WO2020042480A1

WO2020042480A1 - Oscillation assembly and tower fan

Info

Publication number: WO2020042480A1
Application number: PCT/CN2018/122932
Authority: WO
Inventors: 肖鸿亮; 陈宇强; 林海利; 郭宏俊; 袁明; 陈中兆; 余丛
Original assignee: 珠海格力电器股份有限公司
Priority date: 2018-08-29
Filing date: 2018-12-22
Publication date: 2020-03-05
Also published as: CN109139530A

Abstract

An oscillation assembly (1) for rotating an air passage assembly (2) of a tower fan relative to a housing (3) of the tower fan. The oscillation assembly (1) comprises a driving device (12) and a limiting structure (15). The driving device (12) is used to drive the air passage assembly (2) to rotate relative to the housing (3). The limiting structure (15) is configured to limit a rotation range of the air passage assembly (2). The oscillation assembly is provided with the limiting structure (15), such that the air passage assembly (2) can be rotated strictly in accordance with a predetermined track and angle, thereby reducing collisions between various parts when the air passage assembly (2) is rotated, prolonging the service life, reducing oscillation errors, and improving user experience.

Description

Moving head assembly and tower fan

This application claims priority from a Chinese patent application filed with the Chinese Patent Office on August 29, 2018, with application number 201810992874.8, and with the invention name "Shaking Head Assembly and Tower Fan", the entire contents of which are incorporated herein by reference.

Technical field

The invention relates to the technical field of air treatment, in particular to a shaking head assembly and a tower fan.

Background technique

At present, most of the tower fans on the market have a crank rocker mechanism for the air outlet shaking head structure. There are “dead spots” during operation, the operation is not smooth, and the sweeping angle is fixed. The exposed air outlet on the appearance affects the appearance and It is easy to accumulate dust, and the traditional tower fan does not have a moving head limit structure, which causes a large moving head error and affects the user experience.

Summary of the Invention

In order to solve the problems existing in the background art, the present invention provides a moving head assembly and a tower fan. The moving head assembly is provided with a limiting structure so that the air duct component rotates strictly according to a predetermined track and angle, thereby reducing the number of parts between the parts when the air duct component rotates. Collision prolongs the service life, and the shaking error is small, which improves the user experience.

To achieve the above object, on the one hand, the present invention adopts the following technical solutions:

A moving head assembly is used for rotating an air duct component of a tower fan relative to a casing of the tower fan. The moving head assembly includes a driving device and a limiting structure, and the driving device is used for driving the air duct component to rotate relative to the casing. The limiting structure is configured to limit a rotation range of the air duct component.

Preferably, the limiting structure is configured to restrict the air duct component from rotating between a first extreme position and a second extreme position, the limiting structure includes a matching portion capable of rotating with the air duct component, and A stopper portion fixedly disposed with respect to the housing is used to turn the air duct component from the first extreme position to the second extreme position and from the second extreme position to the When the first limit position is described, the mating portion is stopped to prevent the air duct component from continuing to rotate.

Preferably, the fitting portion includes a limit protrusion, and the stop portion includes a limit groove that cooperates with the limit protrusion; or,

The engaging portion includes a limiting groove, and the stopping portion includes a limiting protrusion that cooperates with the limiting groove,

The position-limiting protrusion moves in the position-limiting groove to limit the rotation range of the air duct component.

Preferably, the limiting groove is an arc-shaped groove.

Preferably, the moving head assembly further includes a mounting base, and the driving device is mounted on the mounting base,

The limiting structure is disposed between the mounting seat and the air duct component; or

The moving head assembly further includes a transmission mechanism, the driving device drives the air duct component to rotate through the transmission mechanism, and the limiting structure is disposed between the transmission mechanism and the mounting seat.

Preferably, the transmission mechanism includes a gear transmission mechanism, the gear transmission mechanism includes a driving gear and a driven gear that are engaged, the driving device is connected with the driving gear, and the driven gear is connected with the air duct component For connection, the limit protrusion is provided on the driven gear, and the limit groove is provided on the mounting seat.

Preferably, the driving device includes a transmission shaft or a transmission hole, a cross section of the transmission shaft or the transmission hole is a non-circular cross section, and a center position of the driving gear is provided with the transmission shaft or the transmission hole. The matching transmission hole or transmission shaft realizes that the driving device drives the driving gear to rotate through the cooperation of the transmission shaft and the transmission hole.

Preferably, the air duct component and the driven gear are fixedly connected through a first buckle structure and / or a first fastener; and / or,

A first positioning structure is provided between the air duct component and the driven gear for positioning between the driven gear and the air duct component.

Preferably, a screw post or a screw hole is provided at an end of the air duct component near the driven gear, and a screw hole or a screw matching the screw post or the screw hole is provided on the driven gear. A column through which a screw passes through the screw column and the screw hole to achieve a fixed connection between the air duct component and the driven gear; and / or,

The first positioning structure includes a first positioning protrusion or a first positioning hole / groove provided at an end of the air duct component close to the driven gear, and the first positioning structure further includes a provided on the driven A first positioning hole / slot or a first positioning protrusion of the gear that cooperates with the first positioning protrusion or the first positioning hole / slot, the first positioning protrusion and the first positioning hole / The grooves cooperate to realize the installation and positioning of the driven gear and the air duct component.

Preferably, a second positioning structure is provided between the driving device and the mounting base for positioning between the driving device and the mounting base.

Preferably, the driving device includes a second ear plate, the second positioning structure includes a second positioning protrusion or a second positioning hole / groove provided on the second ear plate, and the second positioning structure further A second positioning hole / slot or a second positioning protrusion provided on the mounting seat and cooperating with the second positioning protrusion or the second positioning hole / groove; The cooperation of the second positioning hole / slot realizes the mounting and positioning of the driving device and the mounting seat.

Preferably, the shaking head assembly includes a pressing member, and the pressing member is fixedly connected to the mounting base to press-fix the driving gear and the driving device to the mounting base.

Preferably, the pressing member includes a cover, and the cover is provided on the driving gear.

Preferably, the cover body is provided with a first ear plate, the first ear plate is provided with a mounting hole, and the mounting seat is provided with a fitting hole that cooperates with the mounting hole, and is fastened by a second A piece passes through the mounting hole and the fitting hole to achieve a fixed connection between the cover and the mounting seat.

Preferably, the first ear plate is provided with an avoidance groove for avoiding the second positioning protrusion.

On the other hand, the present invention adopts the following technical solutions:

A tower fan includes a shell, an air duct component, and a moving head component as described above.

Preferably, the housing is provided with a first air outlet, and the air duct component is provided with a second air outlet. When the air duct component is located at a second extreme position, the first air outlet and the first air outlet The two air outlets are completely staggered.

The invention proposes a moving head assembly and a tower fan. The moving head assembly is provided with a limiting structure so that the air duct component rotates strictly according to a predetermined track and angle, reduces collision between various parts when the air duct component rotates, prolongs the service life, and shakes the head. Small, improve user experience.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features, and advantages of the present invention will be more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

FIG. 1 is an exploded schematic view of a moving head component provided by the present invention; FIG.

2 is a schematic structural diagram of a moving head assembly provided by the present invention;

3 is a schematic structural diagram of a mounting base provided by the present invention;

4 is a schematic structural diagram of a driving gear provided by the present invention;

5 is a schematic structural diagram of a driven gear provided by the present invention;

6 is a schematic structural diagram of a driving device provided by the present invention;

7 is a schematic structural diagram of a pressing member provided by the present invention;

8 is a schematic partial structural diagram of an air duct component provided by the present invention;

9 is a schematic structural diagram of a tower fan provided by the present invention;

FIG. 10 is a schematic structural view of another aspect of the pressing member provided by the present invention; FIG.

FIG. 11 is a schematic structural diagram of another aspect of the driving gear provided by the present invention.

In the figure,

1. Shaking head assembly; 11. Mounting base; 111; Limiting groove; 112; Second positioning protrusion; 113; Fitting hole; 114; Columnar structure; 115; Motor groove; 12. Driving device; 121; Stepper motor; 1211, transmission shaft; 122, second ear plate; 1221, second positioning hole / groove; 13, driving gear; 131, transmission hole; 132, matching hole / groove; 14, driven gear; 141, limit protrusion 142, first positioning hole / groove; 143, screw hole; 144, tubular structure; 15, limit structure; 151, mating portion; 152, stop portion; 16, pressing member; 161, cover body; 1611 1, the first ear plate; 1612, the third positioning protrusion; 1613, the third positioning hole; 2, the air duct component; 21, the first positioning protrusion; 22, the screw post; 23, the second air outlet; 3, the shell 31. The first air outlet.

detailed description

The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the present invention, some specific details are described in detail. In order to avoid obscuring the essence of the present invention, well-known methods, procedures, processes, and elements have not been described in detail.

In addition, those of ordinary skill in the art should understand that the drawings provided herein are for the purpose of illustration, and the drawings are not necessarily drawn to scale.

Unless the context clearly requires otherwise, the words "including", "comprising" and the like throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, "including but not limited to" Meaning.

In the description of the present invention, it should be understood that the terms “first”, “second”, and the like are used for descriptive purposes only, and cannot be understood to indicate or imply relative importance. In addition, in the description of the present invention, unless otherwise stated, "a plurality" means two or more.

As shown in FIGS. 1, 2 and 9, the present application proposes a moving head assembly 1 for rotating an air duct assembly 2 of a tower fan relative to a housing 3 of the tower fan. The moving head assembly 1 includes a driving device 12 and a limiting structure. 15. The driving device 12 includes a motor, such as a stepping motor 121 or a servo motor. The driving device 12 is configured to drive the air duct component 2 to rotate relative to the housing 3. The limiting structure 15 is configured to limit The rotation range of the air duct assembly 2 is described. The moving head assembly 1 is provided with a limiting structure 15 so that the air duct assembly 2 rotates strictly according to a predetermined track and angle, thereby reducing the collision between various parts when the air duct assembly 2 rotates, and extending the service life. The moving head error is small, which improves the user experience. In addition, by rotating the moving head component 1 to drive the air duct component 2 relative to the housing 3 of the tower fan, the air outlet can be closed, the appearance is simpler, and dust can be effectively prevented from sticking to the air outlet. Reduce the accumulation of dust, reduce the difficulty of subsequent cleaning, and improve user experience.

As shown in FIGS. 1, 2, 3 and 5, specifically, the limiting structure 15 is configured to restrict the air duct component 2 from rotating between a first extreme position and a second extreme position. The limiting structure 15 It includes a matching portion 151 capable of rotating with the air duct component 2 and a stopper portion 152 fixedly disposed with respect to the casing 3, and the stopper portion 152 is used when the air duct component 2 moves from the first limit position. Stopping the mating portion 151 when turning to the second extreme position and from the second extreme position to the first extreme position to prevent the air duct assembly 2 from continuing to rotate, the mating portion 151 includes The limiting protrusion 141 and the stopping portion 152 include a limiting groove 111 that cooperates with the limiting protrusion 141. The limiting protrusion 141 moves in the limiting groove 111 to restrict the rotation of the air duct component 2. The range may alternatively or also be that the mating portion 151 includes a limit groove, and the stop portion 152 includes a limit protrusion that cooperates with the limit groove, which can also achieve the effect of limiting the rotation range of the air duct component 2 . The limiting groove 111 is preferably an arc-shaped groove, so that the limiting protrusion 141 is more convenient for movement in the limiting groove 111, reducing the collision or friction of the limiting protrusion 141 on the groove wall of the limiting groove 111, and extending the service life. .

As shown in FIGS. 1 and 2, the moving head assembly 1 further includes a mounting base 11, the driving device 12 is mounted on the mounting base 11, and the limiting structure 15 is provided on the mounting base 11 and the air duct component It is more preferable that the moving head assembly 1 further includes a transmission mechanism. The driving device 12 drives the air duct assembly 2 to rotate through the transmission mechanism. The limiting structure 15 is provided between the transmission mechanism and the transmission mechanism. Between the mounting bases 11, specifically, the transmission mechanism includes a gear transmission mechanism, and the gear transmission mechanism includes a driving gear 13 and a driven gear 14 that mesh with each other, and the driving device 12 is connected to the driving gear 13, The moving gear 14 is connected to the air duct assembly 2, the limiting protrusion 141 is provided on the driven gear 14, the arc-shaped groove is provided on the mounting seat 11, and the limiting protrusion 141 is configured It is a circular column. At the first limit position and the second limit position, the end face of the arc-shaped groove is an arc surface, and the radius of the circular column and the arc surface is approximately the same. The movement in the limit slot 111 can be effectively reduced to the first limit position The collision between the limit protrusion 141 and the groove wall of the limit groove 111 at the second limit position further extends the service life.

As shown in FIGS. 1, 4 and 6, preferably, the driving device 12 includes a transmission shaft 1211. The cross section of the transmission shaft 1211 is a non-circular cross section. A center position of the driving gear 13 is provided with the transmission shaft 1211. Matching transmission hole 131, the transmission shaft 1211 is inserted into the transmission hole 131, and the driving device 12 drives the driving gear 13 through the cooperation of the transmission shaft 1211 and the transmission hole 131 during operation, and sets the cross section of the transmission shaft 1211 to a non- The circular cross section makes the connection between the transmission shaft 1211 and the transmission hole 131 more reliable, and it is more convenient for the driving device 12 to drive the driving gear 13. The non-circular cross section can be a waist section, a square section or a polygonal section. It should be noted that A transmission hole may be provided in the driving device 12 and a driving shaft may be provided in the driving gear 13, and the effect of driving the driving gear 13 by the driving device 12 may also be achieved.

As shown in FIGS. 1, 5, and 8, the air duct component 2 and the driven gear 14 are fixedly connected through a first buckle structure and / or a first fastener, and the air duct component 2 and the driven gear 14 are fixedly connected. A first positioning structure is provided between the driven gears 14 for positioning between the driven gear 14 and the air duct component 2 to facilitate the connection between the driven gear 14 and the air duct component 2. Specifically, the first A positioning structure includes a first positioning protrusion 21 provided on an end of the air duct assembly 2 near the driven gear 14. The first positioning structure further includes a first positioning protrusion 21 provided on the driven gear 14. A first positioning hole / groove 142 that is matched with a positioning protrusion 21, and the first positioning protrusion 21 is inserted into the first positioning hole / groove 142 to realize the installation and positioning of the driven gear 14 and the air duct component 2, which is more convenient for the driven gear The connection between 14 and the air duct component 2 improves assembly efficiency. It should be noted that a first positioning hole / slot may be provided on the air duct component 2 and a first positioning protrusion may be provided on the driven gear 14. In addition, a screw post 22 is provided at one end of the air duct component 2 near the driven gear 14, and a screw hole 143 is provided on the driven gear 14 to cooperate with the screw post 22, and passes through the first positioning structure. After positioning the connection between the driven gear 14 and the air duct component 2, the air duct component 2 and the driven gear 14 are realized through a screw (not shown) through the screw post 22 and the screw hole 143. Fixed connection to ensure the reliability and accuracy of the connection between the driven gear 14 and the air duct component 2, alternatively, a screw post is provided on the driven gear 14 and the screw hole is disposed on the air duct component 2, the same The fixed connection between the driven gear 14 and the air duct component 2 can be ensured.

Preferably, as shown in FIGS. 1, 3 and 6, a second positioning structure is provided between the driving device 12 and the mounting base 11 for positioning and driving between the driving device 12 and the mounting base 11. The device 12 includes a second ear plate 122, the second positioning structure includes a second positioning hole / slot 1221 provided on the second ear plate 122, and the second positioning structure further includes a mounting base 11 The driving device 12 is realized by the second positioning protrusion 112 which is above and cooperates with the second positioning hole / groove 1221. The driving device 12 is realized through the cooperation of the second positioning protrusion 112 and the second positioning hole / groove 1221. Installation and positioning with the mounting base 11 to ensure the correct connection of the driving device 12 and the mounting base 11 and improve the assembly efficiency of the driving device 12 and the mounting base 11.

In order to further ensure the stable installation of the driving gear 13 and the driving device 12, as shown in FIGS. 1, 2, 3, and 7, the moving head assembly 1 further includes a pressing member 16, and the pressing member 16 is fixedly connected to the mounting base 11. The driving gear 13 and the driving device 12 are pressed and fixed on the mounting base 11. Specifically, the pressing member 16 includes a cover 161, and the cover 161 is covered on the driving gear 13. A first ear plate 1611 is provided on the cover body 161, a mounting hole is provided on the first ear plate 1611, and a fitting hole 113 is provided on the mounting base 11 to cooperate with the mounting hole. A firmware (not shown in the figure) passes through the mounting hole and the fitting hole 113 to achieve a fixed connection between the cover 161 and the mounting base 11, and the second fastener may be a bolt assembly, a rivet, or a The tapping screw is preferably provided with a mounting post (not shown in the figure) matching the mounting hole on the mounting base 11, and the matching hole 113 is provided on the mounting post to further improve the reliability of the connection between the cover 161 and the mounting base 11 Alternatively, a mounting plate matching the first ear plate 1611 may be provided on the mounting base 11 (in the figure) (Shown), the fitting hole 113 is provided on the mounting plate, which can further improve the reliability of the connection between the cover 161 and the mounting base 11, and the fixed connection between the cover 161 and the mounting base 11 can further ensure that it is covered by the cover 161. The reliability of the connection between the internal driving gear 13 and the mounting base 11 further ensures the reliability of the connection between the driving device 12 connected to the driving gear 13 and the mounting base 11. More preferably, the first ear plate 1611 on the cover body 161 is provided with an avoidance groove for avoiding the second positioning protrusion 112 to facilitate the fast connection between the cover body 161 and the mounting base 11, and the second positioning protrusion The cooperation of the riser 112 and the avoidance groove can improve the reliability of the connection between the cover 161 and the mounting seat 11 to a certain extent.

A third positioning protrusion 1612 is provided at a middle position on the cover body 161, and is located on the side of the cover body 161 near the driving gear 13, and in the center position of the side of the driving gear 13 near the third positioning protrusion 1612. A matching hole / slot 132 is provided to cooperate with the third positioning protrusion 1612, and the preliminary connection and positioning of the cover 161 and the driving gear 13 is realized by inserting the third positioning protrusion 1612 into the matching hole / slot 132, which is more convenient for active The gear 13 and the cover 161 are fixedly connected to the mounting base 11. It is more preferable to provide a third positioning hole 1613 at the center of the cover 161 on the side opposite to the side where the third positioning protrusion 1612 is provided, which is more convenient to observe the cover. Whether 1161 is aligned with the driving gear 13 is more convenient for the preliminary positioning and connection of the cover 161 and the driving gear 13. It should be noted that “/” in this application means “or”, for example, the matching hole / groove 132 means a matching hole or a groove.

The present application also proposes to protect a tower fan, as shown in FIGS. 1, 2, and 9, including a casing 3, an air duct component 2, and the foregoing moving head component 1. The casing 3 is provided with a first air outlet 31. Module 2 is provided with a second air outlet 23, and when the air duct component 2 is located at the second extreme position, the first air outlet 31 and the second air outlet 23 are completely staggered, so that the air outlet of the tower fan is at The closed state prevents dust from sticking to the air outlet of the tower fan, which facilitates the subsequent cleaning and maintenance of the tower fan and improves the user experience.

In a specific embodiment, as shown in FIG. 1-9, the tower fan includes an air duct component 2, a moving head component 1, and a housing 3, and the moving head component 1 includes a driving device 12, a gear transmission mechanism and a mounting base 11, and a gear transmission mechanism. Including the driving gear 13 and the driven gear 14 which are engaged, compared with the traditional crank and rocker mechanism, the gear transmission mechanism has fewer assembly parts, which can greatly improve the assembly efficiency, and the gear transmission mechanism makes the air duct assembly 2 rotate more Continuous and smooth. A cylindrical structure 144 is provided at the center of the driven gear 14, and a cylindrical structure 114 matching the cylindrical structure 144 is provided on the mounting base 11. The cylindrical structure 144 is sleeved on the cylindrical structure 114 so that the driven gear 14 is rotatable with respect to the axis of the columnar structure 114. Preferably, the cross-section of the columnar structure 114 is circular, which is more convenient for the rotation of the driven gear 14, and the cooperation of the cylindrical structure 144 and the columnar structure 114 is more convenient. The positioning and installation of the driving gear 14 can also improve the reliability of the connection between the driven gear 14 and the mounting seat 11 and the air duct component 2 to a certain extent. The driving device 12 includes a motor, such as a stepper motor 121 or a servo motor. The mounting base 11 is provided with a motor slot 115 for mounting the stepper motor 121 to ensure stable operation of the motor.

As shown in Figure 1-9, when the tower fan is turned on and shakes its head, the stepper motor 121 starts to move, driving the driving gear 13 to run, and the driven gear 14 is driven by the gear connection, which in turn drives the operation of the air duct assembly 2 and driven. The limiting protrusion 141 on the gear 14 slides along the limiting groove 111 on the mounting base 11. When the limiting protrusion 141 touches one end of the limiting groove 111, that is, when the limiting structure 15 reaches the first limit position As a result, the drive shaft 1211 of the stepper motor 121 is blocked. By pre-setting the program, the stepper motor 121 is reversed, so that the air duct component 2 is oriented toward the other with the rated steps (normal shaking angle) given by the stepper motor 121. When the tower fan is turned off, the limit protrusion 141 on the driven gear 14 will slide along the limit groove 111 on the mounting base 11 to the other end, ie When the limiting structure 15 reaches the second limit position, the transmission shaft 1211 of the stepping motor 121 is blocked, and the air duct component 2 is stopped by a preset program, so that the air outlet of the entire air duct component 2 is closed.

As shown in Figure 1-9, the tower fan closes and opens the air outlet of the tower fan through the cooperation of the stepper motor 121 and the gear transmission mechanism, which is smoother than the traditional moving head assembly 1 and improves the life of the moving head assembly 1 and By setting a limit structure 15 on the structure, it can cooperate with the whole machine operation program to control the angle of the shaking head of the air duct component 2 to better meet the needs of users and ensure the normal operation of the tower fan. After the shutdown, the angle of the shaking head can be changed to make the first The air outlet 31 and the second air outlet 23 are completely misaligned, thereby achieving the purpose of hiding the air outlet. The overall appearance of the device is simple and it is difficult to accumulate dust, which improves the user experience.

Those skilled in the art can easily understand that, under the premise of no conflict, the above-mentioned preferred schemes can be freely combined and superimposed.

It should be understood that the above-mentioned implementations are merely exemplary and not restrictive, and various obvious or equivalent ones that can be made by those skilled in the art with respect to the above details without departing from the basic principles of the present invention Modifications or replacements are all included in the scope of the claims of the present invention.

Claims

A moving head assembly is used for rotating an air duct component of a tower fan relative to a housing of the tower fan, characterized in that the moving head assembly includes a driving device and a limiting structure, and the driving device is used to drive the air duct component to The casing rotates, and the limiting structure is configured to limit a rotation range of the air duct component.
The moving head assembly according to claim 1, wherein the limiting structure is configured to restrict the air duct component from rotating between a first extreme position and a second extreme position, and the limiting structure includes a A matching portion that rotates with the air duct component and a stopper portion fixedly disposed with respect to the casing, the stopper portion is used to turn the air duct component from the first extreme position to the second extreme position And stopping the mating portion when turning from the second extreme position to the first extreme position to prevent the air duct component from continuing to rotate.
The shaking head assembly according to claim 2, wherein the engaging portion includes a limiting protrusion, and the stopping portion includes a limiting groove that cooperates with the limiting protrusion; or,

The engaging portion includes a limiting groove, and the stopping portion includes a limiting protrusion that cooperates with the limiting groove,

The position-limiting protrusion moves in the position-limiting groove to limit the rotation range of the air duct component.
The moving head assembly according to claim 3, wherein the position-limiting groove is an arc-shaped groove.
The shaking head assembly according to claim 3 or 4, wherein the shaking head assembly further comprises a mounting base, and the driving device is mounted on the mounting base,

The limiting structure is disposed between the mounting seat and the air duct component; or

The moving head assembly further includes a transmission mechanism, the driving device drives the air duct component to rotate through the transmission mechanism, and the limiting structure is disposed between the transmission mechanism and the mounting seat.
The moving head assembly according to claim 5, wherein the transmission mechanism includes a gear transmission mechanism, the gear transmission mechanism includes an engaged driving gear and a driven gear, and the driving device is connected with the driving gear, The driven gear is connected to the air duct component, the limiting protrusion is provided on the driven gear, and the limiting groove is provided on the mounting seat.
The moving head assembly according to claim 6, wherein the driving device comprises a transmission shaft or a transmission hole, a section of the transmission shaft or the transmission hole is a non-circular section, and a center position of the driving gear is provided. There is a transmission hole or transmission shaft matching the transmission shaft or the transmission hole, and the driving device drives the driving gear to rotate through the cooperation of the transmission shaft and the transmission hole.
The moving head assembly according to claim 6, wherein the air duct component and the driven gear are fixedly connected through a first snap structure and / or a first fastener; and / or,

A first positioning structure is provided between the air duct component and the driven gear for positioning between the driven gear and the air duct component.
The moving head assembly according to claim 8, wherein a screw post or a screw hole is provided at an end of the air duct assembly near the driven gear, and the driven gear is provided with the screw post or A screw hole or a screw post that is matched with the screw hole, and a fixed connection between the air duct component and the driven gear is achieved through a screw passing through the screw post and the screw hole; and / or,

The first positioning structure includes a first positioning protrusion or a first positioning hole / groove provided at an end of the air duct component close to the driven gear, and the first positioning structure further includes a provided on the driven A first positioning hole / slot or a first positioning protrusion of the gear that cooperates with the first positioning protrusion or the first positioning hole / slot, the first positioning protrusion and the first positioning hole / The grooves cooperate to realize the installation and positioning of the driven gear and the air duct component.
The moving head assembly according to any one of claims 6 to 9, wherein a second positioning structure is provided between the driving device and the mounting base, and is used for the positioning between the driving device and the mounting base. Positioning.
The moving head assembly according to claim 10, wherein the driving device comprises a second ear plate, and the second positioning structure comprises a second positioning protrusion or a second positioning plate provided on the second ear plate Hole / slot, the second positioning structure further includes a second positioning hole / slot or a second positioning hole disposed on the mounting base and cooperating with the second positioning protrusion or the second positioning hole / slot Positioning protrusions, through the cooperation of the positioning protrusions and the second positioning holes / slots, realize the installation and positioning of the driving device and the mounting base.
The shaking head assembly according to claim 11, wherein the shaking head assembly includes a pressing member, and the pressing member is fixedly connected to the mounting seat to press and fix the driving gear and the driving device. On the mount.
The shaking head assembly according to claim 12, wherein the pressing member comprises a cover body, and the cover body is disposed on the driving gear.
The shaking head assembly according to claim 13, wherein the cover is provided with a first ear plate, the first ear plate is provided with a mounting hole, and the mounting seat is provided with the mounting hole. The mating matching holes pass through the mounting hole and the fitting hole to achieve a fixed connection between the cover body and the mounting seat through a second fastener.
The shaking head assembly according to claim 14, wherein the first ear plate is provided with an avoidance groove for avoiding the second positioning protrusion.
A tower fan, comprising a housing, an air duct component, and a moving head component according to any one of claims 1-15.
The tower fan according to claim 16, wherein the moving head component is a moving head component according to any one of claims 2 to 15, and a first air outlet is provided on the casing, and the air duct component is provided on the housing. A second air outlet is provided. When the air duct component is located at a second extreme position, the first air outlet and the second air outlet are completely staggered.