CN215370316U

CN215370316U - Electric fan

Info

Publication number: CN215370316U
Application number: CN202121110199.5U
Authority: CN
Inventors: 潘韵松
Original assignee: Zhongshan Shiyao Intelligent Technology Co ltd
Current assignee: Zhongshan Shiyao Intelligent Technology Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-12-31
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses an electric fan which comprises a base, a rotating table, a turnover table, a shell, a first driving device, a second driving device, a first driving gear, a first driven gear and an electric fan main body. When the electric fan is used, the first driving device can drive the rotating table to rotate horizontally relative to the base, the second driving device drives the whole shell to rotate when working, the shell is fixed with the overturning table, and then the shell drives the whole overturning table to rotate relative to the rotating table, and the overturning table is fixed with the electric fan main body, so that the electric fan main body can be driven to swing in all directions in a three-dimensional space through the first driving device and the second driving device, and then the electric fan main body can supply air to a larger space.

Description

Electric fan

Technical Field

The utility model relates to the field of electric fans.

Background

The electric fan is a common electric appliance for family cooling at present, and when the electric fan is used, the electric fan can shake left and right generally, but cannot shake up and down automatically, namely the electric fan can shake head to blow in a three-dimensional space in a three-dimensional manner, so that the use feeling of a user is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, an object of the present invention is to provide an electric fan capable of three-dimensional swinging.

The technical scheme adopted by the utility model for solving the problems is as follows: an electric fan, comprising:

the device comprises a base, wherein a rotating table is arranged at the top of the base, and a first driving device which is connected with the top of the base and drives the rotating table to rotate horizontally relative to the base is arranged on the rotating table;

the overturning platform is pivoted on the rotating platform and can vertically rotate relative to the rotating platform, a shell fixedly connected with the overturning platform is arranged on one side of the overturning platform, a second driving device is fixedly installed on the shell, and a first driving gear located in the shell is arranged at the output end of the second driving device;

the first driven gear is arranged in the shell and meshed with the first driving gear, and a shaft rod which penetrates through the overturning platform and is relatively fixed with the rotating platform is arranged on one side of the first driven gear;

the electric fan main body is arranged on the overturning platform.

As a further improvement of the above technical solution, a first vertical plate is arranged on the rotating table, a second vertical plate is arranged on the overturning table, a first through hole is arranged on the first vertical plate, a second through hole is arranged on the second vertical plate, the housing is arranged on the inner side of the second vertical plate, the shaft lever is inserted into the first through hole and the second through hole, and the shaft lever is connected with the first vertical plate.

As a further improvement of the above technical solution, a limiting gear table connected with the shaft rod is arranged on the outer side of the first vertical plate, a plurality of limiting teeth are arranged on the periphery of the limiting gear table, a limiting device clamped on the limiting teeth is arranged on the rotating table, an elastic driving member is arranged on the limiting device, and the surface of the limiting device is in smooth transition with the surface of the limiting teeth.

As a further improvement of the technical scheme, the limiting teeth occupy less than one third of the periphery of the limiting gear table, and a stop lever is arranged outside the limiting teeth at the outermost edge.

As a further improvement of the above technical scheme, an annular connecting table surrounding the outside of the first through hole is fixedly installed on the outside of the first vertical plate, an annular boss is arranged on the surface of the annular connecting table, a mounting groove is formed in the bottom of the annular connecting table, a limiting device is an ejector rod arranged in the mounting groove, an elastic driving piece is arranged in the mounting groove and abutted against the bottom of the ejector rod, and an annular groove sleeved on the annular boss is formed in the limiting gear table.

As a further improvement of the technical scheme, the end part of the shaft rod is provided with a limiting pin, the limiting gear table is provided with a mounting hole, one side of the limiting gear table, which faces the shaft rod, is provided with a middle rotating shaft connected with the mounting hole through a bolt, and one end of the middle rotating shaft is provided with a limiting groove for the limiting pin to be clamped in.

As a further improvement of the technical scheme, an auxiliary torsion spring is arranged between the rotating table and the overturning table.

As a further improvement of the technical scheme, an annular inner cavity is formed in the first driven gear, the auxiliary torsion spring is arranged on the annular inner cavity, one end of the auxiliary torsion spring is fixed in the annular inner cavity, and the other end of the auxiliary torsion spring is fixed on the shell.

As a further improvement of the above technical solution, a connecting hole is provided on the rotating table, the top of the base is inserted into the connecting hole, a second driven gear is provided at the upper end of the base, and a second driving gear engaged with the second driven gear is provided at the output end of the first driving device.

As a further improvement of the technical scheme, the base comprises a base platform and a telescopic supporting rod arranged at the upper end of the base platform.

The utility model has the beneficial effects that: when in use, the first driving device can drive the rotating table to rotate horizontally relative to the base, while the second driving device works, because the first driven gear penetrates through the overturning platform through the shaft lever and is fixedly connected with the rotating platform, the first driven gear does not rotate, the second driving device drives the first driving gear to rotate, so that the first driven gear and the first driving gear can generate relative rotation, thereby the second driving device drives the first driving gear to rotate and is converted into the whole shell to rotate, and the shell is fixed with the overturning platform, thereby driving the whole overturning platform to rotate relative to the rotating platform through the shell, and the overturning platform is fixed with the fan main body, therefore, when the electric fan is used, the electric fan main body can be driven by the first driving device and the second driving device to swing in all directions in a three-dimensional space, and the electric fan main body can supply air to a larger space.

Drawings

The utility model is further explained below with reference to the drawing description and the detailed description.

FIG. 1 is a schematic structural view of a preferred embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken along the line A-A of FIG. 1;

FIG. 3 is a schematic view of a portion of the enlarged structure at B of FIG. 2;

FIG. 4 is a schematic view of a structure of a turntable in a preferred embodiment of the present invention;

FIG. 5 is a schematic view of an exploded structure of a turntable in a preferred embodiment of the present invention;

FIG. 6 is a schematic structural view of a flipping table in a preferred embodiment of the present invention;

FIG. 7 is a schematic illustration of the explosion configuration of the roll-over stand in the preferred embodiment of the present invention;

fig. 8 is a schematic structural view of a first driven gear in a preferred embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 8, an electric fan includes:

the device comprises a base 10, wherein a rotating table 30 is arranged at the top of the base 10, and a first driving device 90 which is connected with the top of the base 10 and drives the rotating table 30 to horizontally rotate relative to the base 10 is arranged on the rotating table 30;

the overturning platform 40 is pivoted on the rotating platform 30, the overturning platform 40 can vertically rotate relative to the rotating platform 30, a shell 50 fixedly connected with the overturning platform 40 is arranged on one side of the overturning platform 40, a second driving device 51 is fixedly installed on the shell 50, and a first driving gear 53 positioned in the shell 50 is arranged at the output end of the second driving device 51;

a first driven gear 52, wherein the first driven gear 52 is arranged in the housing 50 and meshed with a first driving gear 53, and one side of the first driven gear 52 is provided with a shaft lever 521 which penetrates through the overturning platform 40 and is fixed relative to the rotating platform 30;

the electric fan main body 20 is arranged on the overturning platform 40, and the electric fan main body 20 is arranged on the overturning platform 40.

When the electric fan is used, the first driving device 90 can drive the rotating table 30 to horizontally rotate relative to the base 10, when the second driving device 51 works, because the first driven gear 52 penetrates through the overturning table 40 through the shaft lever 521 to be fixedly connected with the rotating table 30, the first driven gear 52 does not rotate, and the second driving device 51 drives the first driving gear 53 to rotate, so that the first driven gear 52 and the first driving gear 53 can certainly rotate relatively, the second driving device 51 drives the first driving gear 53 to rotate and convert the rotation into the rotation of the whole shell 50, the shell 50 is fixed with the overturning table 40, the whole overturning table 40 is driven to rotate relative to the rotating table 30 through the shell 50, the overturning table 40 is fixed with the electric fan main body 20, so that the electric fan main body 20 can be driven to omni-directionally swing in a three-dimensional space through the first driving device 90 and the second driving device 51, thereby allowing the fan main body 20 to blow air in a larger space.

Further, preferably, a first vertical plate 31 is disposed on the rotating table 30, a second vertical plate 41 is disposed on the overturning table 40, a first through hole is disposed on the first vertical plate 31, a second through hole is disposed on the second vertical plate 41, the housing 50 is disposed inside the second vertical plate 41, the shaft rod 521 is inserted into the first through hole and the second through hole, and the shaft rod 521 is connected to the first vertical plate 31.

Further, preferably, since a user may sometimes swing the electric fan body 20 manually during use to adjust the orientation of the electric fan body 20 in the vertical direction, and if the electric fan body 20 is directly pulled off, the second driving device 51 is easily damaged, for this reason, the outer side of the first vertical plate 31 is provided with a limit gear table 60 connected with the shaft rod 521, the periphery of the limit gear table 60 is provided with a plurality of limit teeth 601, the rotating table 30 is provided with a limit device engaged with the limit teeth 601, the limit device is provided with an elastic driving member 71, and the surface of the limit device is in smooth transition with the surface of the limit teeth 601. The shaft lever 521 is indirectly and fixedly connected with the rotating table 30 through the limit gear table 60, the indirect fixation is a condition fixation, in a normal state, the elastic driving member 71 drives the limit device to be clamped on the limit teeth 601, so that the limit gear table 60 can not rotate, at this time, the second driving device 51 can normally drive the electric fan main body 20 to swing up and down, when the second driving device 51 does not work, and when a user forcibly turns the electric fan main body 20, the upward and downward swing of the electric fan main body 20 is transmitted to the turnover table 40 and then transmitted to the housing 50 through the turnover table 40, due to the meshing of the first driven gear 52 and the first driving gear 53, the swing is transmitted to the limit gear table 60 through the shaft lever 521, so that the limit teeth 601 overcome the elasticity of the elastic driving member 71, thereby pressing the limit device open, further rotating the limit gear table 60, and further, the force generated when the electric fan main body 20 is turned off can not completely act on the second driving device 51, the protection of the second driving device 51 is completed. In the above solution, the elastic driving member 71 is preferably an urging spring.

Further optimization is carried out, in consideration of the angle range of normal up-and-down swing, the limiting teeth 601 preferably occupy less than one third of the periphery of the limiting gear table 60, and a stop lever is arranged on the outer side of the limiting teeth 601 at the outermost edge, so that the maximum rotation amplitude of the limiting gear table 60 can be achieved through the cooperation of the stop lever and the limiting device.

Further optimize the installation of spacing gear table 60, preferably the platform 62 is connected to the outside fixed mounting one of first riser 31 around the annular in the first through-hole outside, the platform 62 surface is connected to the annular is provided with annular boss, the platform 62 bottom is connected to the annular is provided with mounting groove 621, stop device is for setting up ejector pin 70 in mounting groove 621, elastic drive spare 71 set up in mounting groove 621 and with ejector pin 70 bottom butt, be provided with the annular groove of cover on the annular boss of locating on the spacing gear table 60. The annular connecting table 62 may be integrally formed with the first riser 31.

Preferably, a limit pin 5211 is disposed at the end of the shaft lever 521, a mounting hole is disposed on the limit gear table 60, a middle rotating shaft 61 connected with the mounting hole through a bolt is disposed on one side of the limit gear table 60 facing the shaft lever 521, and a limit groove for the limit pin 5211 to be engaged with is disposed at one end of the middle rotating shaft 61. The shaft 521 and the limit gear table 60 are connected through the middle rotating shaft 61, so that the assembly and disassembly are more convenient.

For further optimization, an auxiliary torsion spring 80 is preferably arranged between the rotating table 30 and the overturning table 40. The auxiliary torsion spring 80 can provide a certain elastic force to overcome the gravitational potential energy of the fan main body 20 when the fan main body 20 swings downward, and can release the elastic force to assist the lifting of the fan main body 20 when the fan main body 20 swings upward, so that the pressure of the second driving device 51 can be reduced, and the service life of the second driving device 51 can be prolonged. On the basis, the installation of the auxiliary torsion spring 80 is optimized, preferably, an annular inner cavity 522 is arranged in the first driven gear 52, the auxiliary torsion spring 80 is arranged on the annular inner cavity 522, one end of the auxiliary torsion spring 80 is fixed in the annular inner cavity 522, and the other end of the auxiliary torsion spring 80 is fixed on the shell 50.

In the above-described aspect, in order to further stabilize the installation of the first driven gear 52, it is preferable that an auxiliary shaft inserted on the side of the first driven gear 52 away from the shaft 521 be provided in the housing 50.

Preferably, a connecting hole is formed in the rotating table 30, the top of the base 10 is inserted into the connecting hole, a second driven gear 92 is disposed at the upper end of the base 10, and a second driving gear 91 engaged with the second driven gear 92 is disposed at the output end of the first driving device 90.

Further preferably, the base 10 includes a base and a telescopic support rod provided at an upper end of the base, so that the height of the fan body 20 can be conveniently adjusted.

In the above solution, the first driving device 90 and the second driving device 51 are preferably rotating motors.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical scope of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.

Claims

1. An electric fan, comprising:

the device comprises a base (10), wherein a rotating table (30) is arranged at the top of the base (10), and a first driving device (90) which is connected with the top of the base (10) and drives the rotating table (30) to horizontally rotate relative to the base (10) is arranged on the rotating table (30);

the overturning device comprises an overturning platform (40), wherein the overturning platform (40) is pivoted on the rotating platform (30), the overturning platform (40) can vertically rotate relative to the rotating platform (30), one side of the overturning platform (40) is provided with a shell (50) fixedly connected with the overturning platform (40), a second driving device (51) is fixedly installed on the shell (50), and the output end of the second driving device (51) is provided with a first driving gear (53) positioned in the shell (50);

the first driven gear (52) is arranged in the shell (50) and meshed with the first driving gear (53), and one side of the first driven gear (52) is provided with a shaft rod (521) which penetrates through the overturning platform (40) and is relatively fixed with the rotating platform (30);

the electric fan main body (20) is installed on the overturning platform (40).

2. The electric fan as claimed in claim 1, wherein:

the rotary table (30) is provided with a first vertical plate (31), the overturning table (40) is provided with a second vertical plate (41), the first vertical plate (31) is provided with a first through hole, the second vertical plate (41) is provided with a second through hole, the shell (50) is arranged on the inner side of the second vertical plate (41), the shaft lever (521) is inserted into the first through hole and the second through hole, and the shaft lever (521) is connected with the first vertical plate (31).

3. An electric fan as claimed in claim 2, wherein:

the limiting gear table (60) connected with the shaft rod (521) is arranged on the outer side of the first vertical plate (31), a plurality of limiting teeth (601) are arranged on the periphery of the limiting gear table (60), a limiting device clamped on the limiting teeth (601) is arranged on the rotating table (30), an elastic driving piece (71) is arranged on the limiting device, and the surface of the limiting device is in smooth transition with the surface of the limiting teeth (601).

4. An electric fan as claimed in claim 3, wherein:

the limiting teeth (601) occupy less than one third of the periphery of the limiting gear table (60), and the outer side of the limiting tooth (601) at the most edge is provided with a stop lever.

5. An electric fan as claimed in claim 3, wherein:

the outer side fixed mounting of first riser (31) is one and is encircleed in annular connection platform (62) in the first through-hole outside, annular connection platform (62) surface is provided with annular boss, annular connection platform (62) bottom is provided with mounting groove (621), stop device is ejector pin (70) that set up in mounting groove (621), elastic drive spare (71) set up in mounting groove (621) and with ejector pin (70) bottom butt, be provided with the annular groove of cover on annular boss on spacing gear table (60).

6. An electric fan as claimed in claim 3, 4 or 5, wherein:

the end part of the shaft rod (521) is provided with a limiting pin (5211), a mounting hole is formed in the limiting gear table (60), one side, facing the shaft rod (521), of the limiting gear table (60) is provided with a middle rotating shaft (61) connected with the mounting hole through a bolt, and one end of the middle rotating shaft (61) is provided with a limiting groove for the limiting pin (5211) to be clamped in.

7. The electric fan as claimed in claim 1, wherein:

an auxiliary torsion spring (80) is arranged between the rotating table (30) and the overturning table (40).

8. The electric fan as claimed in claim 7, wherein:

be provided with annular inner chamber (522) in first driven gear (52), supplementary torsional spring (80) set up on annular inner chamber (522), the one end of supplementary torsional spring (80) is fixed in annular inner chamber (522), the other end of supplementary torsional spring (80) is fixed in on casing (50).

9. The electric fan as claimed in claim 1, wherein:

the rotary table (30) is provided with a connecting hole, the top of the base (10) is inserted into the connecting hole, a second driven gear (92) is arranged at the upper end of the base (10), and a second driving gear (91) meshed with the second driven gear (92) is arranged at the output end of the first driving device (90).

10. The electric fan as claimed in claim 1, wherein:

the base (10) comprises a base platform and a telescopic supporting rod arranged at the upper end of the base platform.