CN210218246U

CN210218246U - Dustproof air-out grid and electric fan

Info

Publication number: CN210218246U
Application number: CN201921102200.2U
Authority: CN
Inventors: Yuliang Xu; 徐余良; Zhe Liu; 刘哲; Lin Zhang; 张�林
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-03-31
Anticipated expiration: 2029-07-15

Abstract

The utility model discloses a dustproof air-out grid, center fixedly connected with annular frame that fixedly connected with cross, cross propped are located to the shell top wind gap of electric fan, it is used for dirt-proof air-out grid to rotate to be connected with between the top wind gap lateral wall of the shell of annular frame and electric fan, it has the rolling disc to rotate on the annular frame, can rotate along with the rolling disc and open and close the air-out grid. The electric fan comprises a base connected with the bottom of a shell of the electric fan, a motor arranged at the bottom in the base, and an axial flow fan blade sleeved and arranged on an output shaft of the motor, wherein the output shaft of the motor is connected with the dustproof air outlet grille in a driving way to be opened or closed; the utility model discloses a with the design of fan air-out grid for the activity, control the air-out grid through manual or electrically driven dual mode, all can open or close the air-out grid, effectually prevent that dust, mosquito from getting into in the organism.

Description

Dustproof air-out grid and electric fan

Technical Field

The utility model belongs to the technical field of the electric fan, especially, relate to a dustproof air-out grid and electric fan.

Background

At present, the air outlet grille structure of the existing fan in the market is relatively fixed and poor in flexibility, and especially a table fan and a floor fan blowing upwards are placed for a period of time, dust, even flies, mosquitoes and the like can fall in the fan. When the machine is started again, the air is blown out and the dust is blown out, so that the health is influenced by musty smell. Along with the continuous improvement of the material life of people at present, people also have higher demands on the environmental quality of living rooms and bedrooms, and hope to have a fan which is beautiful in appearance, and is fresh and clean in air blowing and free of pollution. Therefore, there is a need in the art to provide a fan product that is easy to store and dust-proof.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dustproof air-out grid and electric fan to solve the problem of background art.

In order to achieve the above object, the utility model discloses a specific technical scheme as follows of dustproof air-out grid and electric fan:

a dustproof air outlet grating comprises a cross support fixedly connected to an air opening above a shell of an electric fan, an annular frame fixedly connected to the center of the cross support, an air outlet grating used for dust prevention is rotatably connected between the annular frame and the side wall of the air opening above the shell of the electric fan, and a rotating disc is rotated on the annular frame and can open and close the air outlet grating along with rotation of the rotating disc.

Further, one end of the air outlet grille close to the annular frame is connected with a bevel gear; the lower end face of the rotating disc is provided with circular ring teeth, and the circular ring teeth are driven to be meshed with bevel gears for driving through manual rotation of the rotating disc, so that the air outlet grille can be opened or closed in a rotating mode and is dustproof.

Furthermore, the lower terminal surface center fixedly connected with transmission shaft of rolling disc, and the other end of transmission shaft connects in step motor, step motor is fixed in on the shell inner wall through the support, through step motor electric drive the air-out grid rotates to open or closed dustproof.

Furthermore, one end of the air outlet grid is connected with a bevel gear, the other end of the air outlet grid is connected with a mandrel, and the air outlet grid is rotatably connected to the inner side wall of the upper air opening of the electric fan shell through the mandrel.

Furthermore, the air outlet grille is of a plurality of fan-shaped structures and is surrounded into a circle by the rotating disc.

Furthermore, the rotating disc is clamped in a circular groove in the annular frame through a circular arc bulge arranged at the bottom of the rotating disc.

An electric fan comprises a base connected with the bottom of a shell of the electric fan, a motor arranged at the bottom in the base, and axial flow fan blades sleeved on an output shaft of the motor, wherein an air outlet grid is arranged at an air outlet of the electric fan, and the air outlet grid is the dustproof air outlet grid.

Furthermore, a fan blade positioning sleeve is further sleeved on the motor output shaft, a fan blade positioning insert is further arranged on the fan blade positioning sleeve, and the fan blade positioning insert and the motor output shaft are in threaded connection to limit the axial flow fan blade.

Furthermore, the motor cover for protecting the motor is arranged on the motor upper cover, and a plurality of heat dissipation holes in any direction are formed in the motor cover.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a design fan air-out grid for the activity, control the air-out grid through manual or electrically driven dual mode, all can open or close the air-out grid, increase drive mechanism in the middle of the air-out grid subassembly or peripheral, the air-out grid is opened when the fan operates, closes the air-out grid when the fan stops operating, effectually prevents that dust, mosquito from getting into the organism in.

Drawings

FIG. 1 is a schematic view of a manually controlled grille of the present invention;

FIG. 2 is an enlarged view of the structure A in FIG. 1;

FIG. 3 is a schematic view of an electrically driven grille of the present invention;

FIG. 4 is an enlarged view of the structure B in FIG. 3;

fig. 5 is an assembly appearance diagram of the present invention.

The reference numbers in the figures illustrate: the air-out grid 1, bevel gear 2, rolling disc 3, shell 4, cross brace 5, motor 6, electric drive shaft 7, motor cover 8, axial fan blade 9, fan blade positioning sleeve 10, fan blade positioning insert 11, base 12, support 13, transmission shaft 14, step motor 15.

Detailed Description

For a better understanding of the objects, structure and function of the invention, reference should be made to the drawings, FIGS. 1-5, which are included to illustrate the invention.

A plurality of air-out grid 1 structures of air outlet department of current electric fan are fixed, especially the desk fan of blowing up, floor fan, place the inside dust that can fall of period fan, and the flexibility is not enough. Therefore, a dustproof air outlet grid is designed, and comprises a cross support 5 fixedly connected to an air opening above a shell 4 of an electric fan, and an annular frame fixedly connected to the center of the cross support 5, wherein the cross support 5 and the annular frame are equivalent to positioning frames, the air outlet grid 1 is installed through the positioning frames, the dustproof air outlet grid 1 is rotatably connected between the annular frame and the side wall of the air opening above the shell 4 of the electric fan, a rotating disc 3 is rotated on the annular frame, and the air outlet grid 1 can be opened or closed along with the manual rotation of the rotating disc 3 and the rotation of the rotating disc 3; the innovation point of this design lies in the design in this wind gap department, realizes that manual or electronic opening or closing air-out grid 1, and the air-out grid is closed when realizing the fan stall, and effectual dust, the mosquito of preventing get into the organism in.

In a manual mode, as shown in fig. 1 and 2, one end of an air outlet grille 1 close to an annular frame is connected with a bevel gear 2, the other end of the air outlet grille 1 is connected with a mandrel, and the air outlet grille 1 is rotatably connected to the inner side wall of an air opening above an electric fan shell 4 through the mandrel; the lower end face of the rotating disc 3 is provided with circular ring teeth, and the circular ring teeth are driven to be meshed with the bevel gear 2 to drive through manually rotating the rotating disc 3, so that the air outlet grille 1 can be opened or closed to prevent dust through rotation.

Another electric driving mode, as shown in fig. 3 and 4, is specifically designed such that a transmission shaft 14 is fixedly connected to the center of the lower end surface of the rotating disc 3, the other end of the transmission shaft 14 is connected to a stepping motor 15, the stepping motor 15 is fixed to the inner wall of the housing 4 through a bracket 13, and the air outlet grille 1 is electrically driven by the stepping motor 15 to rotate to open or close for dust prevention. The stepping motor 15 can operate by setting the number of steps in the program, when the set number of steps is read, the stepping motor 15 stops working, when the set number of steps is read, the rotating speed direction of the stepping motor 15 is set to rotate reversely, the same number of steps is set again, when the reading of the number of steps is finished, the stepping motor 15 stops, and when the stepping motor 15 works, the rotating disc 3 is controlled to rotate forward and backward to open and close the air outlet grille 1. Wherein, air-out grid 1 is a plurality of fan-shaped structures, and air-out grid 1 encloses into a circle with rolling disc 3 around. The rotating disc 3 is clamped in a circular groove in the annular frame through a circular arc bulge arranged at the bottom.

The designed dustproof air outlet grid is used in an electric fan in the prior art, the air outlet grid design of an air outlet of the electric fan in the prior art is only changed, and the internal structure of the electric fan comprises a base 12 connected with the bottom of a shell 4 of the electric fan, a motor 6 arranged at the bottom in the base 12 and axial flow fan blades 9 sleeved on an output shaft of the motor 6; the output shaft of the motor 6 is further sleeved with a fan blade positioning sleeve 10, a fan blade positioning insert 11 is further arranged on the fan blade positioning sleeve 10, and the fan blade positioning insert 11 and the output shaft of the motor 6 are in threaded connection to limit the axial flow fan blade 9. The motor cover 8 for protecting the motor 6 is arranged on the upper cover of the motor 6, a plurality of radiating holes in any direction are formed in the motor cover 8, and when the motor 6 works to drive the axial flow fan blade 9 to rotate, heat inside the motor 6 is radiated from the radiating holes.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. The utility model provides a dustproof air-out grid, includes that shell (4) top wind gap department fixedly connected with cross of electric fan props (5), the center fixedly connected with ring frame of cross prop (5), its characterized in that: an air outlet grille (1) for dust prevention is rotatably connected between the annular frame and the side wall of an air opening above a shell (4) of the electric fan, and a rotating disc (3) is rotated on the annular frame and can open or close the air outlet grille (1) along with the rotation of the rotating disc (3).

2. The dustproof air outlet grille according to claim 1, characterized in that one end of the air outlet grille (1) close to the annular frame is connected with a bevel gear (2); the lower end face of the rotating disc (3) is provided with circular ring teeth, and the circular ring teeth are driven to be meshed with the bevel gears (2) to drive through rotating the rotating disc (3), so that the air outlet grille (1) can be opened or closed to prevent dust through rotating.

3. The dustproof air-out grille of claim 2, characterized in that a transmission shaft (14) is fixedly connected to the center of the lower end face of the rotating disc (3), the other end of the transmission shaft (14) is connected to a stepping motor (15), the stepping motor (15) is fixed on the inner wall of the housing (4) through a bracket (13), and the air-out grille (1) is electrically driven by the stepping motor (15) to rotate to open or close for dust prevention.

4. The dustproof air outlet grille according to claim 1, characterized in that one end of the air outlet grille (1) is connected with a bevel gear (2), the other end of the air outlet grille (1) is connected with a mandrel, and the air outlet grille (1) is rotatably connected with the inner side wall of the upper air opening of the electric fan shell (4) through the mandrel.

5. The dustproof air outlet grille according to claim 1, wherein the air outlet grille (1) is a plurality of fan-shaped structures, and the air outlet grille (1) is surrounded into a circle by the rotating disc (3).

6. The dustproof air outlet grille according to claim 1, characterized in that the rotating disc (3) is clamped in a circular groove in the annular frame through a circular arc bulge arranged at the bottom.

7. An electric fan comprises a base (12) connected with the bottom of a shell (4) of the electric fan, a motor (6) arranged at the bottom in the base (12), and an axial flow fan blade (9) sleeved on an output shaft of the motor (6), wherein an air outlet grille is arranged at an air outlet of the electric fan, and the electric fan is characterized in that the air outlet grille is the dustproof air outlet grille in any one of claims 1 to 6.

8. The electric fan according to claim 7, wherein the output shaft of the motor (6) is further sleeved with a blade positioning sleeve (10), the blade positioning sleeve (10) is further provided with a blade positioning insert (11), and the blade positioning insert (11) is in threaded connection with the output shaft of the motor (6) to limit the axial flow blade (9).

9. The electric fan according to claim 7, characterized in that the motor cover (8) for protecting the motor (6) is arranged on the upper cover of the motor (6), and a plurality of heat dissipation holes with any direction are arranged on the motor cover (8).