CN214196717U

CN214196717U - Desk type circulating fan

Info

Publication number: CN214196717U
Application number: CN202022556910.1U
Authority: CN
Inventors: 刘璐璐
Original assignee: Foshan Qianhe Kemai Electrical Appliance Co ltd
Current assignee: Foshan Qianhe Kemai Electrical Appliance Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-09-14
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a desk-top circulation fan, which comprises a base, a rotary driving unit and a fan component, wherein the base is provided with a pillar with an axis extending up and down; the fan assembly comprises a fan cover body, a wind wheel and a fan motor, the fan motor is installed on the fan cover body, the fan motor is provided with a rotating output shaft which is in coaxial transmission connection with the wind wheel, the rotating output shaft is in transmission connection with the fan cover body, and an included angle between the axis of the rotating output shaft and the axis of the rotating output shaft is an obtuse angle. The fan cover body can swing in a left-right and up-down three-dimensional rotation mode, and then three-dimensional air supply of the circulating fan can be achieved under the driving of one rotation driving unit, the structure of the circulating fan is more compact, meanwhile, under the supporting effect of the supporting columns, the horizontal height of the fan assembly can be improved, and the air supply range is further enlarged.

Description

Desk type circulating fan

Technical Field

The utility model relates to a field of fan, in particular to desktop circulation fan.

Background

The existing fan usually has the function of swinging the fan head left and right in the horizontal direction or swinging the fan head up and down in the vertical direction, so as to enlarge the air supply range. The existing circulating fan has the functions of swinging up and down, left and right, and generally needs to drive a fan to realize turnover and rotation through two drives, so that three-dimensional air supply is realized, the structure is complex, the production and use cost is increased, the integral volume of the circulating fan is expanded, and miniaturization is difficult to realize.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a desk-top circulation fan to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.

The technical scheme adopted for solving the technical problems is as follows:

a desk-top circulation fan comprising: the fan assembly comprises a base, a rotary driving unit and a fan assembly, wherein the base is provided with a support column of which the axis extends up and down, the rotary driving unit is arranged at the upper end of the support column and is provided with a rotary output shaft, and an included angle between the axis of the rotary output shaft and the axis of the support column is an obtuse angle; the fan subassembly includes the fan housing body, wind wheel, fan motor installs on the fan housing body, fan motor have with the rotation output shaft that the coaxial transmission of wind wheel is connected, rotatory output shaft with the fan housing body transmission is connected, the axis of rotatory output shaft with contained angle between the axis of rotation output shaft is the obtuse angle.

The utility model has the advantages that: when the circulating fan is used, the fan motor drives the wind wheel to rotate through the rotating output shaft, when the air supply range of the circulating fan needs to be enlarged, the fan cover body is driven to rotate around the axis of the rotating output shaft through the rotating output shaft on the rotating driving unit, and because the included angle between the axis of the rotating output shaft and the included angle between the axis of the rotating output shaft and the axis of the supporting column are obtuse angles, the fan cover body can swing in a left-right and up-down three-dimensional rotating mode, the three-dimensional air supply of the circulating fan can be achieved under the driving of one rotating driving unit, the structure of the circulating fan is more compact, the circulating fan can be miniaturized, the circulating fan can be placed on table boards of various occasions to occupy space, and meanwhile, the horizontal height of the fan assembly can be improved under the supporting effect of the supporting column, and the air supply range is further enlarged.

As a further improvement of the above technical solution, the circulation fan further includes a swing driving assembly mounted on the base, and the swing driving assembly is provided with a swing driving end which is in transmission connection with the lower end of the pillar and drives the pillar to rotate around its own axis.

In addition, this scheme still provides the swing drive assembly and drives the pillar and rotate around its self axis, can make whole fan assembly can be around the axis swing of pillar like this, enlarges the air supply scope of circulation fan in the left and right directions.

As a further improvement of the above technical solution, the lower end of the pillar is rotatably mounted on the base by its own axis, the swing driving assembly includes a swing motor, a transmission rod, and a swing curved member, the swing motor is provided with a swing output shaft whose axis extends up and down, one end of the transmission rod is connected with the swing output shaft, the axis of the transmission rod is perpendicular to the axis of the swing output shaft, the other end of the transmission rod is hinged to one end of the swing curved member, and the other end of the swing curved member is eccentrically hinged to the lower end of the pillar.

Under the drive of the swing motor to drive the drive rod to rotate, the drive rod drives the swing curved piece to swing, and at the moment, the swing curved piece can drive the support to swing around the axis of the support at a set amplitude, so that the conventional swing motor can be used, and the manufacturing cost is reduced.

As a further improvement of the above technical solution, the rotation driving unit is a rotation stepping motor. This scheme realizes the space three-dimensional head shaking through rotatory step motor, at this moment can be according to the demand, adjusts rotatory step motor pivoted angle, avoids the wire winding excessive, reduces the degree of difficulty of design, also makes the hood body at the rotation range internal rotation of settlement simultaneously.

As a further improvement of the technical scheme, the axis of the rotating output shaft can be horizontally arranged.

At this moment, the initial state of the wind shield body can be set in a way that the axis of the rotating output shaft is horizontally arranged, and meanwhile, the rotating output shaft rotates to the lowest end around the rotating output shaft, so that the air supply of the circulating fan is arranged on the upper side, and the daily requirements of people are met.

As a further improvement of the above technical solution, the circulation fan further includes a rotation head, the rotation head is provided with a connection end fixedly connected with the fan housing body and a rotation end coaxially connected with the rotation output shaft, and the connection end is coaxially arranged with the rotation output shaft.

The rotating output shaft drives the wind shield body to rotate through the rotating head, so that the supporting column does not interfere with the rotation of the wind shield body, the wind shield body with a larger size can be used, and the wind wheel with a larger radius can be used.

As a further improvement of the above technical solution, a rotating ring is disposed at an upper end of the pillar and coaxially disposed with the rotating output shaft, a rotating sleeve rotatably sleeved with the rotating ring is disposed at the rotating end, and the rotation driving unit is disposed in the rotating ring.

Under the normal running fit of rotatory ring and swivel sleeve, can improve the stability and the fastness that rotate the head and support, the ability of bearing is bigger, and then can use the hood body of bigger size, also plays the effect of hiding the installation to rotation drive unit simultaneously.

As a further improvement of the above technical solution, the fan housing body includes a front fan housing and a rear fan housing, the front fan housing is mounted on a front side of the rear fan housing, the wind wheel is disposed between the front fan housing and the rear fan housing, the fan motor is fixed to the rear fan housing, and a back side of the rear fan housing is connected to the connection end.

The front fan cover is responsible for air outlet, and the back fan cover is responsible for air inlet, and under the parcel of front fan cover and back fan cover, can avoid the wind wheel to touch foreign matter or people.

As a further improvement of the above technical solution, a handle is provided on the back side of the rear wind cover, and the support is a telescopic rod structure that can be freely stretched and fixed. When the lifting type circulating fan is used, the circulating fan can be extracted through the lifting handle, the height of the supporting column can be adjusted according to different requirements, and the lifting type circulating fan is convenient to use.

As a further improvement of the above technical scheme, the periphery of the front side of the rear fan housing is provided with a second rotary clamping portion which is arranged at a plurality of first rotary clamping portions at annular intervals, and is in one-to-one corresponding rotary clamping with a plurality of rotary clamping grooves.

When the circulating fan is cleaned or maintained, the front fan cover and the rear fan cover can be separated in a mode of rotating the front fan cover.

Drawings

The present invention will be further explained with reference to the drawings and examples;

fig. 1 is a schematic front side view of an embodiment of a desk type circulation fan provided by the present invention;

fig. 2 is a rear side schematic view of an embodiment of a desk type circulation fan provided by the present invention;

FIG. 3 is an exploded view of an embodiment of a desk-top circulation fan provided by the present invention;

fig. 4 is an internal schematic view of an embodiment of the base according to the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, 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, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, the table type circulation fan of the present invention makes the following embodiments:

the circulation fan of this embodiment includes base 100, rotatory step motor 400, fan subassembly 300, and base 100 is provided with the axis and is the pillar 110 of extending from top to bottom, and rotatory step motor 400 is installed in the upper end of pillar 110, and rotatory step motor 400 has rotatory output shaft 200, the axis of rotatory output shaft 200 with the contained angle between the axis of pillar 110 is the obtuse angle.

The fan assembly 300 includes a fan housing 310, a wind wheel 320, and a fan motor 330, which includes a front fan housing 311 and a rear fan housing 312, the front fan housing 311 is installed at the front side of the rear fan housing 312, the wind wheel 320 is disposed between the front fan housing 311 and the rear fan housing 312, the fan motor 330 is fixed to the rear fan housing 312, and the rotary output shaft 200 is in transmission connection with the back side of the rear fan housing 312.

For convenience of use, a lifting handle 313 is provided on the back side of the rear wind cover 312, and the circulation fan can be extracted through the lifting handle 313 when in use.

The fan motor 330 has a rotation output shaft 331 coaxially connected with the wind wheel 320 in a transmission manner, the rotation output shaft 200 is connected with the wind hood body 310 in a transmission manner, and an included angle between an axis of the rotation output shaft 200 and an axis of the rotation output shaft 331 is an obtuse angle.

In use, fan motor 330 drives wind rotor 320 to rotate via rotational output shaft 331. When the air supply range of the circulating fan needs to be expanded, the rotary stepping motor 400 drives the fan body 310 to rotate around the axis of the rotary output shaft 200 through the rotary output shaft 200, and because the included angle between the axis of the rotary output shaft 200 and the axis of the rotary output shaft 331 and the included angle between the axis of the rotary output shaft 200 and the axis of the support post 110 are obtuse angles, the fan body 310 can swing in a left-right and up-down three-dimensional rotation mode, and further the three-dimensional air supply of the circulating fan can be realized under the driving of a rotary driving unit, so that the structure of the circulating fan is more compact and miniaturized, the fan can be placed on a table board in various occasions to occupy space, and simultaneously, under the supporting effect of the support post 110, the horizontal height of the fan assembly 300 can be improved, and the air supply range is further expanded.

This embodiment realizes the space three-dimensional shaking head through rotatory step motor 400, can adjust rotatory step motor 400 pivoted angle according to the demand at this moment, avoids the wire winding excessive, reduces the degree of difficulty of design, also makes the wind shield body 310 internal rotation at the rotation amplitude who sets for simultaneously. Compared with the traditional driving structure, the space occupied by the rotating structure of the circulating fan can be greatly reduced.

Further, the present embodiment also provides a swing drive assembly to drive the support post 110 to rotate about its own axis, specifically: a rotation hole for installing the support post 110 is provided at the base 100, a lower end of the support post 110 is rotatably installed at the rotation hole by its own axis, while the interior of the base 100 is provided with a mounting cavity for mounting other electrical components and a swing driving assembly, and the swing driving assembly includes a swing motor 600, a driving lever 610, a swing curve 620, the swing motor 600 is provided with a swing output shaft 630 whose axis extends up and down, one end of the transmission rod 610 is connected with the swing output shaft 630, the axis of the transmission rod 610 is perpendicular to the axis of the swing output shaft 630, the other end of the transmission rod 610 is hinged with one end of the swing curved member 620, the other end of the swing curved member 620 is eccentrically hinged to the lower end of the support column 110, the lower end of the support column 110 in this embodiment is further connected to an eccentric rotating block, and the lower end of the support column 110 is hinged to the swing curved member 620 through the eccentric rotating block. Under the drive of the swing motor 600 to drive the transmission rod 610 to rotate, the transmission rod 610 drives the swing curved member 620 to swing, and at this time, the swing curved member 620 can drive the support column 110 to swing around the axis of the support column at a set amplitude, so that the conventional swing motor 600 can be used, and the manufacturing cost is reduced. This allows the entire fan assembly 300 to swing around the axis of the support column 110, and expands the blowing range of the circulation fan in the left-right direction.

In this embodiment, when the rotation output shaft 331 rotates to the lowest end around the rotation output shaft 200, which is also the initial state of the wind shield body 310, the axis of the rotation output shaft 331 can be horizontally arranged, which enables the air supply of the circulation fan to be arranged on the upper side, and meets the daily requirement of people.

In addition, in order to prevent the support column 110 from interfering with the rotation of the wind shield body 310 and to use the wind shield body 310 with a larger size, the circulation fan of this embodiment further includes a rotating head 500, the rotating head 500 is provided with a connecting end 510 fixedly connected with the wind shield body 310 and a rotating end 520 coaxially connected with the rotating output shaft 200, the connecting end 510 is coaxially arranged with the rotating output shaft 331, and at this time, the rotating output shaft 331 drives the wind shield body 310 to rotate through the rotating head 500, so that the support column 110 does not interfere with the rotation of the wind shield body 310.

Furthermore, the upper end of the pillar 110 is provided with a rotating ring 111 coaxially arranged with the rotating output shaft 331, the rotating end 520 is provided with a rotating sleeve rotatably sleeved with the rotating ring 111, the rotating driving unit is arranged in the rotating ring 111, and under the rotating fit of the rotating ring 111 and the rotating sleeve, the stability and firmness of the support of the rotating head 500 can be improved, the bearing capacity is higher, and then the wind cover body 310 with a larger size can be used, and meanwhile, the rotating driving unit also has the function of hidden installation.

Simultaneously the periphery of back fan housing 312 front side is provided with and is set up in a plurality of first rotatory joint portion of annular interval the periphery of preceding fan housing 311 rear side is provided with the rotatory joint portion of second with a plurality of rotatory draw-in grooves one-to-one rotatory joint, and first rotatory joint portion in this embodiment is rotatory draw-in groove, and rotatory joint portion of second is rotatory buckle, when wasing the circulation fan or when maintaining, the fan housing 311 and back fan housing 312 before the accessible is decomposed to the mode of rotatory fan housing 311.

In some embodiments, the swing driving assembly may also be another driving structure, and only needs to have a swing driving end that is in transmission connection with the lower end of the supporting column 110 and drives the supporting column 110 to rotate around its own axis.

In some embodiments, the rotary stepper motor 400 may be replaced with a conventional motor if the winding of the wire is not considered or if wireless power is used.

In some embodiments, the support post 110 is a telescopic rod structure that can be freely telescopic and fixed.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. A desk-top circulation fan which characterized in that: it includes:

a base (100) provided with a support column (110) having an axis extending vertically;

the rotary driving unit is arranged at the upper end of the support column (110), the rotary driving unit is provided with a rotary output shaft (200), and an included angle between the axis of the rotary output shaft (200) and the axis of the support column (110) is an obtuse angle;

fan subassembly (300), it includes the wind hood body (310), wind wheel (320), fan motor (330) is installed on the wind hood body (310), fan motor (330) have with rotation output shaft (331) that wind wheel (320) coaxial transmission is connected, rotatory output shaft (200) with the wind hood body (310) transmission is connected, the axis of rotatory output shaft (200) with the contained angle between the axis of rotating output shaft (331) is the obtuse angle.

2. A desk type circulation fan as set forth in claim 1, wherein:

the circulating fan further comprises a swing driving assembly installed on the base (100), and the swing driving assembly is provided with a swing driving end which is in transmission connection with the lower end of the support column (110) and drives the support column (110) to rotate around the axis of the support column (110).

3. A desk type circulation fan as set forth in claim 2, wherein:

but the lower extreme self axis of pillar (110) is installed on base (100) with rotating, swing drive assembly includes swing motor (600), transfer line (610), the bent piece of swing (620), swing motor (600) are provided with swing output shaft (630) that the axis is extension from top to bottom, the one end of transfer line (610) with swing output shaft (630) are connected, the axis of transfer line (610) with the axis of swing output shaft (630) is perpendicular, the other end of transfer line (610) with the one end of the bent piece of swing (620) is articulated, the other end of the bent piece of swing (620) with pillar (110) lower extreme off-centre is articulated.

4. A desk type circulation fan as set forth in claim 1, wherein:

the rotary drive unit is a rotary stepper motor (400).

5. A desk type circulation fan as set forth in claim 1, wherein:

the axis of the rotating output shaft (331) can be horizontally arranged.

6. A desk type circulation fan as set forth in claim 1, wherein:

the circulating fan further comprises a rotating head (500), the rotating head (500) is provided with a connecting end (510) fixedly connected with the wind cover body (310) and a rotating end (520) coaxially connected with the rotating output shaft (200), and the connecting end (510) and the rotating output shaft (331) are coaxially arranged.

7. A desk type circulation fan as claimed in claim 6, wherein:

the upper end of the support column (110) is provided with a rotating ring (111) which is coaxial with the rotating output shaft (331), the rotating end (520) is provided with a rotating sleeve which is rotatably sleeved with the rotating ring (111), and the rotating driving unit is arranged in the rotating ring (111).

8. A desk type circulation fan as claimed in claim 6, wherein:

the wind shield body (310) comprises a front wind shield body (311) and a rear wind shield body (312), the front wind shield body (311) is installed on the front side of the rear wind shield body (312), the wind wheel (320) is arranged between the front wind shield body (311) and the rear wind shield body (312), the fan motor (330) is fixed on the rear wind shield body (312), and the back side of the rear wind shield body (312) is connected with the connecting end (510).

9. A desk type circulation fan as claimed in claim 8, wherein:

a handle part (313) is arranged on the back side of the rear wind cover (312), and the support column (110) is a telescopic rod structure which can be freely stretched and fixed.

10. A desk type circulation fan as claimed in claim 8, wherein:

the periphery of back fan housing (312) front side is provided with and is the annular interval and sets up in a plurality of first rotatory joint portion the periphery of preceding fan housing (311) rear side is provided with the rotatory joint portion of second with a plurality of rotatory draw-in grooves one-to-one rotatory joint.