CN211623786U

CN211623786U - Electric fan

Info

Publication number: CN211623786U
Application number: CN201922497653.6U
Authority: CN
Inventors: 罗尧申
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-02
Anticipated expiration: 2029-12-31

Abstract

The utility model provides an electric fan, including casing, flabellum subassembly, drive arrangement, first drive gear, second drive gear, interlock subassembly, upper and lower runing rest, control runing rest. The driving device is arranged in the shell and drives the fan blades to rotate. The first rotating shafts on the two sides of the upper and lower rotating supports can be correspondingly and rotatably inserted into the mounting holes in the two side walls of the shell respectively, so that the shell can rotate up and down relative to the upper and lower rotating supports. The upper and lower rotating supports are rotatably inserted into the mounting holes of the left and right rotating supports through a second rotating shaft at the bottom, so that the shell rotates left and right relative to the left and right rotating supports. A connecting rod extended from the second transmission gear is movably connected with the linkage component, and the other end of the linkage component is connected with the left and right rotating supports. The driving device drives the second transmission gear to rotate through the first transmission gear, so that the connecting rod rotates and drives the linkage assembly to move on a circulation path, the shell and the fan blade assembly move on the corresponding circulation path, and the electric fan swings up and down and left and right.

Description

Electric fan

Technical Field

The utility model relates to an electric fan especially relates to an electric fan that can shake head from top to bottom and control.

Background

The existing electric fan only has one rotating shaft, so that the electric fan can only shake left and right but not up and down in a use state. Even if the electric fan can simultaneously swing up and down and left and right, the swinging motion in two directions can be realized only through two rotating shafts, so that the structure and the operation of the whole electric fan become very complicated, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric fan that can shake head from top to bottom and control and shake head solves the problem that current electric fan can only shake head from top to bottom.

In order to solve the above problem, the utility model provides an electric fan, including casing, flabellum subassembly, drive arrangement, first drive gear, second drive gear, interlock subassembly, upper and lower runing rest and control runing rest. The inside of the shell is provided with a cavity, and two opposite side walls of the shell are respectively provided with a mounting hole. The fan blade assembly is provided with a plurality of fan blades. The driving device is arranged in the cavity of the shell and drives the fan blades to rotate, and the driving device is provided with a driving end which drives the first transmission gear to rotate. The second transmission gear is meshed with the first transmission gear, so that the first transmission gear drives the second transmission gear to rotate. A connecting rod extends from the edge of the bottom of the second transmission gear, and one end of the linkage component is movably connected with the connecting rod. The two sides of the upper and lower rotating supports are respectively provided with a first rotating shaft, and the first rotating shafts on the two sides of the upper and lower rotating supports are respectively rotatably inserted into the mounting holes on the two side walls of the shell in a one-to-one correspondence manner, so that the shell can rotate up and down relative to the upper and lower rotating supports. The bottom of the upper and lower rotating supports is provided with a second rotating shaft. The top of the left and right rotating support is provided with a mounting hole, the second rotating shaft is rotatably inserted into the mounting hole of the left and right rotating support so as to support the upper and lower rotating support and enable the shell to rotate left and right relative to the left and right rotating support, the other end of the linkage assembly is connected with the left and right rotating support, the second transmission gear rotates to enable the connecting rod to rotate around a central line, and the connecting rod drives the linkage assembly to move on a circulating path so as to force the shell and the fan blade assembly to move on the corresponding circulating path, so that the shell can rotate up and down and rotate left and right simultaneously, and the electric fan can.

According to the utility model discloses an embodiment, the end of connecting rod has ball joint, and the one end of interlock subassembly has the card hole, and the connecting rod has ball joint's one end rotationally joint in the card hole of interlock subassembly.

According to the utility model discloses an embodiment, the interlock subassembly includes shell fragment and interlock support, and the connecting rod is connected to the one end of shell fragment, and interlock leg joint is between shell fragment and left and right sides runing rest.

According to the utility model discloses an embodiment, the shell fragment includes the section of bending and the straight section of an organic whole connection, and the section of bending extends and buckles from the tip of straight section to make the tip of the section of bending and the straight section form the V type, and the card hole is located the portion of bending, and the connecting rod rotationally the card is gone into the card hole, and ball joint is located between the section of bending and the straight section.

According to the utility model discloses an embodiment, the electric fan includes the gear box, and the gear box is located one side of drive arrangement, and first drive gear is located the gear box, and the one end of first drive gear stretches out the gear box outside, and the drive end stretches into the gear box inside and meshes with first drive gear, and second drive gear is located the gear box bottom and meshes with the one end that first drive gear stretches out the gear box.

According to the utility model discloses an embodiment, upper and lower runing rest is the Y type.

According to the utility model discloses an embodiment, the second drive gear is eccentric gear.

Compared with the prior art, the technical scheme has the following advantages:

the utility model is provided with the upper and lower rotating supports and the left and right rotating supports, so that the shell and the fan blade component can rotate up and down relative to the upper and lower rotating supports, and simultaneously, the shell and the fan blade component can also rotate left and right relative to the left and right rotating supports; and the driving device drives the second transmission gear to rotate through the first transmission gear, so that the connecting rod extending from the second transmission gear rotates around a central line, the connecting rod drives the linkage assembly to correspondingly move circularly on a circulating path, and the shell and the fan blade assembly also move on a corresponding circulating path. In this way, especially through the cooperation of the up-and-down rotating bracket and the left-and-right rotating bracket, the electric fan can swing up and down and left and right, and the whole electric fan does not have complex structure and operation at all.

Drawings

Fig. 1 is a schematic structural diagram of the electric fan provided in the embodiment of the present invention;

fig. 2 is an exploded view of the electric fan according to the embodiment of the present invention;

fig. 3A is a rear view of the electric fan according to the embodiment of the present invention when the second transmission gear rotates 90 ° counterclockwise;

fig. 3B is a side view of the electric fan according to the embodiment of the present invention, when the second transmission gear rotates 90 ° counterclockwise;

fig. 4A is a rear view of the electric fan according to the embodiment of the present invention when the second transmission gear rotates counterclockwise by 180 °;

fig. 4B is a side view of the electric fan according to the embodiment of the present invention when the second transmission gear rotates counterclockwise by 180 °;

fig. 5A is a rear view of the electric fan according to the embodiment of the present invention, when the second transmission gear rotates 270 ° counterclockwise;

fig. 5B is a side view of the electric fan according to the embodiment of the present invention, when the second transmission gear rotates 270 ° counterclockwise;

fig. 6A is a rear view of the electric fan according to the embodiment of the present invention when the second transmission gear rotates 360 ° counterclockwise;

fig. 6B is a side view of the electric fan according to the embodiment of the present invention when the second transmission gear rotates 360 ° counterclockwise.

Detailed Description

The following description is only intended to disclose the invention so as to enable any person skilled in the art to practice the invention. The embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other arrangements without departing from the spirit and scope of the invention.

As shown in fig. 1 and 2, the present invention provides an electric fan, and more particularly, to an electric fan capable of oscillating up and down and left and right. Specifically, the electric fan includes a housing 10, a blade assembly 20, a driving device 30, a first transmission gear 40, a second transmission gear 50, a linkage assembly 60, an up-down rotating bracket 70, and a left-right rotating bracket 80.

The housing 10 has a cavity 101 therein, and opposite sidewalls of the housing 10 have mounting holes 102, respectively. Optionally, in this embodiment, the housing 10 is made of plastic, and the mounting hole 102 is a circular through hole located on a side wall of the housing 10.

Blade assembly 20 has a plurality of blades 21 and a shaft.

Drive device 30 is installed in cavity 101 of housing 10, and fan assembly 20 is located at one side of housing 10 and connected to drive device 30, and drive device 30 drives fan 21 to rotate. The driving device 30 has a driving end 31 at the other side of the housing 10. Specifically, the driving device 30 is a motor, and the driving end 31 is a threaded rod having a threaded surface.

Further, the electric fan further includes a gear case 90, and the gear case 90 is fixed to one side of the housing 10 and is located at one side of the driving unit 30 having the driving end 31. The drive end 31 extends into the interior of the gear box 90.

The first transmission gear 40 is located inside the gear case 90, and one end of the first transmission gear 40 protrudes outside the gear case 90. The portion of the drive end 31 extending into the gear box 90 is engaged with the first transmission gear 40 such that the drive device 30 drives the first transmission gear 40 to rotate via the drive end 31.

The second transmission gear 50 is located at the bottom of the gear box 90 and is meshed with one end of the first transmission gear 40 extending out of the gear box 90, so that the first transmission gear 40 drives the second transmission gear 50 to rotate. A link rod 51 vertically extends downward from the bottom edge of the second transmission gear 50, so that when the second transmission gear 50 rotates, the second transmission gear 50 also forces the link rod 51 to rotate around a center line. The bottom end of the link 51 has a ball joint 511. Optionally, the second drive gear 50 is an eccentric gear.

One end of the linking component 60 is movably linked with the connecting rod 51, so that the connecting rod 51 drives the linking component 60 to move in a circulating path. It can be understood that, since the connecting rod 51 rotates around a vertical center line, that is, the connecting rod 51 moves in an endless path, the linkage assembly 60 also moves along a corresponding endless path. One end of the linkage assembly 60 has a locking hole 601, and one end of the link 51 having the ball joint 511 is rotatably locked with the locking hole 601 of the linkage assembly 60, so that the link 51 can rotate relative to the linkage assembly 60.

Further, the linkage assembly 60 includes a spring plate 61 and a linkage bracket 62, one end of the spring plate 61 is movably connected to the link 51, and one end of the linkage bracket 62 is connected to the other end of the spring plate 61. Specifically, the elastic sheet 61 includes a bent segment 611 and a straight segment 612 that are integrally connected, and the bent segment 611 extends from an end of the straight segment 612 and is bent, so that the bent segment 611 and the end of the straight segment 612 form a V shape. The fastening hole 601 is located at the bending section 611, and the fastening hole 601 has a notch, the connecting rod 51 is rotatably fastened into the fastening hole 601 through the notch of the fastening hole 601, and the ball joint 511 is located between the bending section 611 and the flat section 612.

The upper and lower rotating brackets 70 are Y-shaped, and both sides of the upper and lower rotating brackets 70 are respectively provided with a horizontal first rotating shaft 71, and the two first rotating shafts 71 are opposite to each other at intervals, and a space is formed between the two first rotating shafts 71. The first rotating shafts 71 at two sides of the up-down rotating bracket 70 are respectively rotatably inserted into the mounting holes 102 at two side walls of the casing 10, so that the casing 10 and the fan blade assembly 20 are integrally rotated up and down relative to the up-down rotating bracket 70, thereby realizing the up-down swinging of the electric fan. The lower and upper rotating brackets 70 have a vertical second rotating shaft 72 at the bottom thereof.

Left and right rotating bracket 80 is in a vertical column shape and has a mounting hole 801 at the top, and second rotating shaft 72 of up-down rotating bracket 70 is rotatably and vertically inserted into mounting hole 801 of left and right rotating bracket 80 to support up-down rotating bracket 70, and make housing 10 and fan blade assembly 20 rotate left and right relative to left and right rotating bracket 80. One end of the interlocking unit 60 is connected to the link 51, and the other end of the interlocking unit 60 is connected to the left and right rotating brackets 80. Specifically, the interlocking bracket 62 of the interlocking assembly 60 is fixedly connected to the side wall of the left and right rotating bracket 80 by a screw, so that the interlocking bracket 62 is connected between the elastic sheet 61 and the left and right rotating bracket 80. The left and right swivel supports 80 are fixedly attached to the base during use.

When the electric fan works, the driving device 30 is powered on to drive the first transmission gear 40 to rotate, one end of the first transmission gear 40 extending out of the gear box 90 drives the second transmission gear 50 to rotate, the second transmission gear 50 rotates to enable the connecting rod 51 to rotate around a vertical central line, and the connecting rod 50 drives the whole linkage assembly 60 to integrally move in a circulating path. Since the linking assembly 60, the vertical rotation bracket 70, the left and right rotation brackets 80, the housing 10 and the fan blade assembly 20 are integrally connected, when the left and right rotation brackets 80 are fixed on the base and the linking assembly 60 moves along a circular path, the linking assembly 60 forces the housing 10 and the fan blade assembly 20 to rotate up and down relative to the vertical rotation bracket 70, and the housing 10 and the fan blade assembly 20 also rotate left and right relative to the left and right rotation brackets 80. That is, the housing 10 together with the fan assembly 20 are actually moved in a 360 ° cycle on a corresponding cycle path to realize simultaneous up-down rotation and left-right rotation. In this way, the electric fan can swing up and down and left and right.

Fig. 3A to 6B show the structure of the electric fan in four consecutive operating states, so that the moving paths of the housing 10 and the fan blade assembly 20 form a continuous closed circulating path. It should be noted that the terms of "up and down," "horizontal," "vertical," "left and right," "front and back" and the like in this specification are based on the direction of the electric fan in the drawings. The reference state position is a normal position (a position where the housing 10 and the blade assembly 20 of the electric fan shown in fig. 3A and 3B are not rotated up and down or rotated left and right) in which they are held. The driving device 30 drives the second transmission gear 50 to rotate continuously through the first transmission gear 40, and when the second transmission gear 50 rotates 90 degrees counterclockwise, the electric fan moves from the state of fig. 3A and 3B to the state of fig. 4A and 4B, at this time, the whole actual moving path of the housing 10 and the fan blade assembly 20 moves from the reference position to the lower left; when the second transmission gear 50 rotates 180 degrees counterclockwise, the electric fan moves from the state of fig. 4A and 4B to the state of fig. 5A and 5B, and the actual moving path of the whole housing 10 and the fan blade assembly 20 moves to the upper left; when the second transmission gear 50 rotates by 270 ° counterclockwise, the electric fan moves from the state of fig. 5A and 5B to the state of fig. 6A and 6B, and the actual moving path of the whole housing 10 and the fan blade assembly 20 moves to the lower right; when the second transmission gear 50 rotates 360 ° counterclockwise, the electric fan returns from the state of fig. 6A and 6B to the state of fig. 3A and 3B, and the actual movement path of the whole housing 10 and the fan blade assembly 20 moves to the upper right until returning to the reference position of fig. 3A and 3B for the next cycle. In the whole circulating motion process, the electric fan can swing up and down and left and right simultaneously.

It is to be understood by persons skilled in the art that the embodiments of the present invention described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the invention have been shown and described in the embodiments without departing from the principles of the invention, embodiments of the invention may be subject to any deformation and modification.

Claims

1. An electric fan, comprising:

the device comprises a shell, a fixing device and a control device, wherein a cavity is formed in the shell, and two opposite side walls of the shell are respectively provided with a mounting hole;

a fan blade assembly having a plurality of fan blades;

the driving device is arranged in the cavity of the shell and drives the fan blades to rotate, and the driving device is provided with a driving end;

the driving end drives the first transmission gear to rotate;

the second transmission gear is meshed with the first transmission gear so that the first transmission gear drives the second transmission gear to rotate, and a connecting rod extends out of the bottom edge of the second transmission gear;

one end of the linkage component is movably connected with the connecting rod;

the upper and lower rotating supports are respectively provided with a first rotating shaft at two sides, the first rotating shafts at two sides of the upper and lower rotating supports are respectively rotatably inserted into the mounting holes on two side walls of the shell in a one-to-one correspondence manner so as to enable the shell to rotate up and down relative to the upper and lower rotating supports, and the bottom of the upper and lower rotating supports is provided with a second rotating shaft;

the top of the left and right rotating bracket is provided with a mounting hole, the second rotating shaft is rotatably inserted into the mounting hole of the left and right rotating bracket to support the upper and lower rotating brackets and enable the shell to rotate left and right relative to the left and right rotating brackets, the other end of the linkage assembly is connected with the left and right rotating brackets, the second transmission gear rotates to enable the connecting rod to rotate around a central line, the connecting rod drives the linkage assembly to move on a circulating path to force the shell and the fan blade assembly to move on the corresponding circulating path so as to realize simultaneous up-down rotation and left-right rotation, and therefore the electric fan can swing up and down and left and right.

2. The electric fan as claimed in claim 1, wherein the link has a ball joint at a distal end thereof, the link has a locking hole at one end thereof, and the link has an end thereof rotatably locked to the locking hole of the link.

3. The electric fan according to claim 2, wherein the linking assembly comprises a spring and a linking bracket, one end of the spring is connected with the connecting rod, and the linking bracket is connected between the spring and the left and right rotating brackets.

4. The electric fan as claimed in claim 3, wherein the resilient tab comprises a bent section and a straight section integrally connected, the bent section extends from an end of the straight section and is bent so that the bent section and the end of the straight section form a V-shape, the locking hole is located in the bent section, the connecting rod is rotatably locked in the locking hole, and the spherical joint is located between the bent section and the straight section.

5. The electric fan as claimed in any one of claims 1 to 4, wherein the electric fan comprises a gear box, the gear box is positioned on one side of the driving device, the first transmission gear is positioned in the gear box, one end of the first transmission gear extends out of the gear box, the driving end extends into the gear box and is meshed with the first transmission gear, and the second transmission gear is positioned at the bottom of the gear box and is meshed with one end of the first transmission gear, which extends out of the gear box.

6. The electric fan as claimed in any one of claims 1 to 4, wherein the upper and lower rotating frames are Y-shaped.

7. The electric fan according to any of claims 1 to 4, wherein the second transmission gear is an eccentric gear.