CN111637084A

CN111637084A - Oscillating mechanism and electrical equipment with same

Info

Publication number: CN111637084A
Application number: CN202010584681.6A
Authority: CN
Inventors: 徐余良; 赵文杰; 刘哲; 陈绍华
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2020-09-08

Abstract

The invention relates to a head shaking mechanism and electrical equipment provided with the same, wherein the head shaking mechanism comprises: a base having a bearing surface; the pressing plate is matched and connected with one side of the base, which is provided with a bearing surface, and a limit gap is defined between the pressing plate and the bearing surface; the bracket is supported on the bearing surface, and the edge of the bracket is limited in the limiting gap; the power assembly is arranged on the bracket and is connected to the base in a transmission manner, and the power assembly is used for driving the bracket to rotate relative to the base; wherein, one of the base and the support is provided with a shaft hole, the other of the base and the support is provided with a rotating shaft matched with the shaft hole, and the rotating shaft is rotatably inserted in the shaft hole. Above-mentioned mechanism of shaking head, the support of mechanism of shaking head is rotationally spacing in the base in radial direction through the pivot of locating support or base, and need not additionally to set up panel beating hub connection support and base to the part quantity of mechanism of shaking head has been reduced. Moreover, the edge of the bracket is limited in the limit gap, so that the bracket and the base have larger axial limit diameters.

Description

Oscillating mechanism and electrical equipment with same

Technical Field

The invention relates to the technical field of household appliances, in particular to a head shaking mechanism and an electric appliance with the same.

Background

Along with the improvement of science and technology and the improvement of living standard, the requirement of people on the comfort level of the home environment is higher and higher, the tower fan is also named as a mansion fan, the shape of the tower fan is fine and tall and straight, the space is saved, the cross-flow wind wheel is adopted, the blown airflow is a three-dimensional airflow wall, the air supply is mild and very close to natural wind, and the air outlet grid of the tower fan is small, so that children can be prevented from being accidentally injured, and the tower fan is more and more popular with consumers.

In order to realize shaking the head and sweep the wind function, some tower fans are equipped with and are used for driving the relative chassis pivoted mechanism of shaking the head of main fuselage, and the mechanism of shaking the head includes that the rigid coupling shakes the head support and the rigid coupling in the base of shaking the head of main fuselage, and the support of shaking the head and the base of shaking the head are by panel beating axle rotatable coupling, and the support of shaking the head through motor drive is shaken the head and is rotated the base relatively, and then drives the rigid coupling and rotate in the relative chassis of main fuselage of the support of shaking the head to realize shaking the head and sweep the function of wind.

However, the spare part that constitutes above-mentioned mechanism of shaking the head is more, and the production efficiency of the mechanism of shaking the head is lower and the cost is higher, leads to having the clearance between the two through panel beating axle interconnect support and base moreover to the radial spacing not enough problem of support appears, and then the host computer body that leads to the tower fan is great at the volume of rocking of the in-process of shaking the head, influences user's use and experiences.

Disclosure of Invention

Therefore, it is necessary to provide a head shaking mechanism capable of achieving effective radial limit and an electrical device provided with the head shaking mechanism, aiming at the problem that the head shaking mechanism has insufficient radial limit.

An oscillating mechanism, the oscillating mechanism comprising:

a base having a bearing surface;

the pressing plate is matched and connected with one side of the base, which is provided with the bearing surface (1212), and a limit gap which extends along the edge circumference of the bearing surface is defined between the pressing plate and the bearing surface; and

the bracket is supported on the bearing surface, and the edge of the bracket is limited in the limiting gap;

the power assembly is arranged on the bracket and is connected to the base in a transmission manner, and the power assembly is used for driving the bracket to rotate relative to the base;

the power assembly comprises a base, a support and a power assembly, wherein one of the base and the support is provided with a shaft hole, the other of the base and the support is provided with a rotating shaft matched with the shaft hole, the rotating shaft is rotatably inserted into the shaft hole, and the support can be driven by the power assembly to rotate relative to the base by taking the rotating shaft as a rotating center.

In one embodiment, the bracket comprises a bracket main body and a flange edge circumferentially surrounding one end of the bracket main body, the flange edge is located in the limiting gap, and the pressing plate is sleeved outside one end of the bracket main body, which is not provided with the flange edge.

In one embodiment, the rotating shaft is protruded from an end surface of the bracket main body at the end provided with the flange edge.

In one embodiment, the base includes a base main body and a base limiting member disposed at an edge of one end of the base main body, the pressing plate includes a pressing plate main body and a pressing plate limiting member disposed at an edge of one end of the pressing plate main body, the base limiting member and the pressing plate limiting member abut against each other in a direction of a rotation axis of the bracket, and the pressing plate main body and the base main body define the limiting gap therebetween.

In one embodiment, the pressing plate limiting part includes a pressing plate supporting part and a pressing plate buckling part, the pressing plate supporting part and the pressing plate buckling part are arranged at opposite ends of the pressing plate limiting part at intervals in the rotation axis direction of the bracket, and the pressing plate supporting part and the pressing plate buckling part respectively abut against opposite sides of the base limiting part in the rotation axis direction of the bracket.

In one embodiment, the base limiting member includes a base supporting portion and a base fastening portion, the base supporting portion extends along a circumferential direction of the base main body, and the base fastening portion is connected to one end of the base supporting portion in an extending direction and is located on one side of the base supporting portion away from the bearing surface; the pressing plate supporting part is supported on one side, far away from the bearing surface, of the base supporting part, and the pressing plate buckling part abuts against one side, facing the bearing surface, of the base buckling part.

In one embodiment, the base limiting member has a first connecting hole, the pressing plate supporting member has a second connecting hole correspondingly connected to the first connecting hole, and the oscillating mechanism further includes a connecting member inserted into the first connecting hole and the second connecting hole along the rotation axis of the bracket.

In one embodiment, the power assembly includes a driving unit and a transmission unit, the driving unit is fixedly connected to the bracket, and the driving unit is connected to the base through the transmission unit in a transmission manner.

In one embodiment, the bracket is provided with an arc-shaped groove, the base is provided with a rocker with one end extending into the arc-shaped groove, the transmission unit comprises a crank and a connecting rod, one end of the crank is fixedly connected to an output shaft of the transmission unit, the other end of the crank is rotatably connected to one end of the connecting rod, the other end of the connecting rod is rotatably connected to the rocker, and the rocker can slide back and forth along the arc-shaped groove.

An electrical equipment comprises the oscillating mechanism.

In one embodiment, the electrical equipment further comprises a supporting chassis and a main body, the supporting chassis is fixedly connected with the base of the head shaking mechanism, and the main body is fixedly connected with the support of the head shaking mechanism and can synchronously rotate along with the support.

In one embodiment, the electrical device is a tower fan.

Above-mentioned mechanism of shaking head, the support of mechanism of shaking head is rotationally spacing in the base in radial direction through the pivot of locating support or base, and need not additionally to set up panel beating hub connection support and base to the part quantity of mechanism of shaking head has been reduced. Moreover, because the edge of the bracket is limited in the limit gap, the bracket and the base have larger axial limit diameters, thereby effectively reducing the shaking amount of the main body of the electrical equipment provided with the oscillating mechanism relative to the support chassis.

Drawings

FIG. 1 is an assembly view of a pan mechanism according to one embodiment of the present invention;

fig. 2 is an exploded view of the oscillating mechanism of fig. 1;

fig. 3 is a schematic structural view of a base of the oscillating mechanism shown in fig. 1;

FIG. 4 is a schematic view showing the structure of a pressing plate of the oscillating mechanism shown in FIG. 1;

fig. 5 is a schematic structural view of a carriage of the oscillating mechanism shown in fig. 1.

Description of reference numerals:

100. a head shaking mechanism; 10. a base; 12. a base body; 121. a base bottom wall; 1212. a bearing surface; 1214. a shaft hole; 1216. a rocker; 123. a base sidewall; 125. base support legs; 14. a base limit piece; 141. a base support; 1412. a first connection hole; 143. a base fastening part; 30. pressing a plate; 32. a platen body; 34. a pressing plate limiting part; 341. a platen support portion; 3412. a second connection hole; 343. a pressing plate buckling part; 50. a support; 52. a stent body; 521. an arc-shaped slot; 54. a rotating shaft; 56. a flange edge; 70. a shaft sleeve; 90. a power assembly; 92. a drive unit; 921. an output shaft; 94. a transmission unit; 941. a crank; 943. a connecting rod.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

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

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" 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 as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, in an electrical apparatus (not shown) provided with an oscillating mechanism 100 according to an embodiment of the present invention, the oscillating mechanism 100 is used for driving a structure coupled thereto to rotate relatively. Next, the structure of the oscillating mechanism 100 according to the present invention will be described by taking an electric appliance as a tower fan as an example. The following examples are given by way of illustration only and are not intended to limit the scope of the present application. It is understood that in other embodiments, the electric device may also be embodied as other devices equipped with the oscillating mechanism 100, such as a cooling and heating fan, an electric heater, etc., without limitation.

The tower fan is including supporting chassis, main fuselage and the mechanism 100 of shaking the head, supports the chassis and mainly plays support and fixed effect, and main fuselage is installed in supporting the chassis, and main fuselage is used for forming the air current and carries the air current to external environment, and the mechanism 100 transmission connection support chassis and main fuselage of shaking the head, and the mechanism 100 of shaking the head is used for driving main fuselage and supports the chassis relatively and rotate to the function of sweeping the wind of shaking the head is realized. It should be noted that, since the specific structure of the supporting chassis and the main body does not belong to the main invention of the present application, it is not described herein.

As shown in fig. 1 and fig. 2, the oscillating mechanism 100 includes a base 10, a pressing plate 30 and a support 50 capable of rotating around a rotation axis relative to the base 10, the base 10 is fixedly connected to a supporting chassis of the tower fan, the support 50 is fixedly connected to a main body of the electrical equipment, and the main body can rotate synchronously with the support 50 to realize the oscillating and sweeping functions of the tower fan.

As shown in fig. 1, 2 and 3, specifically, the base 10 includes a base main body 12 and a base stopper 14. The base body 12 is a substantially circular-cross-section rotor-like structure, and includes a base bottom wall 121, a base side wall 123, and base support legs 125 that are integrally formed. The cross section of the base bottom wall 121 is circular, a bearing surface 1212 for bearing the bracket 50 is formed on an end surface of one side of the base bottom wall 121, a shaft hole 1214 communicating with the bearing surface 1212 is formed in the center of the base bottom wall 121, and the shaft hole 1214 is used for being coupled with the bracket 50. The base sidewall 123 extends from an edge of the base bottom wall 121 in a direction away from the bearing surface 1212 and circumferentially surrounds the base bottom wall 121. The base support legs 125 are circumferentially spaced from the base sidewall 123, and each base support leg 125 extends in a direction away from the bearing surface 1212 until extending beyond the base sidewall 123 to connect to the support chassis. The base stoppers 14 are circumferentially spaced at the edge of the base bottom wall 121, and each base stopper 14 protrudes out of the bearing surface 1212 in the axial direction of the base 10 to mate with the pressing plate 30.

As shown in fig. 1, 2, and 4, the platen 30 includes a platen main body 32 and a platen stopper 34. The pressing plate main body 32 is substantially annular, the outer diameter of the pressing plate main body 32 is substantially equal to the outer diameter of the base bottom wall 121, and the plurality of pressing plate limit parts 34 are circumferentially arranged at the edge of the pressing plate main body 32 at intervals. When the pressing plate 30 is coupled to one side of the base 10 having the bearing surface 1212, the pressing plate limiting part 34 abuts against the base limiting part 14 in the direction of the rotation axis of the bracket 50, the pressing plate main body 32 and the base main body 12 are disposed at an interval, a limiting gap for limiting the bracket 50 is defined between the pressing plate main body 32 and the bearing surface 1212 of the base main body 12, and the limiting gap extends along the edge circumference of the bearing surface 1212 because the pressing plate main body 32 is in a ring-shaped structure with an outer diameter substantially equal to the base bottom wall 121.

Specifically, in some embodiments, each of the base position-limiting members 14 includes a base supporting portion 141 and a base engaging portion 143, the base supporting portion 141 extends along the circumferential direction of the base main body 12 and is curved into an arc shape, the base engaging portion 143 is connected to one end of the base supporting portion 141 in the extending direction and is located on one side of the base supporting portion 141 away from the base bottom wall 121, and the thickness of the base engaging portion 143 in the rotation axis direction of the bracket 50 is smaller than that of the base supporting portion 141 in the rotation axis direction of the bracket 50. Each of the pressure plate limiting members 34 includes a pressure plate supporting portion 341 and a pressure plate buckling portion 343, the pressure plate supporting portion 341 extends along the circumferential direction of the pressure plate main body 32 and is curved into an arc shape, the pressure plate buckling portion 343 is connected to one end of the pressure plate supporting portion 341 in the extending direction, and the pressure plate supporting portion 341 and the pressure plate buckling portion 343 are disposed at two opposite ends of the pressure plate limiting member 34 at intervals in the rotation axis direction of the bracket 50.

When the pressing plate 30 is mounted on the side of the base 10 having the carrying surface 1212, the pressing plate supporting portion 341 is partially abutted against the upper end surface of the side of the base supporting portion 141 away from the carrying surface 1212, and then the pressing plate 30 is rotated along the circumferential direction of the base 10 to screw the pressing plate engaging portion 343 into the lower portion of the base engaging portion 143. Thus, the pressing plate supporting portion 341 is partially supported on the upper end surface of the side of the base supporting portion 141 away from the carrying surface 1212, and the pressing plate engaging portion 343 abuts against the lower end surface of the base engaging portion 143 facing the carrying surface 1212. Therefore, the pressing plate supporting portion 341 and the pressing plate engaging portion 343 are respectively abutted against opposite sides of the base limiting member 1434 in the rotation axis direction of the bracket 50, and the pressing plate 30 is fixed in the rotation axis direction of the bracket 50 relative to the base 10.

Furthermore, each base supporting portion 141 of the base position-limiting member 14 further has at least one first connection hole 1412, each pressing plate supporting portion 341 of the pressing plate position-limiting member 34 has a second connection hole 3412 correspondingly connected to the first connection hole 1412, and the head moving mechanism 100 further includes a connection member inserted into the first connection hole 1412 and the second connection hole 3412 along the rotation axis direction of the bracket 50. In this way, the base 10 and the pressing plate 30 are limited in the circumferential direction by the connecting member, so that the pressing plate engaging portion 343 and the base engaging portion 143 are prevented from being separated due to the relative rotation of the base 10 and the pressing plate 30. Preferably, in one embodiment, the first connection hole 1412 and the second connection hole 3412 are both threaded holes, and the connector is a screw matched with the threaded hole.

Specifically, in some embodiments, the base 10 includes four base position-limiting members 14, the pressing plate 30 includes four pressing plate position-limiting members 34, and each base position-limiting member 14 is coupled to one pressing plate position-limiting member 34. It can be understood that the number of the base position-limiting elements 14 and the pressure plate position-limiting elements 34 is not limited thereto, and different numbers of the base position-limiting elements 14 and the pressure plate position-limiting elements 34 can be set as required to meet different requirements.

As shown in fig. 1, 2 and 5, the bracket 50 includes a bracket main body 52, a rotation shaft 54 and a flange 56 which are integrally formed. The bracket main body 52 is a substantially circular-cross-section solid of revolution, the cylindrical rotating shaft 54 is convexly disposed in the middle of one side end face of the bracket main body 52 facing the base 10, the flange 56 circumferentially surrounds one end of the bracket main body 52 close to the base 10, and the outer diameter of the flange 56 is not greater than the outer diameter of the base bottom wall 121.

When the bracket 50 is mounted on the base 10, the shaft 54 is inserted into the shaft hole 1214 through the shaft sleeve 70, so that the bracket 50 can rotate relative to the base 10 with the shaft 54 as a rotation center. Meanwhile, the pressing plate 30 is sleeved outside the bracket body 52, the flange 56 surrounding the bracket body 52 is limited in a limiting gap defined between the pressing plate 30 and the base 10, and two end surfaces of the flange 56 in the axial direction respectively abut against the bearing surface 1212 of the base bottom wall 12 and the pressing plate body 32, so that the bracket 50 is firmly limited on the base 10 in the direction of the rotation axis.

In this way, the bracket 50 is rotatably limited on the base 10 in the radial direction by integrally providing the rotating shaft 54 with the bracket main body 52, and there is no need to additionally provide a sheet metal shaft to connect the bracket 50 and the base 10. Moreover, because the edge of the bracket 50 is limited in the limit gap, the bracket 50 and the base 10 have larger axial limit diameters, thereby effectively reducing the shaking amount of the main body relative to the supporting chassis.

It is understood that in other embodiments, the shaft hole 1214 may be opened on the bracket body 52, the shaft 54 protrudes on the bearing surface 1212 of the base 10, and the shaft 54 is rotatably inserted in the shaft hole 1214.

Referring to fig. 1 and fig. 2, further, the oscillating mechanism 100 further includes a power assembly 90, wherein the power assembly 90 is mounted on the bracket 50 and is connected to the base 10 in a transmission manner, and is used for driving the bracket 50 to rotate relative to the base 10, so as to realize the oscillating function of the oscillating mechanism 100.

Specifically, the power assembly 90 includes a driving unit 92 and a transmission unit 94, the driving unit 92 is fixedly connected to the bracket 50, the driving unit 92 is in transmission connection with the base 10 through the transmission unit 94, and the driving unit 92 drives the base 10 and the bracket 50 to move relatively through the transmission unit 94. Since the base 10 is fixed to the support chassis in a stationary state, the stand 50 rotates relative to the rotating base 10.

Specifically, in some embodiments, the drive unit 92 is an electric motor having an output shaft 921 for outputting torque. The bracket main body 52 is provided with an arc-shaped slot 521 in a penetrating manner, and the circle center of the arc-shaped slot 521 coincides with the circle of the shaft hole 1214. The bearing surface 1212 of the bottom wall 121 of the base 10 is provided with a cylindrical rocker 1216 positioned at one side of the axial hole 1214, and one end of the cylindrical rocker 1216 away from the bearing surface 1212 extends into the arc-shaped groove 521 of the bracket main body 52. The transmission unit 94 includes a crank 941 and a connecting rod 943, one end of the crank 941 is fixed to the output shaft 921 of the driving unit 92, the other end of the crank 941 is rotatably connected to one end of the connecting rod 943, the other end of the connecting rod 943, which is not connected to the crank 941, is rotatably connected to the rocker 1216, and the rocker 1216 can slide back and forth along the arc-shaped slot 521.

Thus, when the output shaft 921 of the driving unit 92 rotates, the crank 941 rotates around the output shaft 921 as the rotation center under the driving of the output shaft 921, and the connecting rod 943 connected to the other end of the crank 941 is limited to the connecting rocker 1216 and can only rotate around the connecting rocker 1216, and the bracket 50 is connected to the connecting rocker 1216 through the arc-shaped slot 521, so that the crank 941 drives the bracket 50 to rotate relative to the base 10 through the driving unit 92, thereby realizing the shaking function of the shaking mechanism 100. It is to be understood that the specific configuration of the transmission unit 94 is not limited thereto, and may be set as needed to meet various requirements.

In the head shaking mechanism 100 and the electrical equipment provided with the head shaking mechanism 100, the rotating shaft 54 integrally arranged with the bracket main body 52 is directly inserted into the shaft hole 1214 of the base 10 so as to be rotatably connected with the shaft hole 1214, and an additional sheet metal shaft is not required to be arranged to connect the bracket main body 52 with the base 10, so that the number of parts is simplified. Moreover, the edge of the bracket 50 is axially limited in the limit gap formed by the base 10 and the pressing plate 30, so that the axial limit diameter of the bracket 50 and the base 10 is enlarged, the main body of the electrical equipment is effectively prevented from shaking relative to the supporting chassis, and the stability of the electrical equipment in the use process is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a mechanism of shaking head which characterized in that, the mechanism of shaking head includes:

a base (10) having a bearing surface (1212);

the pressure plate (30) is matched and connected to one side, provided with the bearing surface (1212), of the base (10), and a limit gap extending along the circumferential direction of the edge of the bearing surface (1212) is defined between the pressure plate (30) and the bearing surface (1212); and

the bracket (50) is supported on the bearing surface (1212), and the edge of the bracket (50) is limited in the limiting gap;

the power assembly (90) is arranged on the bracket (50) and is connected to the base (10) in a transmission manner, and the power assembly (90) is used for driving the bracket (50) to rotate relative to the base (10);

one of the base (10) and the bracket (50) is provided with a shaft hole (1214), the other one of the base (10) and the bracket (50) is provided with a rotating shaft (54) matched with the shaft hole (1214), the rotating shaft (54) is rotatably inserted into the shaft hole (1214), and the bracket (50) can rotate relative to the base (10) by taking the rotating shaft (54) as a rotating center under the driving of the power assembly (90).

2. An oscillating mechanism according to claim 1, characterized in that said carriage (50) comprises a carriage body (52) and a flange (56) circumferentially surrounding one end of said carriage body (52), said flange (56) being limited in said limiting gap, said pressure plate (30) being sleeved outside the end of said carriage body (52) not provided with said flange (56).

3. A moving head mechanism according to claim 2, characterized in that said turning shaft (54) protrudes from the end surface of the end of said holder body (52) where said flange (56) is provided.

4. A moving head mechanism according to claim 1, characterized in that said base (10) comprises a base body (12) and a base limit piece (14) disposed at one end edge of said base body (12), said pressing plate (30) comprises a pressing plate body (32) and a pressing plate limit piece (34) disposed at one end edge of said pressing plate body (32), said base limit piece (14) and said pressing plate limit piece (34) abut against each other in the direction of the rotation axis of said support (50), and said limit gap is defined between said pressing plate body (32) and said base body (12).

5. The oscillating mechanism according to claim 4, wherein said pressing plate limiting member (34) comprises a pressing plate supporting portion (341) and a pressing plate fastening portion (343), said pressing plate supporting portion (341) and said pressing plate fastening portion (343) are disposed at opposite ends of said pressing plate limiting member (34) at intervals in the direction of the rotation axis of said bracket (50), said pressing plate supporting portion (341) and said pressing plate fastening portion (343) are respectively abutted against opposite sides of said base limiting member (14) in the direction of the rotation axis of said bracket (50).

6. The oscillating mechanism according to claim 5, wherein said base limit piece (14) comprises a base support portion (141) and a base engaging portion (143), said base support portion (141) extending along the circumferential direction of said base main body (12), said base engaging portion (143) being connected to one end of said base support portion (141) in the extending direction and being located on the side of said base support portion (141) away from said bearing surface (1212); the pressing plate supporting portion (341) is partially supported on one side of the base supporting portion (141) far away from the bearing surface (1212), and the pressing plate buckling portion (343) is abutted against one side of the base buckling portion (143) facing the bearing surface (1212).

7. A moving head mechanism according to claim 5, characterized in that said base stopper (14) is provided with a first connecting hole (1412), said pressing plate supporting portion (341) is provided with a second connecting hole (3412) correspondingly communicating with said first connecting hole (1412), said moving head mechanism further comprises a connecting member, said connecting member is inserted into said first connecting hole (1412) and said second connecting hole (3412) along the direction of the rotation axis of said holder (50).

8. A rocking mechanism according to claim 1, characterized in that said power assembly (90) comprises a drive unit (92) and a transmission unit (94), said drive unit (92) being fast with said carriage (50), said drive unit (92) being drivingly connected to said base (10) via said transmission unit (94).

9. An oscillating mechanism according to claim 8 characterized in that said bracket (50) is provided with an arc-shaped slot (521), said base (10) is provided with a rocker (1216) having one end extending into said arc-shaped slot (521), said transmission unit (94) comprises a crank (941) and a connecting rod (943), one end of said crank (941) is fixedly connected to said output shaft (921) of said transmission unit (94), the other end of said crank (941) is rotatably connected to one end of said connecting rod (943), the other end of said connecting rod (943) is rotatably connected to said rocker (1216), said rocker (1216) can slide along said arc-shaped slot (521) in a reciprocating manner.

10. An electric appliance comprising a moving head mechanism according to any one of claims 1 to 9.

11. The electrical equipment of claim 10, further comprising a support chassis fixedly connected to the base (10) of the head shaking mechanism and a main body fixedly connected to the support (50) of the head shaking mechanism and capable of synchronously rotating along with the support (50).

12. The electrical apparatus of claim 10, wherein the electrical apparatus is a tower fan.