CN114135508A - Head shaking device and household appliance - Google Patents

Abstract

The invention discloses an oscillating device which comprises a support and a base assembly, wherein a driving piece is fixedly connected to the support and is connected with a rotating shaft, a connecting plate is arranged on the rotating shaft, and the connecting plate is fixed to the base assembly so that the driving piece drives the rotating shaft to rotate relative to the connecting plate, and therefore the support rotates relative to the base assembly. The invention also discloses a household appliance which comprises the head shaking device. The head shaking device and the household appliance only adopt two main moving parts to realize the left and right shaking structure of the fan, and have the advantages of simple assembly and stable transmission. The design adopts the mode of having alternating current four-bar drive and direct current direct drive concurrently for realize equal reciprocal oscillating motion with the product under the different power supply circumstances, reduce development cost. And a universal chassis structure and a wiring mode are designed along with the structure.

Description

Head shaking device and household appliance

Technical Field

The invention relates to the field of electric appliances, in particular to a head shaking device and a household electric appliance provided with the head shaking device.

Background

Many household appliances include an oscillating device, which is a living appliance for taking a cold from wind in hot days, and is a device for generating airflow by electric drive, and blades arranged in the oscillating device are electrified and then rotated into natural wind to achieve the effect of cooling. The blowing direction of the oscillating device can be adjusted by rotating the fan head.

In the current market, the left-right shaking head has an indispensable function for fan products, the shaking head mode of the fan comprises a connecting rod driving mode, a gear rack driving mode and a direct driving mode, the driving modes respectively have advantages and disadvantages, and the alternating current mode is low in cost but poor in driving stability. The gear driving mode has stable transmission, but high cost, higher requirements on assembly and process, and the direct driving mode has simple assembly mode but higher required motor torque. Along with the market demand of fan products, different specifications are generally required to be provided for the same product so as to meet the demand of different prices in the market, and the compatible oscillating structure can effectively reduce the development cost of the product.

Disclosure of Invention

In order to solve the technical problems that the oscillating device in the background art does not have an alternating current four-bar driving mode and a direct current direct driving mode and is high in development cost, the oscillating device and the household appliance provided by the invention have the advantages that the alternating current four-bar driving mode and the direct current direct driving mode are adopted in design, the same reciprocating oscillating motion is realized under different power supply conditions of the same product, and the development cost is reduced.

In order to achieve the purpose, the specific technical scheme of the head shaking device and the household appliance is as follows:

the utility model provides a device of shaking head, includes support and base subassembly, fixedly connected with driving piece on the support, and driving piece and rotation axis link to each other, are provided with the connecting plate on the rotation axis, and the connecting plate is fixed on the base subassembly to make the relative connecting plate of driving piece drive rotation axis rotate, thereby realize that the relative base subassembly of support rotates.

Further, the base assembly comprises a base plate, a base plate is fixedly connected with the base plate, a support is fixedly connected with the base plate, and the base plate is fixedly connected with the connecting plate, so that the connecting plate is fixed on the base assembly.

Further, the support is provided with an installation part, the rotating shaft is provided with a matching part, and the installation part and the matching part are clamped to enable the support to be fixedly connected with the rotating shaft.

Further, a fixing hole is formed in the support, a first mounting hole is formed in the rotating shaft, and the support, the driving piece and the rotating shaft are fixedly connected through screws.

Furthermore, a sliding rail is arranged on the rotating shaft, a sliding groove is arranged on the connecting plate, and the sliding rail and the sliding groove slide relatively to enable the rotating shaft and the connecting plate to rotate relatively.

Further, rotation axis and connecting plate set up with one heart, are provided with the rotation hole on the rotation axis, are provided with the axis of rotation on the connecting plate, and axis of rotation and rotation hole peg graft, driving piece can drive the rotation axis and rotate to make the rotation axis along the circumferential motion of connecting plate.

Furthermore, a limiting rib is arranged on the rotating shaft, a limiting boss is arranged on the connecting plate, and the limiting boss is matched with the limiting rib to limit the rotating positions of the rotating shaft and the connecting plate.

Furthermore, a positioning hole is formed in the connecting plate, a matching hole is formed in the chassis, a screw hole is formed in the bottom plate, the screw hole, the positioning hole and the matching hole are concentrically positioned, and the bottom plate, the connecting plate and the chassis are fixedly connected through screws.

Furthermore, the driving piece is electrically connected with a wire, a first wiring groove is formed in the support, a second wiring groove is formed in the rotating shaft, a third wiring groove and a fourth wiring groove are formed in the connecting plate, a buckle is arranged on the chassis, the wire is sequentially arranged along the first wiring groove, the second wiring groove, the third wiring groove and the fourth wiring groove, and the tail end of the wire is fixed with the buckle in a clamping mode, so that the arrangement stroke of the wire is the shortest.

Furthermore, the driving piece is an alternating current motor which comprises a first motor body, the first motor body is connected with a first main shaft, the first main shaft is connected with the rotating structure, the rotating structure is connected with a connecting shaft arranged on the connecting piece, and the first motor body drives the first main shaft to rotate so that the rotating shaft rotates relative to the connecting plate.

Furthermore, the rotating structure comprises a crank and a connecting rod, the crank is connected with the first spindle, the connecting rod is connected with the connecting shaft, the first spindle drives the connecting plate to rotate, and the connecting rod is connected with the crank so that the connecting rod drives the connecting plate to rotate, and therefore the rotating shaft can rotate relative to the connecting plate.

Further, the crank is provided with an installation shaft, the installation shaft and the connecting rod are provided with shaft holes which are matched, one side of the installation shaft is provided with a second shaft hole, and the second shaft hole and the first main shaft are fixedly connected in an inserting mode.

Further, the driving piece is a direct current motor, the direct current motor comprises a second motor body and a second main shaft, the motor body is fixedly connected with the support, the second main shaft is fixedly connected with the first shaft hole formed in the rotating shaft in an inserting mode, and the motor body drives the second main shaft to rotate so that the rotating shaft rotates relative to the connecting plate.

The invention also discloses a household appliance which comprises the head shaking device.

Further, the household appliance is a fan.

The head shaking device and the household appliance only adopt two main moving parts to realize the left and right shaking structure of the fan, and have the advantages of simple assembly and stable transmission. The design adopts the mode of having alternating current four-bar drive concurrently and direct current direct drive for with realizing equal reciprocal oscillating motion under the different power supply circumstances of product (the drive mode is different), reduce development cost. And a universal chassis structure and a wiring mode are designed along with the structure.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a sectional view of an AC motor assembly for an oscillating device according to the present invention;

fig. 2 is a schematic view of an exploded structure of a dc motor assembly of the oscillating device of the present invention;

fig. 3 is a schematic view showing the structure of a holder of the oscillating device of the present invention;

FIG. 4 is a first schematic view showing the structure of the rotating shaft of the oscillating device of the present invention;

FIG. 5 is a second schematic structural view of the rotating shaft of the oscillating device of the present invention;

FIG. 6 is a third schematic view showing the structure of the rotating shaft of the oscillating device of the present invention;

FIG. 7 is a first schematic view showing the structure of a connecting plate of the oscillating device of the present invention;

FIG. 8 is a second schematic view showing the structure of the connecting plate of the oscillating device of the present invention;

fig. 9 is a schematic view showing a structure of a link of the oscillating device of the present invention;

fig. 10 is a schematic view showing the structure of a crank of the oscillating device of the present invention;

fig. 11 is a schematic view showing the structure of the base plate of the oscillating device of the present invention;

FIG. 12 is a schematic view showing the structure of a base plate of the oscillating device of the present invention;

fig. 13 is a schematic view showing the structure of an ac motor of the oscillating apparatus according to the present invention;

fig. 14 is a schematic view showing a structure of a dc motor of the oscillating apparatus according to the present invention.

1. A base plate; 11. screw holes; 2. a connecting plate; 21. positioning holes; 22. a first shaft hole; 23. a rotating shaft; 24. a limiting boss; 25. a connecting shaft; 26. a chute; 27. a third wiring duct; 28. a fourth wiring slot; 3. a connecting rod; 31. a shaft hole; 4. a crank; 41. installing a shaft; 42. a second shaft hole; 5. a rotating shaft; 51. rotating the hole; 52. a slide rail; 53. a first mounting hole; 54. a second wiring duct; 55. limiting ribs; 56. a fitting portion; 6. a chassis; 61. a mating hole; 62. buckling; 7. an alternating current motor; 71. a second mounting hole; 72. a first main shaft; 8. a support; 81. a fixing hole; 82. a first wiring duct; 83. an installation part; 9. a wire; 10. a direct current motor; 101. a second main shaft; 102. and a third mounting hole.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, which are merely for convenience of description and simplicity of description, and do not indicate or imply that the hand sanitizer or the components that are referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Fig. 1 to 14 illustrate a head swing device and a household appliance provided by the present invention.

In the prior art, the driving head shaking device is divided into a direct current motor 10 and an alternating current motor 7 for realizing the head shaking function. The alternating current motor 7 can only rotate in one direction and cannot be controlled, so that the alternating current motor 7 can only swing in a reciprocating manner by using the four-bar linkage 3 mechanism. The prior art can only realize the four-bar linkage 3. The direct current motor 10 can be controlled by the main board, and can be reversed by itself to realize reciprocating shaking.

The invention provides a head shaking device which can be applied to any household electrical appliance with a head shaking function.

The oscillating device provided by the embodiment of the invention is mainly applied to fans, the existing fan is mainly driven by the direct current motor 10 or the alternating current motor 7, however, in specific production practice, two fans with different structures are usually required to be designed according to the two fans driven by the alternating current motor 7 or the direct current motor 10, and the research and development cost and the production cost are high. The invention aims to provide a head shaking device which can have two modes of direct driving of an alternating current motor 7 and direct driving of a direct current motor 10, and can switch a head shaking driving mode along with a power supply mode of a complete machine in the same structural space, so that the product development cost is reduced.

As shown in fig. 1 to 14, an oscillating device according to some embodiments of the present invention includes a bracket 8 and a base assembly, wherein a driving member is fixedly connected to the bracket 8, the driving member is connected to a rotating shaft 5, a connecting plate 2 is disposed on the rotating shaft 5, and the connecting plate 2 is fixed to the base assembly, so that the driving member drives the rotating shaft 5 to rotate relative to the connecting plate 2, thereby rotating the bracket 8 relative to the base assembly. According to the oscillating device provided by the invention, the main structure of the oscillating device is not changed by changing the driving part and the corresponding connection relation, so that the universal design of the oscillating device can be realized, and the oscillating device can be respectively used by the alternating current motor 7 and the direct current motor 10.

Further, the base component comprises a base plate 6, a base plate 1 is fixedly connected to the base plate 6, a support 8 is fixedly connected to the base plate 6, and the base plate 1 is fixedly connected to the connecting plate 2, so that the connecting plate 2 is fixed to the base component. The bracket 8 is provided with a mounting part 83, the rotating shaft 5 is provided with a matching part 56, and the mounting part 83 is clamped with the matching part 56 so as to fixedly connect the bracket 8 and the rotating shaft 5. The bracket 8 is provided with a fixing hole 81, the rotating shaft 5 is provided with a first mounting hole 53, and the bracket 8, the driving member and the rotating shaft 5 are fixedly connected through screws.

Specifically, the rotating shaft 5 is provided with a slide rail 52, the connecting plate 2 is provided with a slide groove 26, and the slide rail 52 and the slide groove 26 slide relatively, so that the rotating shaft 5 and the connecting plate 2 rotate relatively. The rotating shaft 5 and the connecting plate 2 are concentrically arranged, a rotating hole 51 is formed in the rotating shaft 5, a rotating shaft 23 is arranged on the connecting plate 2, the rotating shaft 23 is connected with the rotating hole 51 in an inserting mode, and the driving piece can drive the rotating shaft 5 to rotate so that the rotating shaft 5 can move along the circumferential direction of the connecting plate 2.

Further, the rotating shaft 5 is provided with a limiting rib 55, the connecting plate 2 is provided with a limiting boss 24, and the limiting boss 24 is matched with the limiting rib 55 to limit the rotating positions of the rotating shaft 5 and the connecting plate 2.

Furthermore, a positioning hole 21 is formed in the connecting plate 2, a matching hole 61 is formed in the chassis 6, a screw hole 11 is formed in the bottom plate 1, the screw hole 11, the positioning hole 21 and the matching hole 61 are concentrically positioned, and the bottom plate 1, the connecting plate 2 and the chassis 6 are fixedly connected through screws.

Some embodiments of the invention provide a moving head device in which the driving member is electrically connected to the wire 9, which is also particularly important for the routing design of the wire 9 in the moving head device. The driving piece is electrically connected with a wire 9, a first wiring groove 82 is arranged on the support 8, a second wiring groove 54 is arranged on the rotating shaft 5, a third wiring groove 27 and a fourth wiring groove 28 are arranged on the connecting plate 2, a buckle 62 is arranged on the chassis 6, the wire 9 is sequentially arranged along the first wiring groove 82, the second wiring groove 54, the third wiring groove 27 and the fourth wiring groove 28, and the tail end of the wire 9 is fixedly clamped with the buckle 62, so that the arrangement stroke of the wire 9 is the shortest.

The structure and connection relationship provided by the above embodiments are the main connection structure in the head shaking device. The driving member will be described as a dc motor 10 or an ac motor 7, respectively.

The driving piece is an alternating current motor 7, the alternating current motor 7 comprises a first motor body, the first motor body is connected with a first main shaft 72, the first main shaft 72 is connected with a rotating structure, the rotating structure is connected with a connecting shaft 25 arranged on the connecting piece, and the first motor body drives the first main shaft 72 to rotate so that the rotating shaft 5 rotates relative to the connecting plate 2.

Further, the rotating structure comprises a crank 4 and a connecting rod 3, the crank 4 is connected with a first main shaft 72, the connecting rod 3 is connected with a connecting shaft 25, the first main shaft 72 drives the connecting rod to rotate, and the connecting rod 3 is connected with the crank 4 so that the connecting rod 3 drives the connecting plate 2 to rotate, and therefore the rotating shaft 5 can rotate relative to the connecting plate 2. The crank 4 is provided with a mounting shaft 41, the mounting shaft 41 is matched with the shaft hole 31 arranged on the connecting rod 3, one side of the mounting shaft 41 is provided with a second shaft hole 42, and the second shaft hole 42 is fixedly inserted with the first main shaft 72.

Further, the driving part is a direct current motor 10, the direct current motor 10 includes a second motor body and a second spindle 101, the motor body is fixedly connected with the support 8, the second spindle 101 is fixedly inserted into a first spindle hole 22 formed in the rotating shaft 23, and the motor body drives the second spindle 101 to rotate, so that the rotating shaft 5 rotates relative to the connecting plate 2.

The dc motor 10 and the ac motor 7 are adapted by different connection structures, the dc motor 10 (direct drive scheme): the motor can be directly driven on the connecting plate 2 to use the components of the connecting plate 2, the rotating shaft 5, the chassis 6, the bottom plate 1 and the like. Ac motor 7 (four bar 3 drive scheme): the alternating current motor 7 can be used for all direct current parts, but two parts, namely the crank 4 and the connecting rod 3, are added, so that the production cost is reduced to a certain extent. Under the conditions that the size of the same product is unchanged, the reciprocating oscillating motion mode is unchanged and the like, a direct current mode (direct drive) and an alternating current mode (four-bar 3 drive) can be adaptively selected.

The two driving modes of the dc motor 10 and the ac motor 7 will be described in detail below.

Assembly under the AC power supply mode: first, the chassis 6 and the bracket 8 are concentrically assembled, the second mounting hole 71 of the alternating current motor 7 is mounted at a position corresponding to the fixing hole 81 of the bracket 8, the mounting part 83 of the bracket 8 of the rotating shaft 5 is mounted with the mounting part 83 of the bracket 8, the first mounting hole 53 of the rotating shaft 5 is aligned with the bracket 8 and the second mounting hole 71 of the alternating current motor 7, and screws are driven to fix the bracket 8 and the alternating current motor 7. At this time, the bracket 8, the upper fan head, the rotating shaft 5 and the alternating current motor 7 are fixed without relative displacement. And then the D-shaped shaft hole 31 shown by the crank 4 is aligned with the D-shaped main shaft shown by the alternating current motor 7 and is concentrically assembled. Then the rotating shaft 23 of the connecting plate 2 and the rotating hole 51 of the rotating shaft 5 are concentrically assembled to perform circumferential motion friction, and the sliding rail 52 of the rotating shaft 5 is matched with the sliding groove 26 of the connecting plate 2 to perform axial motion friction. And the positioning hole 21 shown in the connecting plate 2 is positioned concentrically with the fitting hole 61 shown in the bottom plate 6. And one end of the shaft hole 31 shown by the connecting rod 3 is concentrically assembled with the mounting shaft 41 shown by the crank 4, and the other end of the shaft hole is concentrically assembled with the connecting shaft 25 of the connecting plate 2. Finally, wiring arrangement is completed, finally, the screw hole 11 shown in the bottom plate 1 is concentrically positioned with the matching hole 61 of the chassis 6 and the positioning hole 21 on the connecting plate 2, and screws are driven to fix the bottom plate 1, the chassis 6 and the connecting plate 2, and the bottom plate 1, the chassis 6 and the connecting plate 2 are fixed without relative movement.

The working principle of the alternating current motor 7 is as follows: alternating current motor 7 is fixed on support 8 (aircraft nose), and motor drive crank 4, connecting rod 3 are fixed in base (chassis 6) and drive support 8 through four-bar linkage 3 and use rotation axis 5 and connecting plate 2 cooperation department axis of rotation 23, rotation hole 51 centre of a circle carry out reciprocating oscillating motion as centre of rotation.

The chassis 6 and the bracket 8 are assembled together, the third mounting hole 102 shown in the direct current motor 10 and the fixing hole 81 on the bracket 8 are positioned concentrically, the matching part 56 shown in the rotating shaft 5 and the mounting part 83 of the bracket 8 are mounted, the first mounting hole 53 on the rotating shaft 5 is aligned with the bracket 8 and the third mounting hole 102 on the direct current motor 10, and screws are driven into the third mounting hole 102 for fixing. At this time, the bracket 8 and the upper fan head (not shown in the scheme), the rotating shaft 5 and the alternating current motor 7 are fixed without relative displacement. And then the double-D shaft shown by the direct current motor 10 is concentrically matched with the double-D shaft shown by the connecting plate 2, the rotating shaft 23 of the connecting plate 2 is concentrically assembled with the rotating hole 51 shown by the rotating shaft 5 to perform circumferential motion friction, and the sliding rail 52 of the rotating shaft 5 is matched with the sliding groove 26 of the connecting plate 2 to perform axial motion friction. The subsequent assembly is the same as the alternating current power supply mode.

The working principle of the direct current motor 10 is as follows: alternating current motor 7 is fixed on support 8 (aircraft nose), and motor spindle drive connecting plate 2, and further, drive support 8 uses rotation axis 5 and connecting plate 2 cooperation department axis of rotation 23, rotation hole 51 centre of a circle carry out reciprocating oscillating motion as centre of rotation.

The invention also discloses a household appliance which comprises the head shaking device.

The oscillating device only adopts two main moving parts to realize the left-right oscillating structure of the fan, and has simple assembly and stable transmission. The design adopts the driving mode of having alternating current four-bar linkage 3 concurrently and direct current direct drive mode for with realizing equal reciprocal oscillating motion under the different power supply condition of product (the driving mode is different), reduce development cost. And a universal chassis 6 structure and a wiring mode are designed according to the structure.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (15)

1. The utility model provides a device of shaking head, its characterized in that includes support and base subassembly, fixedly connected with driving piece on the support, driving piece and rotation axis link to each other, are provided with the connecting plate on the rotation axis, and the connecting plate is fixed on the base subassembly to make the relative connecting plate of driving piece drive rotation axis rotate, thereby realize that the relative base subassembly of support rotates.

2. An oscillating device according to claim 1, characterized in that the base unit comprises a base plate, to which a base plate is fixedly connected, to which the holder is fixedly connected, and which base plate is fixedly connected to the connecting plate, so that the connecting plate is fixed to the base unit.

3. An oscillating device according to claim 1, characterized in that the holder is provided with a mounting portion and the axis of rotation is provided with an engaging portion, the mounting portion and the engaging portion being adapted to be engaged to fixedly connect the holder to the axis of rotation.

4. An oscillating device according to claim 1, characterized in that the holder is provided with fixing holes and the rotating shaft is provided with first mounting holes, the holder, the driving member and the rotating shaft being fixedly connected by means of screws.

5. An oscillating device according to claim 1, characterized in that the rotary shaft is provided with a slide rail, the connecting plate is provided with a slide groove, and the slide rail and the slide groove slide relative to each other to allow the rotary shaft and the connecting plate to rotate relative to each other.

6. An oscillating device according to claim 5, characterized in that the rotary shaft and the connecting plate are concentrically arranged, the rotary shaft is provided with a rotary hole, the connecting plate is provided with a rotary shaft, the rotary shaft is inserted into the rotary hole, and the driving member is adapted to drive the rotary shaft to rotate so that the rotary shaft moves in the circumferential direction of the connecting plate.

7. An oscillating device according to claim 1, characterized in that the rotating shaft is provided with a limiting rib, the connecting plate is provided with a limiting boss, and the limiting boss and the limiting rib cooperate to limit the rotational position of the rotating shaft and the connecting plate.

8. An oscillating device according to claim 2, characterized in that the connecting plate is provided with positioning holes, the base plate is provided with mating holes, the base plate is provided with screw holes, the positioning holes and the mating holes are concentrically positioned, and the base plate, the connecting plate and the base plate are fixedly connected by screws.

9. An oscillating device according to claim 2, characterized in that the driving member is electrically connected to a wire, the frame is provided with a first wiring groove, the rotating shaft is provided with a second wiring groove, the connecting plate is provided with a third wiring groove and a fourth wiring groove, the base plate is provided with a buckle, the wire is arranged along the first wiring groove, the second wiring groove, the third wiring groove and the fourth wiring groove in sequence, and the end of the wire is fixed to the buckle in a snap-fit manner, so that the wire arrangement stroke is minimized.

10. An oscillating device according to any one of claims 1-9, characterized in that the driving member is an ac motor, the ac motor comprising a first motor body, the first motor body being connected to a first spindle, the first spindle being connected to the rotary structure, the rotary structure being connected to a connection shaft provided on the connection member, the first motor body driving the first spindle to rotate so that the rotary shaft rotates relative to the connection plate.

11. An oscillating device according to claim 10, characterized in that the rotary structure comprises a crank and a connecting rod, the crank being connected to a first spindle, the connecting rod being connected to the connecting shaft, the first spindle being driven in rotation, the connecting rod being connected to the crank so that the connecting rod drives the connecting plate in rotation, whereby rotation of the rotary shaft relative to the connecting plate is achieved.

12. An oscillating device according to claim 11, characterized in that the crank is provided with a mounting shaft, the mounting shaft and the connecting rod are provided with shaft holes for cooperation, one side of the mounting shaft is provided with a second shaft hole, and the second shaft hole is fixedly connected with the first main shaft in an inserting manner.

13. An oscillating device according to any one of claims 1-9, characterized in that the driving member is a dc motor, the dc motor comprising a second motor body and a second spindle, the motor body being fixedly connected to the frame, the second spindle being fixedly connected to the first spindle opening provided in the rotary shaft, the motor body driving the second spindle to rotate so that the rotary shaft rotates relative to the connecting plate.

14. A domestic appliance, characterized in that the domestic appliance comprises a moving head device according to any one of claims 1-13.

15. The household appliance according to claim 14, wherein the household appliance is a fan.

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