CN112761992B

CN112761992B - Fan and oscillating mechanism

Info

Publication number: CN112761992B
Application number: CN202110096916.1A
Authority: CN
Inventors: 白建东; 刘陈; 张逸鸿; 梁桂明; 黄雪珍; 冯政博
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2024-08-27
Anticipated expiration: 2041-01-25
Also published as: CN112761992A

Abstract

The invention relates to a fan and a head shaking mechanism. When the fan body is used, the fan body is arranged on the supporting frame, the supporting frame is arranged on the mounting seat, the driving assembly drives the supporting frame to swing around the rotation axis relative to the mounting seat, and further the fan body arranged on the supporting frame swings around the rotation axis relative to the mounting seat, so that the fan body air outlet angle is adjusted. Because the rolling body sets up between support frame and mount pad and is located limit structure spacing cooperation, utilize limit structure can restrict the rolling body to be close to or keep away from the direction displacement of axis of rotation for the rolling body can roll between support frame and mount pad steadily, reduces the support frame and is around axis of rotation wobbling frictional force for the mount pad, and then improves support frame for mount pad wobbling stability, avoids appearing the jamming at the in-process of adjusting.

Description

Fan and oscillating mechanism

Technical Field

The invention relates to the technical field of fan structures, in particular to a fan and a head shaking mechanism.

Background

The traditional fan generally realizes the adjustment of the wind angle by adjusting the wind outlet angle, or realizes the adjustment of the wind outlet angle by a head shaking mechanism. However, the conventional oscillating mechanism generally realizes adjustment of the wind angle through a gear transmission mechanism, so that the conventional oscillating mechanism has poor oscillating stability in the process of adjusting the wind outlet angle, and affects the stability of adjusting the wind outlet angle.

Disclosure of Invention

Aiming at the problem of poor shaking stability, the invention provides a fan and a shaking mechanism, which can achieve the technical effect of improving the shaking stability.

The head shaking mechanism comprises a support frame, a mounting seat, a driving assembly and rolling bodies, wherein the support frame is used for mounting a fan body; the support frame is arranged on the mounting seat, and can swing around a rotation axis relative to the mounting seat; a limiting structure is arranged between the supporting frame and the mounting seat; the driving assembly is used for driving the supporting frame to swing around the rotation axis relative to the mounting seat; the rolling bodies are arranged between the supporting frame and the mounting seat and are in limit fit with the limit structure, the limit structure is used for limiting the rolling bodies to move towards or away from the direction of the rotation axis, and the rolling bodies can roll between the supporting frame and the mounting seat.

In one embodiment, the limiting structure is formed on the mounting seat and is a first limiting groove, the first limiting groove is formed on one side of the mounting seat facing the supporting frame, one side of the rolling body facing the mounting seat is formed in the first limiting groove, and the rolling body can roll in the first limiting groove; and/or

The limiting structure is formed on the supporting frame and is a second limiting groove, one side of the supporting frame facing the mounting seat is provided with the second limiting groove, one side of the rolling body facing the supporting frame is provided with the second limiting groove, and the rolling body can roll in the second limiting groove.

In one embodiment, if a first limiting groove is provided on the mounting seat, the oscillating mechanism further includes a first limiting member, the first limiting member is disposed on a side of the mounting seat facing the supporting frame, and the first limiting groove is disposed on a side of the first limiting member facing the supporting frame;

If a second limit groove is formed in the support frame, the oscillating mechanism further comprises a second limit piece, the second limit piece is arranged on one side of the support frame facing the mounting seat, and the second limit groove is formed in one side of the second limit piece facing the mounting seat.

In one embodiment, the first limiting member has an annular structure, the first limiting groove has an annular groove, and a central axis of the annular groove is the rotation axis; the first limiting piece is positioned on the mounting seat or can rotate around the rotation axis relative to the mounting seat; and/or

The second limiting piece is of an annular structure, the second limiting groove is an annular groove, and the central axis of the annular groove is the rotation axis; the second limiting piece is positioned on the mounting seat or can rotate around the rotation axis relative to the mounting seat.

In one embodiment, the number of the rolling bodies is plural, and different rolling bodies are arranged between the mounting seat and the supporting frame around the axis of rotation.

In one embodiment, the rolling body and the mounting seat are provided with a clamping groove, one of the rolling body and the mounting seat is provided with a rolling shaft, the axial direction of the rolling shaft faces the direction of the rotation axis, the rolling shaft penetrates through the clamping groove, the rolling shaft can rotate around the axis of the rolling shaft in the clamping groove, and the clamping groove is used for limiting the rolling shaft to displace around the rotation axis.

In one embodiment, the mounting seat faces one side of the supporting frame, the limiting structure is located in the placing groove, the clamping grooves are respectively formed in two opposite side walls of the placing groove along the direction of the rotation axis, the rolling bodies comprise rolling rings, the rolling rings are sleeved on the rolling shafts, two opposite ends of the rolling shafts are respectively arranged in the clamping grooves in a penetrating mode, and the rolling rings are in limiting fit with the limiting structure.

In one embodiment, the outer ring surface of the rolling ring is an arc surface.

In one embodiment, the rolling body further comprises a stop collar, the stop collar is sleeved on the roller, the rolling ring is sleeved on the outer wall of the stop collar, at least two abutting protrusions are arranged on the inner wall of the stop collar, different abutting protrusions are arranged around the axis of the roller at intervals, and the abutting protrusions can abut on the roller.

In one embodiment, the driving assembly comprises a driving source, a crank and a rocker, one end of the crank is rotatably connected with the rocker, the other end of the crank is connected with the driving source, the driving source is arranged on the supporting frame, and one end of the rocker, which is far away from the crank, is rotatably arranged on the mounting seat.

In one embodiment, the support frame is provided with an arc groove, the arc direction of the arc groove is set around the rotation axis, and one end of the rocker, which is far away from the crank, is arranged in the arc groove in a penetrating manner and is rotatably arranged on the mounting seat.

In one embodiment, the support frame is provided with a first abutting part, the mounting seat is provided with a second abutting part, and the support frame can rotate around the rotation axis relative to the mounting seat so as to enable the first abutting part to rotate to one side, opposite to the fan body, of the second abutting part; and one end of the rocker, which is far away from the crank, can swing along the arc line direction in the arc-shaped groove, so that at least part or all of the first abutting part is positioned on one side of the second abutting part, which is away from the fan body.

In one embodiment, the mounting seat is further provided with an avoidance space, the avoidance space and the second abutting portion are arranged around the rotation axis, the avoidance space and the second abutting portion are communicated with a space on one side of the fan body, and the dimension of the avoidance space is larger than or equal to that of the first abutting portion.

In one embodiment, a first rotating structure is arranged on one side, facing the mounting seat, of the support frame, a second rotating structure is arranged on one side, facing the support frame, of the mounting seat, the second rotating structure is in rotating fit with the first rotating structure, and the rotating axis is the rotating axis of the first rotating structure relative to the second rotating structure.

A fan comprises a fan body and the oscillating mechanism, wherein the fan body is arranged on a supporting frame.

Above-mentioned fan and mechanism of shaking head, when using, set up the fan body on the support frame, the support frame sets up on the mount pad, and drive assembly drive support frame is around the axis of rotation swing for the mount pad, and then realizes setting up the fan body on the support frame and is around the swing of axis of rotation with the mount pad, realizes the regulation of fan body air-out angle. Because the rolling body sets up between support frame and mount pad and is located limit structure spacing cooperation, utilize limit structure can restrict the rolling body to be close to or keep away from the direction displacement of axis of rotation for the rolling body can roll between support frame and mount pad steadily, reduces the support frame and is around axis of rotation wobbling frictional force for the mount pad, and then improves support frame for mount pad wobbling stability, avoids appearing the jamming at the in-process of adjusting.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Moreover, the figures are not drawn to a 1:1 scale, and the relative sizes of various elements are merely exemplary in the figures, and are not necessarily drawn to true scale. In the drawings:

FIG. 1 is an exploded view of a panning mechanism in one embodiment;

FIG. 2 is a cross-sectional view of the panning mechanism shown in FIG. 1;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a schematic structural view of the first limiting member in FIG. 3;

FIG. 5 is a schematic view of the rolling element of FIG. 2;

FIG. 6 is a schematic view of the mounting base in FIG. 2;

FIG. 7 is a schematic view of the support frame of FIG. 2;

FIG. 8 is an enlarged view at B in FIG. 2;

FIG. 9 is a schematic view of the oscillating mechanism shown in FIG. 1 in a use state;

Fig. 10 is a schematic view of the oscillating mechanism shown in fig. 1 in another use state.

Reference numerals illustrate:

10. The device comprises a head shaking mechanism, 100, a support frame, 110, a second limit groove, 120, an arc groove, 130, a first abutting part, 140, a matching hole, 150, a rotating shaft, 200, an installation seat, 210, a first limit groove, 220, a first limit piece, 222, a positioning part, 230, a placing groove, 240, a clamping groove, 250, a connecting part, 260, a second abutting part, 270, an avoidance space, 280, a matching part, 290, a rotating hole, 300, a driving component, 310, a driving source, 320, a crank, 330, a rocker, 400, a rolling body, 410, a rolling shaft, 420, a rolling ring, 430, a limit sleeve, 440, an abutting bulge, 500 and a shaft sleeve.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1, in an embodiment, a fan body and a head shaking mechanism 10 are provided, the fan body is disposed on the head shaking mechanism 10, and an air outlet angle of the fan body is adjusted by using the head shaking mechanism 10.

In an embodiment of the present invention, the oscillating mechanism 10 includes a supporting frame 100, a mounting seat 200, a driving assembly 300 and a rolling body 400, wherein the supporting frame 100 is disposed on the mounting seat 200, and the supporting frame 100 can oscillate around a rotation axis a relative to the mounting seat 200; a limiting structure is arranged between the supporting frame 100 and the mounting seat 200; the driving assembly 300 is used for driving the supporting frame 100 to swing around the rotation axis a relative to the mounting seat 200; the rolling element 400 is disposed between the support 100 and the mounting base 200 and is in limit fit with the limit structure, the limit structure is used for limiting the rolling element 400 to move toward or away from the rotation axis a, and the rolling element 400 can roll between the support 100 and the mounting base 200. The fan body is arranged on the supporting frame 100.

When the fan and the head shaking mechanism 10 are used, the fan body is arranged on the support frame 100, the support frame 100 is arranged on the mounting seat 200, the driving assembly 300 drives the support frame 100 to swing around the rotation axis a relative to the mounting seat 200, and further the fan body arranged on the support frame 100 swings around the rotation axis a relative to the mounting seat 200, so that the fan body air outlet angle is adjusted. Because the rolling body 400 is arranged between the support frame 100 and the mounting seat 200 and is in limit fit with the limit structure, the rolling body 400 can be limited to move towards the direction close to or far away from the rotation axis a by utilizing the limit structure, so that the rolling body 400 can stably roll between the support frame 100 and the mounting seat 200, the friction force of the support frame 100, which is relative to the mounting seat 200 and swings around the rotation axis a, is reduced, the stability of the support frame 100, which is relative to the mounting seat 200, is improved, and the shell blocking is avoided in the adjusting process.

In one embodiment, the number of the limiting structures is at least two, and the at least two limiting structures are arranged at intervals along the direction away from the rotation axis a; the rolling bodies 400 are disposed between the supporting frame 100 and the mounting base 200 and between the two limiting structures. The rolling bodies 400 are limited to be displaced in a direction approaching or separating from the rotation axis a by two spacing structures arranged at intervals, so that the rolling bodies 400 can stably roll between the support frame 100 and the mounting seat 200.

Referring to fig. 2 and 3, in an embodiment, the limiting structure is disposed on the mounting base 200, and the limiting structure is a first limiting groove 210. Specifically, a first limiting groove 210 is disposed on a side of the mounting base 200 facing the support frame 100. The side of the rolling element 400 facing the mounting seat 200 is disposed in the first limiting groove 210, and the rolling element 400 can roll in the first limiting groove 210. By arranging the first limiting groove 210 to limit the rolling element 400, the rolling element 400 can be effectively prevented from moving towards or away from the rotation axis a relative to the mounting seat 200, and the rolling stability of the rolling element 400 between the mounting seat 200 and the supporting frame 100 is improved. In this embodiment, the first limiting grooves 210 are respectively formed as two limiting structures disposed at intervals along two opposite inner sidewalls in a direction away from the rotation axis a.

Further, the oscillating mechanism 10 further includes a first limiting member 220, the first limiting member 220 is disposed on a side of the mounting base 200 facing the support frame 100, and the first limiting slot 210 is disposed on a side of the first limiting member 220 facing the support frame 100. Since the rolling element 400 is disposed in the first limiting groove 210 and can roll in the first limiting groove 210, the rolling element 400 wears the inner wall of the first limiting groove 210 more. By arranging the first limiting groove 210 on the first limiting piece 220, the installation seat 200 is prevented from being worn due to rolling, and the stability of the structure of the installation seat 200 is ensured.

Referring to fig. 4, in the present embodiment, the first limiting member 220 is an annular structure, the first limiting groove 210 is an annular groove, and a central axis of the annular groove is the rotation axis a. Specifically, the inner ring surface and the outer ring surface of the annular groove are respectively formed into two spacing structures which are arranged at intervals. In other embodiments, the first limiting groove 210 may be a groove with other shapes, so long as the rolling element 400 can be limited in the first limiting groove 210.

Optionally, the first limiting member 220 is positioned on the mounting base 200. Specifically, the outer wall of the first limiting member 220 is provided with a positioning portion 222, the mounting seat 200 is provided with a positioning groove, and when the first limiting member 220 is disposed on the mounting seat 200, the positioning portion 222 is disposed in the positioning groove, so that the first limiting member 220 is mounted and positioned on the mounting seat 200, and the first limiting member 220 is prevented from moving relative to the mounting seat 200.

Optionally, the first limiting member 220 is rotatable about the rotation axis a relative to the mounting base 200. The mounting base 200 is formed with an annular placement groove 230 around the rotation axis a, and the first stopper 220 is disposed in the annular placement groove 230 and is rotatable in the annular placement groove 230.

Referring to fig. 2 and 3, in another embodiment, the limiting structure is disposed on the mounting base 200, and the limiting structure is the second limiting groove 110. Specifically, a second limiting groove 110 is disposed on a side of the supporting frame 100 facing the mounting seat 200. The side of the rolling element 400 facing the supporting frame 100 is disposed in the second limiting groove 110, and the rolling element 400 can roll in the second limiting groove 110. By arranging the second limiting groove 110 to limit the rolling element 400, the rolling element 400 can be effectively prevented from moving towards or away from the rotation axis a relative to the support frame 100, and the rolling stability of the rolling element 400 between the mounting seat 200 and the support frame 100 is improved. In this embodiment, the second limiting groove 110 is formed with two limiting structures disposed at intervals along two opposite inner sidewalls in a direction away from the rotation axis a.

Further, the oscillating mechanism 10 further includes a second limiting member, the second limiting member is disposed on a side of the support frame 100 facing the mounting seat 200, and the second limiting slot 110 is disposed on a side of the second limiting member facing the mounting seat 200. Since the rolling element 400 is disposed in the second limiting groove 110 and can roll in the second limiting groove 110, the rolling element 400 wears the inner wall of the second limiting groove 110 more. By arranging the second limiting groove 110 on the second limiting piece, the support frame 100 is prevented from being worn due to rolling, and the stability of the structure of the support frame 100 is ensured. In other embodiments, the second stop may also be omitted.

Further, the second limiting member has an annular structure, the second limiting groove 110 is an annular groove, and a central axis of the annular groove is the rotation axis a. Specifically, the inner ring surface and the outer ring surface of the annular groove are respectively formed into two spacing structures which are arranged at intervals. In other embodiments, the first limiting groove 210 may have other shapes, as long as one side of the rolling element 400 is disposed in the first limiting groove 210.

Optionally, the second stop is positioned on the support 100. Optionally, the second stop is rotatable about the rotation axis a relative to the support 100.

In other embodiments, the number of the limiting structures is at least two, wherein at least one limiting structure is disposed on the mounting seat 200, and at least one other limiting structure is disposed on the supporting frame 100 and opposite to the limiting structure on the mounting seat 200, so that the stability of the rolling element 400 in limiting can be further improved.

In another embodiment, an annular groove along the rolling direction of the rolling element 400 may be formed on the outer wall of the rolling element 400, and a limiting protrusion may be disposed on the mounting seat 200 and/or the supporting frame 100, and the limiting protrusion may be disposed in the annular groove in a penetrating manner, so as to limit the rolling element 400 from moving toward or away from the rotation axis a.

Referring to fig. 3, 5 and 6, in one embodiment, one of the rolling body 400 and the mounting seat 200 is provided with a clamping groove 240, the other is provided with a roller 410, the axial direction of the roller 410 is the direction towards the rotation axis a, the roller 410 is inserted into the clamping groove 240, and the roller 410 can rotate around the axis of the roller 410 in the clamping groove 240, and the clamping groove 240 is used for limiting the displacement of the roller 410 around the rotation axis a. The positioning groove 240 can limit the displacement of the roller 410 around the rotation axis a, so that the rolling body 400 can roll at a fixed position, the displacement of the rolling body 400 around the rotation axis a is avoided, and the stability of the support 100 in swinging relative to the mounting seat 200 through the rolling body 400 can be further improved.

In this embodiment, a placement groove 230 is formed on a side of the mounting seat 200 facing the support frame 100, the limiting structure is located in the placement groove 230, and the clamping grooves 240 are respectively formed on two opposite side walls of the placement groove 230 along the direction facing the rotation axis a. The rolling body 400 includes a rolling ring 420, the rolling ring 420 is sleeved on the roller 410, two opposite ends of the roller 410 are respectively disposed in the two clamping grooves 240 in a penetrating manner, and the rolling ring 420 is in limit fit with the limit structure. By arranging the rolling ring 420, the rolling shaft 410 is convenient to penetrate through, and the rolling ring 420 is convenient to be in limit fit with the limit structure, so that the position of the rolling ring 420 is prevented from changing relative to the rotation axis a.

In this embodiment, the outer ring surface of the rolling ring 420 is an arc surface, so as to avoid the influence of the angular position on the rolling ring 420 on the rolling stability of the rolling element 400. In other embodiments, the outer ring surface of the rolling ring 420 may also be matched with the space enclosed by the inner wall of the first limiting groove 210. While the first spacing groove 210 is sized to match the second spacing groove 110.

In other embodiments, the roller 410 is disposed on the inner wall of the placement groove 230, the inner ring surface of the rolling ring 420 encloses the clamping groove 240, and the roller 410 can be disposed in the clamping groove 240.

Alternatively, in another embodiment, a detent groove 240 may be formed on one of the rolling element 400 and the supporting frame 100, and a roller 410 may be formed on the other rolling element 410 and pass through the detent groove 240. So that the rolling bodies 400 are limited on the supporting frame 100, when the supporting frame 100 swings relative to the mounting seat 200, the rolling bodies 400 can be driven to synchronously swing relative to the mounting seat 200, and the flexibility of the supporting frame 100 swinging relative to the mounting seat 200 is improved.

In an embodiment, the rolling element 400 further includes a stop collar 430, the stop collar 430 is sleeved on the roller 410, and the rolling ring 420 is sleeved on the outer wall of the stop collar 430. Further, the length of the stop collar 430 along the axial direction of the roller 410 is greater than the length of the rolling ring 420 along the axial direction. After the roller 410 is inserted into the positioning slot 240, the stop collar 430 can be positioned in the positioning slot 230. By providing the stopper 430, the rolling elements 400 can be further restricted from being displaced in a direction approaching or separating from the rotation axis a. In other embodiments, stop collar 430 may also be omitted.

Optionally, the stop collar 430 is in clearance fit with the roller 410, and the stop collar 430 is rotatable relative to the roller 410. Optionally, the stop collar 430 may also be in interference fit with the roller 410, and the stop collar 430 is not rotatable relative to the roller 410.

Specifically, at least two abutment protrusions 440 are disposed on the inner wall of the stop collar 430, different abutment protrusions 440 are disposed at intervals around the axis of the roller 410, and the abutment protrusions 440 can abut against the roller 410. Since the abutment protrusion 440 directly abuts against the roller 410, the processing precision of the inner wall of the stop collar 430 can be reduced, and only the abutment protrusion 440 needs to be abutted against the roller 410. In the present embodiment, the number of the abutment projections 440 is four, and the four abutment projections 440 are uniformly disposed around the roller 410. In other embodiments, the number of abutment projections 440 can also be other numbers.

Referring to fig. 1 and 2, in one embodiment, the rolling elements 400 are plural, and different rolling elements 400 are disposed between the mounting base 200 and the supporting frame 100 at intervals around the rotation axis a. The stability of the swing of the support frame 100 with respect to the mount 200 can be further improved by providing a plurality of rolling bodies 400.

In an embodiment, the rolling element 400 is an injection molding, so as to form the shape of the rolling element 400. In other embodiments, the rolling elements 400 may be other types of structural members. In the present embodiment, the rolling ring 420 is integrally formed on the stop collar 430, i.e. the rolling body 400 is an integrally formed structure. In other embodiments, the rolling ring 420 and the stop collar 430 may be in a split structure, and the rolling ring 420 is sleeved on the stop collar 430.

Referring to fig. 1 and 2, in an embodiment, the driving assembly 300 includes a driving source 310, a crank 320 and a rocker 330, one end of the crank 320 is rotatably connected to the rocker 330, the other end is connected to the driving source 310, the driving source 310 is disposed on the support frame 100, one end of the rocker 330 away from the crank 320 is rotatably disposed on the mounting base 200, the driving source 310 is used for driving the crank 320 to rotate, and the rocker 330 is used for driving the mounting base 200 to swing around the rotation axis a relative to the support frame 100. The driving source 310 drives the crank 320 to rotate, and the rocker 330 is used to realize the swinging of the mounting seat 200 relative to the support frame 100. In the present embodiment, the position of the mounting base 200 is fixed, and the fan is driven to swing relative to the mounting base 200 by the supporting frame 100.

In another embodiment, the driving source 310 may also be disposed on the mounting base 200, and the rocker 330 is rotatably disposed on the support frame 100 at an end far away from the crank 320. Alternatively, in other embodiments, the driving assembly 300 may be a gear transmission structure driven by the driving source 310, and the support frame 100 swings around the rotation axis a relative to the mounting seat 200 through the gear transmission structure.

Referring to fig. 1 and 6, in an embodiment, a connecting portion 250 is disposed on a side of the mounting base 200 facing the supporting frame 100, and an end of the rocker 330 remote from the crank 320 is rotatably disposed on the connecting portion 250. Providing a mounting location for the rocker 330 is facilitated by providing the connection 250 on the mount 200. In other embodiments, the connection 250 may also be omitted. The end of the rocker 330 remote from the crank 320 is directly disposed on the mount 200. Alternatively, the connection portion 250 may be disposed at an end of the rocker 330 remote from the crank 320, and the rocker 330 is disposed on the mount 200 through the connection portion 250.

Referring to fig. 7 and 9, in an embodiment, the support frame 100 is provided with an arc slot 120, an arc direction of the arc slot 120 is set around the rotation axis a, one end of the rocker 330 away from the crank 320 is disposed in the arc slot 120 in a penetrating manner and is rotatably disposed on the mounting seat 200, and one end of the rocker 330 away from the crank 320 can swing in the arc slot 120 along the arc direction. Because the arc direction of the arc-shaped groove 120 is set around the rotation axis a, when the end of the rocker 330 far away from the crank 320 passes through the arc-shaped groove 120, the arc-shaped groove 120 is convenient to limit the swing range of the rocker 330 driving the mounting seat 200 relative to the support frame 100. Specifically, the connecting portion 250 is disposed in the arc-shaped slot 120 in a penetrating manner, and the rocker 330 can drive the connecting portion 250 to move in the arc-shaped slot 120, so as to achieve the purpose of limiting the swinging range of the support 100 relative to the mounting seat 200.

Referring to fig. 9 and 10, when the crank 320 drives the rocker 330 to drive the connecting portion 250 to move in the counterclockwise direction in the arc-shaped slot 120, the corresponding support frame 100 can rotate clockwise relative to the mounting base 200. Similarly, when the crank 320 drives the rocker 330 to drive the connecting portion 250 to move in the clockwise direction in the arc-shaped slot 120, the corresponding support frame 100 can rotate counterclockwise relative to the mounting base 200. When the crank 320 drives the rocker 330 to drive the connecting portion 250 to swing in the arc-shaped groove 120, the support 100 can swing relative to the mounting seat 200.

Referring to fig. 6 to 8, in an embodiment, the support frame 100 is provided with a first abutting portion 130, the mounting base 200 is provided with a second abutting portion 260, and the support frame 100 can rotate around the rotation axis a relative to the mounting base 200, so that the first abutting portion 130 rotates to a side of the second abutting portion 260 opposite to the fan body; the end of the rocker 330 away from the crank 320 can swing along the arc direction in the arc-shaped slot 120, so that at least part or all of the first abutting portion 130 is located on the side of the second abutting portion 260 facing away from the fan body. Because the rocker 330 drives the mounting seat 200 to swing relative to the support frame 100, at least part or all of the first abutting portion 130 is located at one side of the second abutting portion 260 opposite to the fan body, further the support frame 100 can be restricted from moving towards the fan body, the support frame 100 is prevented from being separated from the mounting seat 200 in the swinging process of the support frame 100 relative to the mounting seat 200, and the swinging stability of the support frame 100 relative to the mounting seat 200 is further improved.

Specifically, the mounting seat 200 is further formed with an avoidance space 270, the avoidance space 270 and the second abutting portion 260 are disposed around the rotation axis a, the avoidance space 270 is communicated with a space of the second abutting portion 260 opposite to the fan, and the size of the avoidance space 270 is greater than or equal to the size of the first abutting portion 130. In the process of installing the support frame 100 on the installation seat 200, the first abutting portion 130 is located in the avoidance space 270 along the direction of the rotation axis a, the first abutting portion 130 is inserted into the avoidance space 270 along the direction of the rotation axis a, the support frame 100 is further rotated around the rotation axis a, so that the first abutting portion 130 is rotated from the avoidance space 270 to a space, on one side, opposite to the fan body, of the second abutting portion 260, and further limiting of the support frame 100 relative to the installation seat 200 along the direction of the rotation axis a is achieved.

In an embodiment, in order to ensure that all or part of the first abutting portion 130 is located in the space of the side of the second abutting portion 260 facing away from the fan body in the process of the rocker 330 driving the mounting base 200 to swing relative to the supporting frame 100, the central angle of the first abutting portion 130 and/or the central angle of the second abutting portion 260 needs to be greater than one half of the central angle of the arc-shaped slot 120.

In this embodiment, a mating portion 280 is disposed on a side of the mounting base 200 facing the support frame 100, a mating hole 140 is formed on a side of the support frame 100 facing the mounting base 200, and when the support frame 100 is disposed on the mounting base 200, the mating portion 280 can be disposed in the mating hole 140 in a penetrating manner, and the mating portion 280 can rotate in the mating hole 140. The second abutting portion 260 is disposed on a sidewall of the mating portion 280, and the first abutting portion 130 is disposed on an inner wall of the mating hole 140. The axis of the mating hole 140 is disposed coaxially with the rotational axis a.

In the present embodiment, the number of the first abutment portions 130 is at least two, and the at least two first abutment portions 130 are disposed at intervals around the rotation axis a. The number of the second abutting portions 260 corresponds to the number of the first abutting portions 130, and each first abutting portion 130 can be correspondingly disposed in a space of a side of the second abutting portion 260 facing away from the fan body. The space between two adjacent first abutting portions 130 is formed as a avoiding space 270, and the second abutting portion 260 can rotate to one side of one of the first abutting portions 130 in the space between two adjacent first abutting portions 130. Specifically, the different first abutment portions 130 are disposed at uniform intervals about the rotation axis a. For example, in the present embodiment, the number of the first abutting portions 130 is two, and the two first abutting portions 130 are disposed at even intervals around the rotation axis a; the number of the second abutting portions 260 is two, and the two second abutting portions 260 are uniformly spaced around the rotation axis a.

In other embodiments, the fitting hole 140 may be formed on the mounting base 200, and the first abutment 130 is disposed on an inner wall of the fitting hole 140. The support 100 can be disposed in the mating hole 140 in a penetrating manner on a side of the support facing the mounting base 200, and can rotate in the mating hole 140, and the second abutting portion 260 is disposed on an outer wall of the support 100.

Referring to fig. 2, 6 and 7, in an embodiment, a first rotating structure is disposed on a side of the support frame 100 facing the mounting base 200, a second rotating structure is disposed on a side of the mounting base 200 facing the support frame 100, the second rotating structure is in rotating fit with the first rotating structure, and the rotation axis a is a rotation axis of the first rotating structure relative to the second rotating structure. Through the running fit of the first rotating structure and the second rotating structure, the stability of the support frame 100 relative to the swing of the mounting seat 200 can be further improved.

For example, the first rotating structure is a rotating shaft 150, the second rotating structure is a rotating hole 290, and the rotating shaft 150 is disposed in the rotating hole 290 in a penetrating manner and can rotate in the rotating hole 290. The axis of the rotation hole 290 is the rotation axis a of the support 100 swinging relative to the mounting seat 200. Or the first rotating structure is a rotating hole, and the second rotating structure is a rotating shaft.

Referring to fig. 2 and 6, in an embodiment, the oscillating mechanism 10 further includes a shaft sleeve 500, the shaft sleeve 500 is disposed in the rotation hole 290, and the rotation shaft 150 is disposed in the shaft sleeve 500 in a penetrating manner. Because the rotating shaft 150 rotates in the rotating hole 290, the shaft sleeve 500 is arranged to prevent the rotating shaft 150 from directly contacting with the inner wall of the rotating hole 290, so that the inner wall of the rotating hole 290 is prevented from being worn. In this embodiment, the sleeve 500 may be made of a wear resistant material.

Specifically, one of the outer wall of the shaft sleeve 500 and the inner wall of the rotation hole 290 is provided with a limiting protrusion, and the other is provided with a limiting groove, so that the limiting protrusion is arranged in the limiting groove when the shaft sleeve 500 is arranged in the rotation hole 290. The rotation of the sleeve 500 with respect to the rotation hole 290 can be restricted by the cooperation of the limit protrusion and the limit groove.

Further, the inner wall of the rotation hole 290 is far away from the position of the support frame 100, a limiting convex edge is arranged at one end of the shaft sleeve 500, when the shaft sleeve 500 is arranged in the rotation hole 290, the supporting portion can be abutted against the limiting convex edge, the position of the shaft sleeve 500 in the rotation hole 290 is further limited, and further the stability of the shaft sleeve 500 in the rotation hole 290 is further improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Claims

1. A head-shaking mechanism, characterized in that it comprises:

the support frame is used for installing the fan body;

The support frame is arranged on the mounting seat and can swing around a rotation axis relative to the mounting seat; a limiting structure is arranged between the supporting frame and the mounting seat;

The driving assembly is used for driving the supporting frame to swing around the rotation axis relative to the mounting seat; and

The rolling body is arranged between the support frame and the mounting seat and is in limit fit with the limit structure, the limit structure is used for limiting the rolling body to move towards or away from the rotation axis, and the rolling body can roll between the support frame and the mounting seat;

One of the rolling bodies and the mounting seat is provided with a clamping groove, the other one is provided with a rolling shaft, the axial direction of the rolling shaft faces the direction of the rotating axis, the rolling shaft penetrates through the clamping groove, the rolling shaft can rotate around the axial line of the rolling shaft in the clamping groove, and the clamping groove is used for limiting the displacement of the rolling shaft around the rotating axis; the mounting seat faces one side of the support frame, a placing groove is formed in the placing groove, the placing groove faces the opposite side walls of the rotating axis direction, clamping grooves are formed in the opposite side walls of the placing groove, the rolling body comprises a rolling ring, the rolling ring is sleeved on the rolling shaft, the opposite ends of the rolling shaft penetrate through the two clamping grooves respectively, and the rolling ring is in limiting fit with the limiting structure.

2. The head shaking mechanism according to claim 1, wherein the limit structure is formed on the mounting base and is a first limit groove, the first limit groove is arranged on one side of the mounting base facing the supporting frame, the rolling body is arranged on the first limit groove on one side of the mounting base facing the first limit groove, and the rolling body can roll in the first limit groove; and/or

3. The head shaking mechanism according to claim 2, wherein if the mounting seat is provided with a first limiting groove, the head shaking mechanism further comprises a first limiting piece, the first limiting piece is arranged on one side of the mounting seat facing the supporting frame, and the first limiting groove is formed on one side of the first limiting piece facing the supporting frame;

4. The oscillating mechanism of claim 3, wherein the first limiting member is of annular configuration, the first limiting groove is an annular groove, and a central axis of the annular groove is the axis of rotation; the first limiting piece is positioned on the mounting seat or can rotate around the rotation axis relative to the mounting seat; and/or

5. The head shaking mechanism according to claim 1, wherein a plurality of the rolling elements are provided, and different rolling elements are arranged between the mounting base and the supporting frame around the rotation axis.

6. The oscillating mechanism of claim 1, wherein the outer ring surface of the rolling ring is an arcuate surface.

7. The head shaking mechanism according to claim 1, wherein the rolling bodies further comprise a limit sleeve, the limit sleeve is sleeved on the roller, the rolling ring is sleeved on the outer wall of the limit sleeve, at least two abutting protrusions are arranged on the inner wall of the limit sleeve, different abutting protrusions are arranged at intervals around the axis of the roller, and the abutting protrusions can abut on the roller.

8. The head shaking mechanism of any one of claims 1-7 wherein the drive assembly comprises a drive source, a crank and a rocker, one end of the crank is rotatably connected to the rocker, the other end is connected to the drive source, the drive source is disposed on the support frame, and an end of the rocker remote from the crank is rotatably disposed on the mount.

9. The head shaking mechanism of claim 8, wherein the support frame is provided with an arc-shaped groove, the arc direction of the arc-shaped groove is set around the rotation axis, and one end of the rocker, which is far away from the crank, is penetrated in the arc-shaped groove and is rotatably arranged on the mounting seat.

10. The head shaking mechanism according to claim 9, wherein a first abutting portion is provided on the support frame, a second abutting portion is provided on the mounting seat, and the support frame can rotate around the rotation axis relative to the mounting seat, so that the first abutting portion rotates to a side, opposite to the fan body, of the second abutting portion; and one end of the rocker, which is far away from the crank, can swing along the arc line direction in the arc-shaped groove, so that at least part or all of the first abutting part is positioned on one side of the second abutting part, which is away from the fan body.

11. The oscillating mechanism as defined in claim 10, wherein the mounting base is further formed with an avoidance space, the avoidance space and the second abutment portion are disposed around the rotation axis, the avoidance space and the second abutment portion are communicated with a space on a side opposite to the fan body, and a size of the avoidance space is greater than or equal to a size of the first abutment portion.

12. The tilting mechanism according to any of claims 1-7, wherein a first rotational structure is provided on a side of the support frame facing the mounting base, a second rotational structure is provided on a side of the mounting base facing the support frame, the second rotational structure is in rotational engagement with the first rotational structure, and the rotational axis is a rotational axis of the first rotational structure relative to the second rotational structure.

13. A fan, the fan comprising:

A fan body; and

The oscillating mechanism according to any one of claims 1-12, wherein the fan is mounted on the support frame.