Shaking device and household appliance

Abstract

The application discloses a head-shaking device, which comprises a shell and a support, the shell is movably arranged on the support, the support is provided with a first matching part and a second matching part, the shell is provided with a rotating assembly, the rotating assembly is connected with a driving part, the rotating assembly can drive the driving part to rotate, so that the driving part is alternately matched with the first matching part and the second matching part on the support to realize the rotation of the shell relative to the support. The application further discloses a household appliance. The head-shaking device has the advantages that the sector bevel gear is alternately meshed with the arc-shaped bevel gear arranged on the support in transmission, the sector bevel gear realizes the one-way driving reciprocating motion, the stability of the head-shaking device is improved, and the user experience is improved. The household appliance has the advantages that one main motor can drive the fan blade and realize the left and right head-shaking function, the number of parts is reduced, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of a head-shaking device, and particularly relates to a head-shaking device and a household appliance. BACKGROUND

[0002] Many household appliances contain a head-shaking device, which is a life electric appliance for taking coolness in hot days, is a device for generating airflow by electric driving, and is configured with a fan blade that is electrified to rotate to become natural wind to achieve the effect of taking coolness. The fan head of the head-shaking device can be rotated to adjust the blowing direction.

[0003] However, the existing head-shaking devices on the market generally adopt two driving modes of motor-driven tail tooth box type head-shaking or separate motor-driven head-shaking. Among them, the head-shaking device driven by the motor-driven tail tooth box type is mostly adopted by a connecting rod structure, and the connecting rod structure is driven by the motor to swing along the rotation center, so as to realize the left and right swinging of the head-shaking device. However, the connecting rod structure generally has a quick return motion, which causes the head-shaking device to be unstable during the swinging along the rotation center, resulting in poor user experience. SUMMARY

[0004] To solve the problem of unstable head-shaking of the head-shaking device during the head-shaking swinging, the purpose of the present application is to provide a head-shaking device to improve the stability of the head-shaking device swinging along the rotation center and improve the user experience.

[0005] The purpose of the present application also provides a household appliance.

[0006] To achieve the above purpose, the specific technical solutions of the head-shaking device and the household appliance of the present application are as follows:

[0007] The present application discloses a head-shaking device, which comprises a shell and a support, the shell is movably arranged on the support, the support is provided with a first matching part and a second matching part, the shell is provided with a rotation assembly, the rotation assembly is connected with a driving part, the rotation assembly can drive the driving part to rotate, so that the driving part alternately matches with the first matching part and the second matching part on the support to realize the rotation of the shell relative to the support.

[0008] As a further optimization of the present application, the first matching part and the second matching part are oppositely arranged, and the driving part is arranged between the first matching part and the second matching part, so that the driving part alternately rotates with the first matching part and the second matching part.

[0009] As a further optimization of the present application, the first matching part and the second matching part are arranged as a first rack and a second rack, and the driving part is provided with a tooth, and the driving part rotates to make the tooth alternately engage with the first rack and the second rack.

[0010] As a further optimization of the present invention, both the first rack and the second rack are arc-shaped bevel racks, and the two arc-shaped bevel racks are set with equal radii around the center of the rotary assembly.

[0011] As a further optimization of the present invention, the driving component is a sector bevel gear.

[0012] As a further optimization of the present invention, the radius of the arc-shaped bevel rack centered on the rotating assembly is r1, the radius of the sector bevel gear is r2, the central angle of the sector bevel gear is β, and the rotation angle of the housing relative to the support is α, where α = (β*r2) / r1.

[0013] As a further optimization of the present invention, the central angle of the sector bevel gear is less than or equal to 120 degrees.

[0014] As a further optimization of the present invention, the top end of the bracket is fixedly connected to the first mating part or the second mating part, and the bottom end of the bracket is fixedly connected to the second mating part or the first mating part, so that the housing and the bracket can rotate relative to each other.

[0015] As a further optimization of the present invention, a sliding groove is provided on the housing, and a slider is provided on the bracket at a position corresponding to the sliding groove, so that the housing and the bracket can slide relative to each other.

[0016] As a further optimization of the present invention, the rotary assembly includes a rotary shaft, a motor connected to the rotary shaft, a reduction gear connected to the motor, and a drive component connected to the reduction gear, so that the rotation of the motor is reduced in speed by the reduction gear and then transmitted to the drive component.

[0017] As a further optimization of the present invention, a connector is sleeved on the outside of the rotary shaft, and at least two mating holes are provided on the outer wall of the connector. The at least two mating holes are arranged along the circumference of the rotary shaft, and a screw is passed through the mating hole to make the screw abut against the outer wall of the rotary shaft.

[0018] As a further optimization of the present invention, the motor is connected to the main shaft, the main shaft is connected to the fan blade, and the motor drives the rotary shaft and the fan blade to rotate simultaneously.

[0019] As a further optimization of the present invention, the deceleration structure includes a gearbox, on which a first transmission component is disposed, a second transmission component is rotatably connected to the first transmission component, a third transmission component is rotatably connected to the second transmission component, and the third transmission component and the driving component rotate coaxially.

[0020] As a further optimization of the present invention, the first transmission component includes a worm gear, which is fixed on the gearbox. The main shaft on the motor drives the worm gear to rotate, and the worm gear meshes with the worm wheel to rotate.

[0021] As a further optimization of the present invention, the second transmission component includes a first cylindrical gear and a second cylindrical gear that mesh with each other, with the first cylindrical gear and the worm gear rotating coaxially.

[0022] As a further optimization of the present invention, an anti-rotation structure is provided on the outer wall of the first cylindrical gear so that the outer wall of the first cylindrical gear abuts against or separates from the worm gear.

[0023] As a further optimization of the present invention, the third transmission component includes a first bevel gear and a second bevel gear that mesh with each other, the first bevel gear and the second cylindrical gear are coaxially linked, and the first bevel gear and the second bevel gear are arranged perpendicular to each other.

[0024] As a further optimization of the present invention, a clutch assembly is provided on the motor mounting base. Rotating the clutch assembly causes the worm gear and worm to separate or engage, thereby controlling the relative swinging or stationary movement of the housing and the support.

[0025] The present invention also discloses a household appliance, including a base, wherein the base is connected to the oscillating device as described above.

[0026] As a further optimization of the present invention, the base includes a support arm, the support arm and the base plate are fixedly connected, the base plate and the bottom wall of the housing are provided with a gap, the top of the housing is connected to the rotating assembly, the bracket and the support arm are fixedly connected, and the housing is suspended on the support arm so that the housing rotates relative to the bracket.

[0027] As a further optimization of the present invention, an assembly groove is provided at the top of the support arm, the assembly groove and the rotary component are engaged, an assembly hole is provided on the support arm, and a fixing block is provided on the bracket, and the support arm and the fixing block are fixedly connected by screws.

[0028] The present invention has the following advantages over the prior art:

[0029] 1) The swaying device of the present invention uses a sector bevel gear and an arc bevel rack arranged opposite to it on the bracket for alternating meshing transmission. The sector bevel gear realizes unidirectional reciprocating motion, which improves the stability of the swaying device and enhances the user experience.

[0030] 2) The household appliance described in this invention can drive the fan blades and oscillate left and right with a single main motor, thereby reducing the number of parts and lowering production costs. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the household appliance according to Embodiment 1 of the present invention;

[0032] Figure 2 This is an exploded view of Embodiment 1 of the household appliance of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the head-shaking device of the present invention;

[0034] Figure 4This is a schematic diagram of the overall structure of the support frame in the head-shaking device of the present invention. Figure 1 ;

[0035] Figure 5 This is a schematic diagram of the overall structure of the support frame in the head-shaking device of the present invention. Figure 2 ;

[0036] Figure 6 This is a schematic diagram of the rotating component in the swaying device of the present invention;

[0037] Figure 7 This is a schematic diagram of the gearbox in the oscillating device of the present invention;

[0038] Figure 8 This is a schematic diagram of the overall structure of the connector in the head-shaking device of the present invention. Figure 1 ;

[0039] Figure 9 This is a schematic diagram of the overall structure of the connector in the head-shaking device of the present invention. Figure 2 ;

[0040] Figure 10 This is a schematic diagram of the worm gear in the oscillating device of the present invention;

[0041] Figure 11 This is a schematic diagram of the structure of the first gear in the swaying device of the present invention;

[0042] Figure 12 This is a schematic diagram of the structure of the second gear in the head-shaking device of the present invention;

[0043] Figure 13 This is a schematic diagram of the structure of the third gear in the head-shaking device of the present invention;

[0044] Figure 14 This is a schematic diagram of the structure of the fourth gear in the head-shaking device of the present invention;

[0045] Figure 15 This is a schematic diagram of the chassis in the swaying device of the present invention.

[0046] Explanation of markings in the diagram:

[0047] 1. Rotary assembly; 101. Rotary shaft; 102. Main shaft; 103. Worm gear; 2. Worm wheel; 21. First mounting hole; 3. First cylindrical gear; 4. Second cylindrical gear; 5. Gearbox; 51. First shaft hole; 52. Second shaft hole; 53. Third shaft hole; 54. Fixed shaft; 6. First bevel gear; 61. Second mounting hole; 7. Second bevel gear; 71. Third mounting hole; 8. First rack; 9. Drive component; 10. 1001. Bracket; 1002. Fixing block; 1003. Mounting position; 14. Net cover; 15. First housing; 16. Fan blade; 17. Second housing; 18. Wire; 19. Connector; 1001. Protrusion; 1002. Fourth shaft hole; 1003. Fixing hole; 1004. Base; 15. Assembly hole; 16. Assembly groove; 17. Wiring groove; 18. Knob assembly; 19. Knob body; 1005. Rotating component. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0049] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0050] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0051] The following is a reference to the appendix. Figure 1 To be continued Figure 15 The present invention describes a head-shaking device and a household appliance.

[0052] like Figures 1 to 3As shown in the figure, an embodiment of the present invention provides a swaying device, including a support 10, a housing, a rotary assembly 1, and a driving member 9. The housing is movably mounted on the support 10, and the support 10 is provided with a first mating part and a second mating part. The rotary assembly 1 drives the rotation of the driving member 9, so that after the driving member 9 rotates relative to the first mating part, the driving member 9 rotates relative to the second mating part in the same direction. The driving member 9 alternately engages with the first and second mating parts, thereby realizing the rotation of the housing relative to the support 10. Specifically, when the driving member 9 rotates clockwise and rotates relative to the second mating part, the housing rotates clockwise along the axis of the rotary assembly 1; when the driving member 9 rotates clockwise and rotates relative to the first mating part, the housing rotates counterclockwise along the axis of the rotary assembly 1, thereby realizing the reciprocating motion of the driving member 9 in one direction.

[0053] Furthermore, the first and second mating parts on the bracket 10 are arranged opposite to each other, with the first and second mating parts located at the top and bottom ends of the bracket 10, thereby enabling the drive member 9 to rotate in the horizontal direction. Of course, the first and second mating parts can also be positioned on opposite sides of the bracket 10 to enable the drive member 9 to rotate in the vertical direction. Here, only the horizontal rotation of the drive member 9 is described as a preferred embodiment; other embodiments are also within the scope of this invention and will not be elaborated upon further.

[0054] As some embodiments provided by the present invention, the first mating part and the second mating part can be an integrally formed structure or can be set as two relatively independent structures. Here, the first mating part and the second mating part are the driving member 9 and the part of the first mating part that contacts the second mating part, and are not limited to the first mating part and the second mating part being two independent structures. Of course, here only the first mating part and the second mating part being a relatively independent structure is described as a preferred embodiment.

[0055] Furthermore, separation portions are provided on opposite sides between the first mating portion and the second mating portion, forming the motion track of the driving member 9 in the order of the first mating portion, the first separation portion, the second mating portion, and the second separation portion. Specifically, the first separation portion and the second separation portion have the same structure. The driving member 9 is provided with a free-spinning portion, which is adapted to the separation portion to allow the driving member 9 to free-spin, thereby separating the driving member 9 from the first mating portion and mating with the second mating portion, or separating the driving member 9 from the second mating portion and mating with the first mating portion. The driving member 9 moves from the starting point of the first mating portion to the ending point of the first mating portion. The free-spinning portion and the separation portion are adapted, and after the driving member 9 rotates, it moves from the starting point of the second mating portion to the ending point of the second mating portion. The starting and ending points of the first and second mating portions are set in different directions, and the starting point of the first mating portion and the ending point of the second mating portion are set on the same side. This cycle repeats, so that after the driving member 9 moves with the first mating portion, it continues to move with the second mating portion. The driving member 9 moves cyclically along the motion track, causing the housing and the support 10 to rotate relative to each other.

[0056] As some embodiments provided by the present invention, the first mating part and the second mating part are rotating blocks, and the driving member 9 is a driving block that mates with the rotating block. The driving block and the rotating block generate friction to make the driving block rotate relative to the rotating block. Of course, it can be understood that the first mating part and the second mating part are configured as a first rack 8 and a second rack, and the driving member 9 is provided with teeth. The driving member 9 rotates to make the teeth alternately mesh with the first rack 8 and the second rack.

[0057] Preferably, both the first rack 8 and the second rack are arc-shaped bevel racks, and the two arc-shaped bevel racks are set with equal radii around the center of the rotating component 1. The driving component 9 is a sector bevel gear. By using a transmission method in which the sector bevel gear and the arc-shaped bevel rack mesh, the relative stability of the rotation of the housing and the bracket 10 is improved. This avoids the swaying instability caused by the linkage transmission during the reciprocating oscillation of the sector bevel gear, thereby improving the user experience.

[0058] Furthermore, the arc-shaped bevel racks at the upper and lower ends of the bracket 10 are symmetrically arranged. The lengths of the two arc-shaped bevel racks and the center radius of the arc-shaped bevel racks along the rotating assembly 1 are the same. The sector bevel gear rotates within the space formed by the first and second arc-shaped bevel racks, so that the drive component 9 and the housing rotate relative to each other. Specifically, the sector bevel gear meshes with the first arc-shaped bevel rack, moving from the starting point to the ending point of the first arc-shaped bevel rack. After the sector bevel gear rotates, the teeth of the sector bevel gear mesh with the starting point of the second arc-shaped bevel rack. After the sector bevel gear rotates from the starting point to the ending point of the second arc-shaped bevel gear, the teeth of the sector bevel gear mesh with the starting point of the first arc-shaped bevel rack. This forms an alternating meshing transmission of the sector bevel gear along the first and second arc-shaped bevel racks, so that the housing rotates smoothly relative to the bracket 10 during the alternating meshing process of the sector bevel gear with the first and second arc-shaped bevel racks, so that the swaying motion of the housing and the bracket 10 is relatively stable.

[0059] Furthermore, the radius of the arc-shaped bevel rack centered on the rotating assembly is r1, the radius of the sector bevel gear is r2, the central angle of the sector bevel gear is β, and the rotation angle of the housing relative to the support is α, where α = (β*r2) / r1. This rotation angle is calculated based on the ratio of the arc length of the sector bevel gear to the full arc length of the rack, ensuring a smooth transition during the alternation of the sector bevel gears and the meshing of the first and second arc-shaped bevel racks. After the end of the sector bevel gear meshes with the first arc-shaped bevel rack, the teeth of the sector bevel gear rotate to one end of the second arc-shaped bevel rack to continue meshing and transmission, avoiding the unstable swaying phenomenon caused by rapid return motion.

[0060] Preferably, the central angle of the sector bevel gear is no greater than 120 degrees. When the central angle of the sector bevel gear is set within the aforementioned range, the meshing process between the sector bevel gear and the first and second arc-shaped bevel racks can be relatively smooth. Of course, it is understood that the central angle of the sector bevel gear is not limited to this, and sector bevel gears with other angles can also be used. As some embodiments provided by the present invention, when the central angle of the sector bevel gear is 120 degrees, the meshing transmission between the sector bevel gear and the first and second arc-shaped bevel racks is the smoothest.

[0061] like Figure 4 and Figure 5 As shown, the bracket 10 provided in this embodiment of the invention is fixedly connected to the first mating part and the second mating part respectively. The first mating part and the second mating part are rotatably connected to the driving member 9 respectively, thereby realizing the rotatable connection between the bracket 10 and the driving member 9, so as to drive the housing to reciprocate and swing, thereby realizing the head-shaking function.

[0062] Furthermore, screw holes are provided on the inner walls of the bracket 10 at both ends along the direction close to the rotary assembly 1. The first mating part and the second mating part are fixed to the bracket 10 by screws, so that the first mating part and the second mating part protrude from the inner wall of the bracket 10 along the direction of the rotary assembly 1.

[0063] Preferably, the bracket 10 has a concave semi-circular arc-shaped plate structure, and both the first mating part and the second mating part are semi-circular arc-shaped structures. The first mating part and the second mating part are respectively fixed to the mounting position 1002 provided on the bracket 10, so that the shape of the first mating part and the second mating part is adapted to the mounting position 1002.

[0064] Furthermore, a fixing block 1001 is provided on the outer wall of the bracket 10. The fixing block 1001 is used to fix the components that need to be fixed, so that the oscillating device can be applied in different technical fields.

[0065] Furthermore, the housing is provided with a sliding groove, and the bracket 10 is provided with a slider at a position corresponding to the sliding groove, so that the housing and the bracket 10 can slide relative to each other. The housing is provided with a groove, and the fixing block 1001 provided on the bracket 10 passes through the groove and is slidably connected to the bracket 10, so that when the driving member 9 and the first mating part and the second mating part are engaged and rotate relative to each other, the sliding groove provided on the housing slides along the slider provided on the bracket 10, thereby realizing the relative rotation of the housing and the bracket 10.

[0066] like Figures 6 to 9 As shown, the rotary assembly 1 controls the rotation of the drive component 9. In some embodiments of the present invention, the rotary assembly 1 and the drive component 9 are directly connected to achieve the rotation of the drive component 9 driven by the rotary assembly 1. Of course, in a preferred embodiment of the present invention, the rotary assembly 1 includes a rotary shaft 101, which is connected to a motor. The motor is connected to a reduction gear structure, which is connected to the drive component 9. The reduction gear structure redirects the axial rotation of the rotary assembly 1 to the radial rotation of the drive component 9. Generally, existing motors have relatively high speeds, while the speed at the output end of the motor shaft connected to the drive component 9 is relatively slow. To transfer the high speed of the motor to the relatively slow rotation of the drive component 9, the reduction gear structure includes multi-stage transmission to reduce the motor speed. Of course, the reduction gear structure can be configured with different transmission structures; here, only a multi-stage speed reduction transmission is used as an example for specific explanation.

[0067] Furthermore, the reduction structure includes a gearbox 5, on which a first transmission component is disposed. The first transmission component is rotatably connected to a second transmission component, and the second transmission component is rotatably connected to a third transmission component. The third transmission component and the drive component 9 rotate coaxially, so that the rotation of the motor is reduced in speed through the reduction structure and then transmitted to the drive component 9.

[0068] The following is a detailed description of the multi-stage speed reduction transmission achieved by the reduction structure provided in the above-described embodiments. The first transmission component includes a worm gear 103, which is fixed to the gearbox 5. The main shaft 102 of the motor drives the worm gear 103 to rotate, and the worm gear 103 meshes with the worm wheel 2. The worm wheel 2 and the first cylindrical gear 3 are coaxially driven, and the first cylindrical gear 3 and the second cylindrical gear 4 mesh with each other. The second cylindrical gear 4 and the first bevel gear 6 are coaxially linked, and the first bevel gear 6 and the second bevel gear 7 mesh with each other, with the first bevel gear 6 and the second bevel gear 7 arranged perpendicularly to each other. The second bevel gear 7 and the sector bevel gear rotate in tandem, thereby transmitting the rotation of the rotating component 1 to the end of the second bevel gear 7 to achieve the rotation of the sector bevel gear.

[0069] Furthermore, a connector 16 is fitted onto the outside of the rotary shaft 101. At least two mating holes are provided on the outer wall of the connector 16, arranged circumferentially around the rotary shaft 101. A screw passes through these holes to abut against the outer wall of the rotary shaft 101. The screw restricts the axial freedom of the reduction gear structure, ensuring that the main motor and its reduction gear structure have only rotational freedom relative to the rotary shaft 101.

[0070] like Figure 10 and Figure 11 As shown, a clutch assembly is provided on the motor's mounting base. Rotating the clutch assembly causes the worm gear 2 and worm 103 to separate or engage, thereby controlling the relative oscillation or stillness of the housing and support 10. By rotating the clutch assembly, the worm gear 2 and worm 103 are driven to separate, causing the worm 103 to rotate and unable to engage with the worm gear 2 for transmission, thus achieving relative stillness between the housing and support 10. The user can control the oscillation device as needed.

[0071] like Figures 12 to 14 As shown, the worm gear 2, worm 103, first cylindrical gear 3, second cylindrical gear 4, first bevel gear 6 and second bevel gear 7 are all mounted on the gearbox 5. The speed reduction transmission of the motor is achieved through the speed reduction transmission of the gearbox 5.

[0072] Specifically, the gearbox 5 has a first shaft hole 51, which is concentrically fitted with the worm gear 103, and the worm gear 103 is fixedly connected to the gearbox 5. The first mounting hole 21 on the worm wheel 2 is concentrically fitted with the third shaft hole 53 on the gearbox 5, and the first cylindrical gear 3 fits into the third shaft hole 53, allowing the worm gear 103 to mesh with itself. The second cylindrical gear 4 fits into the second shaft hole 52 on the gearbox 5, allowing the first cylindrical gear 3 to mesh with itself. The second mounting hole 61 on the first bevel gear 6 fits into the second cylindrical gear 4; this shaft hole fit is a double D-axis fit, meaning the first bevel gear 6 and the second cylindrical gear 4 have no relative movement. The third mounting hole 71 on the second bevel gear 7 fits into the fixed shaft 54 ​​on the gearbox 5, allowing the first bevel gear 6 to mesh with itself. The second bevel gear 7 is fixedly connected to the sector bevel gear, thus completing the assembly of the above-mentioned reduction structure, resulting in a three-stage transmission. Specifically, the first stage of transmission is as follows: the rotation of the motor's main shaft 102 drives the worm gear 103 to rotate, and the worm gear 103 meshes with the worm wheel 2 for transmission; the second stage of transmission is as follows: the worm wheel 2 is coaxially linked with the first cylindrical gear 3, driving the first cylindrical gear 3 to rotate, and the first cylindrical gear 3 meshes with the second cylindrical gear 4 for transmission; the third stage of transmission is as follows: the second cylindrical gear 4 is coaxially linked with the first bevel gear 6, and the first bevel gear 6 meshes with the second bevel gear 7 for transmission.

[0073] Furthermore, the motor is connected to the main shaft 102, and the main shaft 102 is connected to the fan blade 13. The motor drives the rotary shaft 101 and the fan blade 13 to rotate simultaneously. The motor linkage drives the oscillation, reducing the use of one motor. Only one motor is needed to drive the dual functions of the fan blade 13 and left and right oscillation, saving production costs.

[0074] Furthermore, a rotating assembly is provided on the housing, which includes a rotating component 182. The rotating component 182 is connected to a knob body 181. Rotating the knob body 181 drives the rotation speed of the rotating assembly to change, thereby adjusting the rotation speed of the oscillating device.

[0075] The assembly process of the oscillating device provided in the embodiments of the present invention is as follows:

[0076] First, the reduction structure engages with the fourth shaft hole 1602 on the connector 16 via the rotating shaft 101 shown in the motor, and the axial freedom of the reduction structure is restricted by screws through the fixing hole 1603 shown, so that the motor and its reduction structure and the rotating shaft 101 only have rotational freedom. Second, the screw holes on the first and second arc-shaped bevel racks are fixedly connected to the screw holes on the bracket 10. The first arc-shaped bevel rack is concentrically aligned with the screw holes on the component to be fixed through the screw holes shown in the bracket 10, and fixedly connected by screws, allowing the sector bevel gear to intermittently mesh with the first and second arc-shaped bevel racks. Finally, the fan blade 13 is assembled sequentially with the main shaft 102, the housing, and the knob assembly.

[0077] The oscillating device provided in this embodiment of the invention enables the oscillating device to achieve two functions using only one motor. The main shaft 102 drives the fan blade 13 to rotate. The motor, through multi-stage transmission, achieves the left and right oscillating function of the oscillating device through the alternating meshing of sector gears under the unidirectional transmission of the main shaft 102.

[0078] The present invention also provides a household appliance, including a base 17, on which a oscillating device is connected. The specific structure of the oscillating device is as described in the above embodiments. Since this household appliance adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0079] For the type of household appliance, it can be any one of the following: fan, air purifier, humidifier, or floor-standing air conditioner indoor unit. When the household appliance is a fan, the casing is the fan head. In the following embodiments, a fan is used as an example for explanation; other types of appliances can be implemented with reference to this example.

[0080] In one embodiment, the housing includes a first housing 12 and a second housing 14. A mesh cover 11 is provided on the first housing 12. The second housing 14 and the first housing 12 are engaged to form a mounting hole. A connector 16 is engaged with the mounting hole so that the protrusion 1601 provided on the connector 16 engages with the base 17.

[0081] like Figure 15 As shown, the base 17 includes a support arm, which is fixedly connected to the base plate. The base plate and the bottom wall of the housing are spaced apart. The top of the housing is connected to the rotating assembly 1. The bracket 10 is fixedly connected to the support arm. The housing is suspended on the support arm so that the housing can rotate relative to the bracket 10.

[0082] Furthermore, an assembly groove 1702 is provided at the top of the support arm, and the assembly groove 1702 and the rotary assembly 1 are engaged. An assembly hole 1701 is provided on the support arm, and a fixing block 1001 is provided on the bracket 10. The support arm and the fixing block 1001 are fixedly connected by screws.

[0083] Preferably, the support arm is configured as an arc-shaped plate structure, and a cable tray 1703 is provided on the inner wall of the support arm. A wire 15 is provided in the cable tray 1703, and the motor is connected to the wire 15 so that the wire 15 is accommodated in the support arm, thereby improving the aesthetics of the fan.

[0084] The specific working principle of the fan provided in the above embodiment is as follows: Rotate the knob assembly 18 to adjust the speed of the motor, drive the fan blades 13 to rotate to realize the fan blowing function. The main shaft 102 is connected to the gearbox 5. Through the reduction transmission of the gearbox 5, drive the sector bevel gear to rotate so that the sector bevel gear can alternately mesh in the first rack 8 and the second rack, thereby driving the slide groove of the second housing 14 to slide relative to the slider provided on the bracket 10, realizing the reciprocating oscillating motion of the housing relative to the bracket 10.

[0085] The household appliance described in this invention can be equipped with a main motor to drive the fan blade 13 and the left and right oscillation function, thereby improving the user experience.

[0086] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A head-shaking device, characterized in that, The device includes a housing and a support. The housing is movably mounted on the support, which has a first mating part and a second mating part. A rotating assembly is mounted on the housing and connected to a driving component. The rotating assembly drives the driving component to rotate, causing the driving component to alternately engage with the first and second mating parts on the support, thereby achieving rotation of the housing relative to the support. The first and second mating parts are configured as a first rack and a second rack. The driving component has teeth, and its rotation causes the teeth to alternately mesh with the first and second racks. Both the first and second racks are arc-shaped bevel racks, and the two arc-shaped bevel racks are set with equal radii around the center of the rotating assembly. The driving component is a sector bevel gear.

2. The head-shaking device according to claim 1, characterized in that, The first mating part and the second mating part are arranged opposite to each other, and the driving member is arranged between the first mating part and the second mating part so that the driving member rotates alternately with the first mating part and the second mating part.

3. The head-shaking device according to claim 1, characterized in that, The radius of the arc-shaped bevel rack centered on the rotating assembly is r1, the radius of the sector bevel gear is r2, the central angle of the sector bevel gear is β, and the rotation angle of the housing relative to the support is α, where α = (β*r2) / r1.

4. The head-shaking device according to claim 1, characterized in that, The central angle of a sector bevel gear is less than or equal to 120 degrees.

5. The head-shaking device according to claim 1, characterized in that, The top end of the bracket is fixedly connected to the first mating part or the second mating part, and the bottom end of the bracket is fixedly connected to the second mating part or the first mating part, so that the housing and the bracket can rotate relative to each other.

6. The head-shaking device according to claim 1, characterized in that, The housing has a sliding groove, and the bracket has a slider at a position corresponding to the sliding groove, so that the housing and the bracket can slide relative to each other.

7. The head-shaking device according to claim 1, characterized in that, The rotary assembly includes a rotary shaft, a motor connected to the rotary shaft, a reduction gear connected to the motor, and a drive component connected to the reduction gear, so that the rotation speed of the motor is reduced by the reduction gear and then transmitted to the drive component.

8. The head-shaking device according to claim 7, characterized in that, A connector is fitted onto the outside of the rotating shaft. At least two mating holes are provided on the outer wall of the connector. The at least two mating holes are arranged along the circumference of the rotating shaft. A screw passes through the mating holes so that the screw abuts against the outer wall of the rotating shaft.

9. The head-shaking device according to claim 7, characterized in that, The motor is connected to the main shaft, and the main shaft is connected to the fan blades. The motor drives both the rotating shaft and the fan blades to rotate.

10. The head-shaking device according to claim 7, characterized in that, The reduction structure includes a gearbox, on which a first transmission component is mounted. The first transmission component is rotatably connected to a second transmission component, and the second transmission component is rotatably connected to a third transmission component. The third transmission component and the driving component rotate coaxially.

11. The head-shaking device according to claim 10, characterized in that, The first transmission assembly includes a worm gear, which is fixed to a gearbox. The motor drives the worm gear to rotate, and the worm gear meshes with the worm wheel to rotate.

12. The head-shaking device according to claim 11, characterized in that, The second transmission assembly includes a first cylindrical gear and a second cylindrical gear that mesh with each other, with the first cylindrical gear and the worm gear rotating coaxially.

13. The head-shaking device according to claim 12, characterized in that, An anti-rotation structure is provided on the outer wall of the first cylindrical gear so that the outer wall of the first cylindrical gear abuts against or separates from the worm gear.

14. The head-shaking device according to claim 12, characterized in that, The third transmission component includes a first bevel gear and a second bevel gear that mesh with each other, the first bevel gear and the second cylindrical gear are coaxial and linked, and the first bevel gear and the second bevel gear are arranged perpendicular to each other.

15. The head-shaking device according to claim 11, characterized in that, The motor mounting base is equipped with a clutch assembly. Rotating the clutch assembly causes the worm gear and worm to separate or engage, thereby controlling the relative swinging or stationary movement of the housing and the support.

16. A household appliance, characterized in that, Includes a base, to which the oscillating device as described in any one of claims 1-15 is connected.

17. The household appliance according to claim 16, characterized in that, The base includes a support arm, which is fixedly connected to a base plate. A gap is provided between the base plate and the bottom wall of the housing. The top of the housing is connected to a rotating assembly. A bracket is fixedly connected to the support arm. The housing is suspended on the support arm so that the housing can rotate relative to the bracket.

18. The household appliance according to claim 17, characterized in that, The top of the support arm is provided with an assembly groove, which is engaged with the rotating component. The support arm is provided with an assembly hole, and the bracket is provided with a fixing block. The support arm and the fixing block are fixedly connected by screws.

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