connecting piece (6) or at least one of the guide vanes (4).
The fan according to claim 26, further comprising a second driving gear (53) rotatably arranged on the second frame body (3), the second driving gear (53) being connected to the first A driving gear (52) is engaged, and the tooth end of the second driving gear (53) acts on the connecting piece (6) or at least one of the guide vanes (4).
The fan according to claim 1, further comprising an air outlet grill (1) arranged at the first air outlet.
The fan according to claim 1, further comprising a casing (7), the air outlet frame is arranged on the upper end of the casing (7), and the lower end of the casing (7) is provided with Air inlet (71).
The fan according to claim 29, further comprising a fan assembly (8), disposed in the casing (7), and adapted to drive the outside air to flow through the air inlet portion (71) toward the Inside the air outlet frame.
The fan according to claim 30, wherein a mounting bracket (9) is provided at a central position of the casing (7), and the fan assembly (8) is provided on the mounting bracket (9).
The fan of claim 31, wherein the fan assembly (8) comprises:

a fan (81), an accommodating groove is provided at one end of the mounting frame (9) facing the lower end of the casing (7), and the fan (81) is installed in the accommodating groove;

The impeller (82) is arranged on the rotating shaft of the fan (81), the groove bottom of the accommodating groove is provided with a through hole, and the rotating shaft passes through the through hole and acts on the impeller (82).
The fan of claim 33, wherein the fan assembly (8) further comprises:

A fastener (83) is provided at the shaft end of the rotating shaft to prevent the impeller (82) from being disengaged from the rotating shaft.
The fan according to claim 29, further comprising a base (10), and the casing (7) is rotatably arranged on the base (10).
The fan according to claim 34, wherein the base (10) is provided with an arc-shaped slide (101), and the casing (7) is correspondingly formed with an arc-shaped slide (101). Mating slider (72).