Oscillating mechanism with automatic correction function and fan thereof

Abstract

The utility model relates to a head shaking mechanism with an automatic correction function and a fan thereof, and belongs to the technical field of fans. The head shaking mechanism comprises a top support, a rotating support, a front shell, a head shaking rotating shaft, a head shaking connecting support, a head shaking motor and a driving gear, the head shaking connecting support is movably connected with the inner wall of the front shell, an arc sliding groove is formed in the head shaking connecting support, a driven rack is arranged on the inner side wall of the arc sliding groove, and the driving gear is arranged on an output shaft of the head shaking motor. When the driving gear drives the driven rack to rotate around the head shaking rotating shaft, the driven rack drives the front shell to rotate around the head shaking rotating shaft at the same time through the head shaking connecting support, and the driven rack drives the front shell to rotate around the head shaking rotating shaft at the same time. Therefore, the front shell can rotate relative to the top support in a head shaking mode. The oscillating mechanism works smoothly, the probability of jamming and abnormal sound is reduced, and the service life of the fan is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and particularly relates to a shaking head mechanism with an automatic correction function and a fan thereof. Background Art

[0002] Fans widely use gear shaking structures to achieve up and down shaking and rotation. The existing gear shaking structure is generally installed in the fan head, and the gear shaking structure includes a motor bracket, a shaking motor, a driving gear, a driven gear, and a fan head housing. The driving gear is installed on the motor shaft, the shaking motor is fixed on the motor bracket, the driving gear and the driven gear are meshed with each other through teeth, and the driven gear is fixed on the fan head housing. The working process is: when the shaking motor rotates, the driving gear drives the driven gear to rotate through the tooth meshing, and the fan head housing is linked with the driven gear to realize the up and down cyclic rotation of the fan head housing relative to the motor bracket. Because the fan head structure has many matching parts, the accumulated tolerances will cause the meshing rotation of the driving gear and the driven gear to be not smooth, jamming, and the meshing degree to deteriorate, which increases the probability of abnormalities such as shaking of the fan head housing, jamming, and abnormal noise, and accelerates the wear of the motor shaft, reducing the service life of the fan. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an oscillating mechanism and a fan thereof with an automatic correction function, so that the oscillating mechanism can work smoothly, the probability of jamming and abnormal noise can be reduced, and the service life of the fan can be extended.

[0004] The utility model is implemented in this way, providing a shaking mechanism with automatic correction function, including a top bracket, a rotating bracket, a front shell and a shaking shaft, the lower end of the rotating bracket is fixed on the top bracket, and a bracket through hole is arranged at the lower part of the front shell, the rotating bracket extends from the bracket through hole to the interior of the front shell, and the lower part of the front shell is rotatably connected with the top bracket through the shaking shaft, the shaking mechanism also includes a shaking connecting bracket, a shaking motor and a driving gear arranged inside the front shell, the shaking connecting bracket is movably connected to the inner wall of the front shell, an arc groove is arranged on the shaking connecting bracket, a driven rack is arranged on the inner side wall of the arc groove, the driving gear is arranged on the output shaft of the shaking motor, the driving gear and the driven rack are meshed with each other, the driving gear is limited by the arc groove and can only rotate back and forth along the direction of the driven rack, and the axis of the arc groove is arranged to be the same as the axis of the shaking shaft.

[0005] Furthermore, a first through hole and a second through hole are respectively arranged on the shaking head connecting bracket, the first through hole is located at the left end of the shaking head connecting bracket, and the second through hole is located at the right end of the shaking head connecting bracket. Correspondingly, a first screw column and a second screw column are arranged on the inner wall of the front shell body, the height of the first screw column is greater than the depth of the first through hole matched therewith, and the outer diameter of the first screw column is smaller than the inner diameter of the first through hole, the height of the second screw column is greater than the depth of the second through hole matched therewith, and the outer diameter of the second screw column is smaller than the inner diameter of the second through hole, a first bolt is arranged in the first screw column, and a second bolt is arranged in the second screw column, and the first screw column and the first through hole, as well as the second screw column and the second through hole, are movably fitted together.

[0006] Furthermore, a first soft rubber ring is arranged between the first screw column and the first through hole, and the first soft rubber ring is sleeved on the first screw column.

[0007] Furthermore, a second soft rubber ring is arranged between the second screw column and the second through hole, and the second soft rubber ring is sleeved on the second screw column.

[0008] Furthermore, an intermediate groove is also provided on the shaking head connecting bracket, and the intermediate groove is located at the right end of the shaking head connecting bracket and below the second through hole. Correspondingly, an intermediate column is provided on the inner wall of the front shell, and the height of the intermediate column is smaller than the depth of the intermediate groove matched therewith, and the outer diameter of the intermediate column is smaller than the inner diameter of the intermediate groove, and the intermediate column and the intermediate groove are movably matched.

[0009] Furthermore, a third soft rubber ring is arranged between the middle column and the middle groove, and the third soft rubber ring is sleeved on the middle column.

[0010] Furthermore, a shell connector is provided on the front shell, the shell connector is fixed to the lower part of the front shell, the bracket through hole is provided on the shell connector, and the shell connector is rotatably connected with the top bracket through a shaking shaft.

[0011] Furthermore, the rotating bracket is made of iron.

[0012] The utility model is implemented in this way, and also provides a fan, on which the shaking head mechanism with automatic correction function as mentioned above is used.

[0013] Compared with the prior art, the utility model has an oscillating mechanism with automatic correction function and its fan, the oscillating mechanism includes a top bracket, a rotating bracket, a front shell and an oscillating shaft, and an oscillating connecting bracket, an oscillating motor and a driving gear arranged inside the front shell, the oscillating connecting bracket is movably connected to the inner wall of the front shell, an arc groove is arranged on the oscillating connecting bracket, a driven rack is arranged on the inner wall of the arc groove, the driving gear and the driven rack are meshed with each other on the output shaft of the oscillating motor where the driving gear is arranged, the driving gear is limited by the arc groove and can only reciprocate along the direction of the driven rack, the axis of the arc groove is arranged to be the same as the axis of the oscillating shaft, when the driving gear drives the driven rack to rotate around the oscillating shaft, the driven rack drives the front shell to rotate around the oscillating shaft at the same time through the oscillating connecting bracket, so as to realize the oscillating rotation of the front shell relative to the top bracket. The oscillating mechanism of the utility model works smoothly, reduces the probability of jamming and abnormal noise, and prolongs the service life of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the fan of the utility model;

[0015] Figure 2 for Figure 1 A three-dimensional schematic diagram from another angle;

[0016] Figure 3 for Figure 1 or Figure 5 Schematic cross-section of the middle MM;

[0017] Figure 4 for Figure 3 Schematic cross-section of the NN;

[0018] Figure 5 for Figure 3 Schematic diagram of the cross section of the PP;

[0019] Figure 6 for Figure 4 Enlarged schematic diagram of the middle S part;

[0020] Figure 7 for Figure 5 A three-dimensional schematic diagram of the middle shaking head connecting bracket;

[0021] Figure 8 for Figure 5 A three-dimensional schematic diagram of the center front shell. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] Please refer to Figure 1 as well as Figure 2 1 is a three-dimensional schematic diagram of an embodiment of a fan of the utility model, in which an oscillating mechanism with an automatic correction function of the utility model is used.

[0024] Please also refer to Figures 3 to 6 As shown, a preferred embodiment of the shaking head mechanism with automatic correction function of the utility model includes a top bracket 1, a rotating bracket 2, a front shell 3 and a shaking head shaft 4, as well as a shaking head connecting bracket 5, a shaking head motor 6 and a driving gear 7 arranged inside the front shell 3.

[0025] The lower end of the rotating bracket 2 is fixed on the top bracket 1, and a bracket through hole 31 is provided at the lower part of the front shell 3. Figure 8 As shown. The rotating bracket 2 extends from the bracket through hole 31 to the interior of the front shell 3, and the lower part of the front shell 3 is rotatably connected to the top bracket 1 through the shaking shaft 4. The shaking connecting bracket 5 is movably connected to the inner wall of the front shell 3. The movable connection is a movable connection that is not easy to loosen. An arc groove 51 is provided on the shaking connecting bracket 5, and a driven rack 52 is provided on the inner side wall of the arc groove 51, and a driving gear 7 is provided on the output shaft of the shaking motor 6. The driving gear 7 and the driven rack 52 are meshed with each other, and the driving gear 7 is limited by the arc groove 51 and can only rotate back and forth in the direction of the driven rack 52. The axis of the arc groove 51 is set to be the same as the axis of the shaking shaft 4.

[0026] Please also refer to Figures 4 to 7 As shown, a driven rack 52 is provided on the upper side wall of the arc chute 51. As required, a driven rack 52 can also be provided on the lower side wall of the arc chute 51, or driven racks 52 can also be provided on both the upper and lower side walls of the arc chute 51.

[0027] When the driving gear 7 drives the driven rack 52 to rotate around the oscillating shaft 4, the driven rack 52 drives the front housing 3 to rotate around the oscillating shaft 4 through the oscillating connecting bracket 5, so as to realize the up and down oscillating rotation of the front housing 3 relative to the top bracket 1. Under the condition that the axis of the arc slide 51 is coaxial with the axis of the oscillating shaft 4, the oscillating connecting bracket 5 drives the front housing 3 to oscillate smoothly around the oscillating shaft 4 with good stability. If the coaxiality of the two is worse, the oscillating rotation of the front housing 3 around the oscillating shaft 4 will be more stuck, less smooth, and less stable.

[0028] Please refer to Figures 4 to 8As shown, the first through hole 53, the second through hole 54 and the middle groove 55 are respectively provided on the oscillating connection bracket 5, the first through hole 53 is located at the left end of the oscillating connection bracket 5, the second through hole 54 and the middle groove 55 are simultaneously located at the right end of the oscillating connection bracket 5, and the middle groove 55 is located below the second through hole 54. Correspondingly, the first screw column 32, the second screw column 33 and the middle column 34 are provided on the inner wall of the front shell 3. The height of the first screw column 32 is greater than the depth of the first through hole 53 matched therewith, and the outer diameter of the first screw column 32 is smaller than the inner diameter of the first through hole 53. The height of the second screw column 33 is greater than the depth of the second through hole 54 matched therewith, and the outer diameter of the second screw column 33 is smaller than the inner diameter of the second through hole 54. The height of the middle column 34 is smaller than the depth of the middle groove 55 matched therewith, and the outer diameter of the middle column 34 is smaller than the inner diameter of the middle groove 55.

[0029] A first bolt 35 is provided in the first screw column 32, and a second bolt 36 is provided in the second screw column 33. The oscillating connection bracket 5 is movably mounted on the inner wall of the front shell 3 by the first bolt 35 and the second bolt 36, which not only prevents the oscillating connection bracket 5 from falling off from the inner wall of the front shell 3, but also allows space for adjusting the position of the oscillating connection bracket 5 on the inner wall of the front shell 3. The intermediate column 34 and the intermediate groove 55 are provided to increase the connection stability between the oscillating connection bracket 5 and the front shell 3. The first screw column 32 and the first through hole 53, the second screw column 33 and the second through hole 54, and the intermediate column 34 and the intermediate groove 55 are movably matched respectively to realize the oscillating connection between the oscillating connection bracket 5 and the inner wall of the front shell 3.

[0030] When the oscillating connecting bracket 5 is movably connected to the inner wall of the front shell body 3, when the oscillating connecting bracket 5 drives the front shell body 3 to oscillate around the oscillating rotating shaft 4, the position of the oscillating connecting bracket 5 is automatically adjusted, so that the axis of the arc slide groove 51 and the axis of the oscillating rotating shaft 4 are automatically corrected to be coaxial, so that the oscillating connecting bracket 5 drives the front shell body 3 to oscillate around the oscillating rotating shaft 4 smoothly with good stability, thereby reducing the probability of jamming and abnormal noise, and extending the service life of the fan.

[0031] A first soft rubber ring 10 is arranged between the first screw column 32 and the first through hole 53, and the first soft rubber ring 10 is sleeved on the first screw column 32. A second soft rubber ring 8 is arranged between the second screw column 33 and the second through hole 54, and the second soft rubber ring 8 is sleeved on the second screw column 33. A third soft rubber ring 9 is arranged between the middle column 34 and the middle groove 55, and the third soft rubber ring 9 is sleeved on the middle column. The first soft rubber ring 10, the second soft rubber ring 8 and the third soft rubber ring 9 are made of soft materials such as rubber and polyurethane. The first soft rubber ring 10, the second soft rubber ring 8 and the third soft rubber ring 9 are arranged so that a certain buffering effect is provided to the shaking head connecting bracket 5 during the process of adjusting the position of the shaking head connecting bracket 5 and the inner wall of the front shell 3.

[0032] Please refer to Figures 1 to 5 As shown, a housing connector 11 is provided on the front housing 3, and the housing connector 11 is fixed to the lower part of the front housing 3 by housing screws. A bracket through hole 31 is provided on the housing connector 11, and the housing connector 11 is rotatably connected to the top bracket 1 through the oscillating shaft 4.

[0033] The rotating bracket 2 is made of iron. Because the rotating bracket 2 needs to withstand a large rotation torque when the oscillating connecting bracket 5 drives the front housing 3 to rotate around the axis of the oscillating rotating shaft 4, the strong metal material such as iron can meet the strength requirement of the rotation torque.

[0034] Please refer to Figures 1 to 5 , Figure 8 As shown, the utility model also discloses a fan, wherein the aforementioned oscillating mechanism with automatic correction function is used on the fan A. The fan A is provided with a housing 12 outside the front housing 3 of the oscillating mechanism, the housing connector 11 is located at the lower part of the housing 12, the top bracket 1 is located in the bracket through hole 31, the housing 12 constitutes the fan head of the fan A, and the fan head 11 oscillates and rotates up and down around the top bracket 1.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A shaking mechanism with automatic correction function, comprising a top bracket, a rotating bracket, a front shell and a shaking shaft, wherein the lower end of the rotating bracket is fixed to the top bracket, a bracket through hole is arranged at the lower part of the front shell, the rotating bracket extends from the bracket through hole to the inside of the front shell, and the lower part of the front shell is rotatably connected with the top bracket through the shaking shaft, characterized in that: The shaking head mechanism also includes a shaking head connecting bracket, a shaking head motor and a driving gear arranged inside the front shell body. The shaking head connecting bracket is movably connected to the inner wall of the front shell body. An arc groove is arranged on the shaking head connecting bracket. A driven rack is arranged on the inner side wall of the arc groove. The driving gear is arranged on the output shaft of the shaking head motor. The driving gear and the driven rack are meshed with each other. The driving gear is limited by the arc groove and can only rotate back and forth along the direction of the driven rack. The axis of the arc groove is arranged to be the same as the axis of the shaking head shaft.

2. The shaking head mechanism with automatic correction function as claimed in claim 1, characterized in that: A first through hole and a second through hole are respectively arranged on the shaking head connecting bracket, the first through hole is located at the left end of the shaking head connecting bracket, and the second through hole is located at the right end of the shaking head connecting bracket. Correspondingly, a first screw column and a second screw column are arranged on the inner wall of the front shell body, the height of the first screw column is greater than the depth of the first through hole matched therewith, and the outer diameter of the first screw column is smaller than the inner diameter of the first through hole, the height of the second screw column is greater than the depth of the second through hole matched therewith, and the outer diameter of the second screw column is smaller than the inner diameter of the second through hole, a first bolt is arranged in the first screw column, and a second bolt is arranged in the second screw column, and the first screw column and the first through hole, as well as the second screw column and the second through hole, are movably fitted together.

3. The shaking head mechanism with automatic correction function as claimed in claim 2, characterized in that: A first soft rubber ring is arranged between the first screw column and the first through hole, and the first soft rubber ring is sleeved on the first screw column.

4. The shaking head mechanism with automatic correction function as claimed in claim 2, characterized in that: A second soft rubber ring is arranged between the second screw column and the second through hole, and the second soft rubber ring is sleeved on the second screw column.

5. The shaking head mechanism with automatic correction function as claimed in claim 2, characterized in that: An intermediate groove is also provided on the shaking head connecting bracket, and the intermediate groove is located at the right end of the shaking head connecting bracket and below the second through hole. Correspondingly, an intermediate column is provided on the inner wall of the front shell, and the height of the intermediate column is smaller than the depth of the intermediate groove matched therewith, and the outer diameter of the intermediate column is smaller than the inner diameter of the intermediate groove, and the intermediate column and the intermediate groove are movably matched.

6. The shaking head mechanism with automatic correction function as claimed in claim 5, characterized in that: A third soft rubber ring is arranged between the middle column and the middle groove, and the third soft rubber ring is sleeved on the middle column.

7. The shaking mechanism with automatic correction function as claimed in claim 1, characterized in that: A shell connecting piece is arranged on the front shell, the shell connecting piece is fixed on the lower part of the front shell, the bracket through hole is arranged on the shell connecting piece, and the shell connecting piece is rotatably connected with the top bracket through a shaking shaft.

8. The shaking mechanism with automatic correction function as claimed in claim 1, characterized in that: The rotating bracket is made of iron.

9. A fan, characterized in that: The fan is provided with an oscillating mechanism with an automatic correction function as claimed in any one of claims 1 to 8.

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