CN217380958U

CN217380958U - Fan head shaking mechanism and fan

Info

Publication number: CN217380958U
Application number: CN202220573814.4U
Authority: CN
Inventors: 郑传亮; 刘建伟; 王定宝; 黎文年; 肖庆; 曹港生
Original assignee: Zhongshan Shihao Electric Appliance Co ltd
Current assignee: Zhongshan Shihao Electric Appliance Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-09-06
Anticipated expiration: 2032-03-16

Abstract

The utility model relates to a fan field, especially a fan mechanism of shaking head. The fan oscillating mechanism comprises an alternating current motor, a first driving wheel, a second driving wheel and a third driving wheel; the front part of the first driving wheel is provided with a first incomplete gear, the rear part of the first driving wheel is provided with a first gear, the front part of the second driving wheel is provided with a second incomplete gear, the rear part of the second driving wheel is provided with a second gear, the first gear is meshed with the second gear, and the alternating current motor is in transmission connection with the first driving wheel; the first incomplete gear can be meshed with the third driving wheel, the first incomplete gear rotates for a certain angle and then is separated from the third driving wheel, and then the second incomplete gear can be meshed with the third driving wheel. The utility model provides a pair of fan oscillating mechanism has the advantage that the cost is lower and torsion is great.

Description

Fan oscillating mechanism and fan

Technical Field

The utility model relates to a fan field, especially a fan shakes first mechanism and fan.

Background

The fan is generally provided with a fan oscillating mechanism to control the fan to oscillate reciprocally, the prior art generally adopts a four-bar structure or a gear structure as a mechanism for controlling the fan to oscillate, and the four-bar structure can only realize an oscillating angle below 90 degrees and is easy to wear, so that the current mainstream adopts a gear to carry out transmission.

Adopt gear drive mode, need to adopt step motor as power unit could output reciprocating rotation's power, need control the turned angle of step motor output through the circuit board in addition, this kind of scheme has two kinds of shortcomings: 1. the cost is high, and because the stepping motor can only be driven by a direct-current power supply, the stepping motor needs to be additionally matched with a circuit board for use, so that parts are added; 2. the torsion output by the stepping motor is small.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims to provide a: provides a reciprocating oscillating mechanism and a fan, which have lower cost and larger torsion.

The utility model discloses a technical scheme that the solution problem adopted is: a fan oscillating mechanism comprising:

the alternating current motor is used for driving the first driving wheel, the second driving wheel and the third driving wheel;

the front part of the first driving wheel is provided with a first incomplete gear, the rear part of the first driving wheel is provided with a first gear, the front part of the second driving wheel is provided with a second incomplete gear, the rear part of the second driving wheel is provided with a second gear, the first gear is meshed with the second gear, and the alternating current motor is in transmission connection with the first driving wheel;

the first incomplete gear can be meshed with the third driving wheel, the first incomplete gear is separated from the third driving wheel after rotating for a certain angle, then the second incomplete gear can be meshed with the third driving wheel, the second incomplete gear is separated from the third driving wheel after rotating for a certain angle, and then the first incomplete gear can be meshed with the third driving wheel again.

As a further improvement of the above technical solution, the alternating current motor is a synchronous motor.

As a further improvement of the above technical solution, the third driving wheel includes a third gear and thickened teeth, the thickened teeth are provided at the front of the third gear, and the number of the thickened teeth is two;

and the gear teeth of the first incomplete gear and the gear teeth of the second incomplete gear are respectively provided with a clearance avoiding part, the thickened gear can pass through the clearance avoiding part, and the clearance avoiding part is arranged on the gear teeth in the middle of the first incomplete gear and the gear teeth in the middle of the second incomplete gear.

As a further improvement of the above technical solution, a tooth groove of the third gear is provided between the two thickened teeth, and one adjacent gear tooth and one tooth groove of the third gear are connected to one thickened tooth.

As a further improvement of the technical scheme, the motor cover further comprises a motor shell, a motor cover, a mounting frame and a machine head shell;

the motor is fixedly arranged on the rear side of the motor cover, the motor cover is fixedly connected with the motor shell, an installation cavity is formed in the motor shell, the first driving wheel and the second driving wheel are arranged in the installation cavity, the first driving wheel, the second driving wheel and the third driving wheel are rotatably connected with the motor shell, and the front part of the third driving wheel protrudes out of the front side of the motor shell;

the motor shell and the motor cover are both arranged in the machine head shell, the motor shell is fixedly arranged on the machine head shell, an avoidance through hole is formed in the machine head shell, and the front part of the third driving wheel is rotatably arranged in the avoidance through hole;

the mounting frame is fixedly connected with the front part of the third driving wheel.

As the further improvement of the technical scheme, the novel bending machine head further comprises a volute spiral spring, wherein a limiting column is arranged in the machine head shell, the bending part is fixedly connected with the limiting column, the inner end of the volute spiral spring is connected with a rotating disc, the rotating disc is fixedly installed on the mounting rack, the rotating disc is rotatably connected with the rear part of the machine head shell, and the outer end of the volute spiral spring is provided with the bending part.

A fan comprises a fan head-shaking mechanism, a motor shell, a motor cover, a mounting frame, a head shell, blades, a protective cover, a base and an upright post, wherein the motor shell is arranged on the head-shaking mechanism;

the mounting rack is fixedly connected with the front part of the third driving wheel;

the protection casing fixed mounting be in on the aircraft nose shell, the blade is located in the protection casing, the stand with the bottom fixed connection of mounting bracket, stand fixed mounting be in the center at the top of base.

The utility model has the advantages that: compared with a stepping motor, the motor has the advantages of lower cost and larger torsion; the alternating current motor is adopted, and a user can manually adjust the shaking angle; the oscillating mechanism can be used on a left-right oscillating mechanism and an up-down oscillating mechanism of the fan.

Drawings

The invention will be further explained with reference to the drawings and the detailed description.

Fig. 1 is a perspective view of a fan oscillating mechanism provided by the present invention;

FIG. 2 is an exploded view of the oscillating fan mechanism;

FIG. 3 is a perspective view of a third drive wheel;

fig. 4 is a connection structure diagram of the first driving wheel, the second driving wheel and the third driving wheel in the oscillating mechanism of the fan according to the present invention in one state;

fig. 5 is a connecting structure diagram of the first driving wheel, the second driving wheel and the third driving wheel in another state in the oscillating mechanism of the fan provided by the present invention;

FIG. 6 is a perspective view of the nose shell;

fig. 7 is a structural diagram of the fan provided by the present invention.

In the figure: 1. a first drive pulley; 101. a first incomplete gear; 102. a first gear; 103. an escape position; 20. a second transmission wheel; 201. a second incomplete gear; 202. A second gear; 30. a third transmission wheel; 301. a third gear; 302. thickening the teeth; 40. an alternating current motor; 50. a motor housing; 60. a motor cover; 70. a mounting frame; 80. a handpiece shell; 801. avoiding the through hole; 802. a limiting column; 10. rotating the disc; 11. a volute spiral spring; 111. a bending part; 13. a blade; 14. a protective cover; 15. a base; 16. And (4) a column.

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, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, 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 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 6, a fan oscillating mechanism includes:

an alternating current motor 40, a first transmission wheel 1, a second transmission wheel 20 and a third transmission wheel 30;

the front part of the first driving wheel 1 is provided with a first incomplete gear 101, the rear part of the first driving wheel 1 is provided with a first gear 102, the front part of the second driving wheel 20 is provided with a second incomplete gear 201, the rear part of the second driving wheel 20 is provided with a second gear 202, the first gear 102 is meshed with the second gear 202, and the alternating current motor 40 is in transmission connection with the first driving wheel 1;

the first incomplete gear 101 can be meshed with the third transmission wheel 30, the first incomplete gear 101 is separated from the third transmission wheel 30 after rotating for a certain angle, then the second incomplete gear 201 can be meshed with the third transmission wheel 30, the second incomplete gear 201 is separated from the third transmission wheel 30 after rotating for a certain angle, and then the first incomplete gear 101 can be meshed with the third transmission wheel 30 again.

When the alternating current motor 40 is started, the alternating current motor 40 drives the first gear 102 to rotate, the first gear 102 is meshed with the second gear 202, therefore, the first gear 102 can drive the second gear 202 to rotate, the rotation directions of the first gear 102 and the second gear 202 are opposite, meanwhile, the first gear 102 and the second gear 202 respectively drive the first incomplete gear 101 and the second incomplete gear 201 to rotate, and as the first incomplete gear 101 and the second incomplete gear 201 are alternately meshed with the third gear 301, the head shell 80 can be driven to alternately rotate in a reciprocating mode. Can reciprocate up and down or left and right according to the requirement.

The ac motor 40 is a synchronous motor. The alternating current is adopted without being additionally matched with a circuit board, the cost is low, and the rotating speed is uniform.

The third transmission wheel 30 comprises a third gear 301 and thickened teeth 302, the thickened teeth 302 are arranged at the front part of the third gear 301, and the number of the thickened teeth 302 is two; avoidance spaces 103 are formed in one gear tooth of the first incomplete gear 101 and one gear tooth of the second incomplete gear 201, the thickened teeth 302 can pass through the avoidance spaces 103, and the avoidance spaces 103 are formed in the gear teeth in the middle of the first incomplete gear 101 and the gear teeth in the middle of the second incomplete gear 201. Under the action of the thickened teeth 302 and the clearance 103, damage caused by tooth beating can be prevented from being reduced when the first incomplete gear 101 and the second incomplete gear 201 are alternately meshed with the third gear 301, and the gear teeth of the third gear 301 are prevented from being damaged by generated pressure.

A tooth groove of the third gear 301 is arranged between the two thickened teeth 302, and one adjacent tooth and one tooth groove of the third gear 301 are connected with one thickened tooth 302.

The motor comprises a motor shell 50, a motor cover 60, a mounting rack 70 and a machine head shell 80;

the motor is fixedly arranged on the rear side of the motor cover 60, the motor cover 60 is fixedly connected with the motor casing 50, an installation cavity is formed in the motor casing 50, the first driving wheel 1 and the second driving wheel 20 are arranged in the installation cavity, the first driving wheel 1, the second driving wheel 20 and the third driving wheel 30 are rotatably connected with the motor casing 50, and the front part of the third driving wheel 30 protrudes out of the front side of the motor casing;

the motor casing 50 and the motor cover 60 are both arranged in the nose casing 80, the motor casing 50 is fixedly mounted on the nose casing 80, an avoidance through hole 801 is formed in the nose casing 80, and the front part of the third transmission wheel 30 is rotatably mounted in the avoidance through hole 801; the assembly is convenient, and the first transmission wheel 1, the second transmission wheel 20 and the third transmission wheel 30 are effectively matched.

The mounting bracket 70 is fixedly connected with the front part of the third transmission wheel 30.

Still include volute spiral spring 11, be equipped with spacing post 802 in the aircraft nose shell 80, volute spiral spring 11's outer end is equipped with portion 111 of bending, bend portion 111 with spacing post 802 fixed connection, volute spiral spring 11's inner fixedly connected with rolling disc 10, rolling disc 10 fixed mounting be in on the mounting bracket 70, rolling disc 10 with the rear portion of aircraft nose shell 80 rotates to be connected. The scroll spring 11 can support the machine head shell 80 to a certain extent, so that the machine head shell 80 can be stopped at will within a certain angle range; the volute spiral spring can also reduce the load of the alternating current motor 40, and the service life of the fan swing head mechanism is prolonged.

Referring to fig. 7, a fan includes a fan oscillating mechanism.

The motor comprises a motor shell 50, a motor cover 60, a mounting rack 70, a machine head shell 80, blades 13, a protective cover 14, a base 15 and a stand column 16;

the motor is fixedly arranged on the rear side of the motor cover 60, the motor cover 60 is fixedly connected with the motor shell 50, an installation cavity is formed in the motor shell 50, the first driving wheel 1 and the second driving wheel 20 are arranged in the installation cavity, the first driving wheel 1, the second driving wheel 20 and the third driving wheel 30 are rotatably connected with the motor shell 50, and the front part of the third driving wheel 30 protrudes out of the front side of the motor shell;

the motor casing 50 and the motor cover 60 are both arranged in the nose casing 80, the motor casing 50 is fixedly mounted on the nose casing 80, an avoidance through hole 801 is formed in the nose casing 80, and the front part of the third transmission wheel 30 is rotatably mounted in the avoidance through hole 801;

the mounting rack 70 is fixedly connected with the front part of the third driving wheel 30;

the protective cover 14 is fixedly installed on the nose casing 80, the blades 13 are arranged in the protective cover 14, the upright post 16 is fixedly connected with the bottom of the mounting rack 70, and the upright post 16 is fixedly installed at the center of the top of the base 15.

The fan can shake the head through the head shaking mechanism, and can shake the head up and down or left and right through changing the setting direction of the head shaking mechanism.

The above is only the preferred embodiment of the present invention, not limiting the patent scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct or indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. A fan oscillating mechanism is characterized by comprising:

the alternating current motor, a first transmission wheel, a second transmission wheel and a third transmission wheel;

2. A moving head mechanism for a fan according to claim 1, wherein:

the alternating current motor is a synchronous motor.

3. A moving head mechanism for a fan according to claim 1, wherein:

the third driving wheel comprises a third gear and thickened teeth, the thickened teeth are arranged at the front part of the third gear, and the number of the thickened teeth is two;

4. A moving head mechanism for a fan according to claim 3, wherein:

two be equipped with one between the thickened tooth third gear's tooth's socket, adjacent a teeth of a cogwheel and a tooth's socket all with one in the third gear thickened tooth meets.

5. A moving head mechanism for a fan according to claim 1, wherein:

the motor cover is arranged on the motor shell;

6. A moving head mechanism of a fan according to claim 5, wherein:

still include volute spiral spring, be equipped with spacing post in the aircraft nose shell, volute spiral spring's outer end is equipped with the portion of bending, state the portion of bending with spacing post fixed connection, volute spiral spring's the inner is connected with the rolling disc, rolling disc fixed mounting is in on the mounting bracket, the rolling disc with the rear portion of aircraft nose shell is rotated and is connected.

7. A fan, characterized by:

comprising a fan oscillating mechanism according to any one of claims 1-6.

8. A fan as claimed in claim 7, wherein:

the motor comprises a motor shell, a motor cover, a mounting frame, a machine head shell, blades, a protective cover, a base and an upright post;