360-degree head swinging structure of fan blade

Abstract

The utility model provides a 360-degree head swinging structure of a fan blade. The 360-degree head swinging structure of the fan blade comprises a driving assembly arranged on a shell and a limiting assembly arranged on the other side of the shell. The limiting assembly comprises a crank seat fixed on the air duct, a first rotating shaft embedded in the support and a stop block clamped and embedded between the air duct and the first rotating shaft, a stop convex part embedded in the stop block is arranged on the first rotating shaft, and the stop convex part of the first rotating shaft is driven by the crank seat to abut against the inner wall of the stop block; therefore, the rotation angle of the shell is limited. According to the 360-degree swing head structure of the fan blade, the crank base drives the first rotating shaft to rotate relative to the support and enables the stop protruding part to abut against the inner wall of the stop block, and the driving assembly reversely drives the shell to drive the fan blade and the crank base to reversely rotate relative to the support. Therefore, the case is prevented from driving the fan blades to repeatedly and ceaselessly rotate by 360 degrees in the same clockwise or anticlockwise direction relative to the support, and the safety of the 360-degree head swinging structure of the fan blades is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and in particular relates to a 360-degree swing head structure of a fan blade. Background Art

[0002] The shell of the fan currently on the market drives the fan blades to rotate 360 ​​degrees relative to the bracket, usually in the same clockwise or counterclockwise direction, repeatedly rotating 360 degrees. This rotation method can easily cause wires to get entangled in the shell, or even cause wires to break, causing certain safety hazards. In addition, users can push the shell to rotate 360 ​​degrees at will, thereby damaging the entire structure of the fan and further causing safety hazards. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the existing fan that the shell drives the fan blades to rotate 360 ​​degrees relative to the bracket, usually in the same clockwise or counterclockwise direction, and the rotation mode of repeatedly rotating 360 degrees can easily cause wires to be entangled in the shell, and even cause the wires to break, causing certain safety hazards, and the user can push the shell at will. A 360-degree swing head structure of the fan blades and a manufacturing method thereof are provided.

[0004] The utility model solves the technical problem by adopting a technical solution: a 360-degree swing head structure of a fan blade, comprising a bracket and a shell rotatably connected to the bracket and used to install the fan blade, and also comprising a driving component arranged on one side of the shell for driving the shell to drive the fan blade to rotate relative to the bracket, and a limiting component arranged on the other side of the shell for limiting the rotation angle of the shell;

[0005] The shell is used to accommodate the air duct of the fan blade, and the limiting assembly includes a crank seat fixed on the air duct, a first rotating shaft embedded in the bracket, and a stop block clamped between the air duct and the first rotating shaft. The first rotating shaft is provided with a stop protrusion embedded in the stop block. The driving assembly drives the shell to drive the crank seat to rotate, and drives the stop protrusion of the first rotating shaft through the crank seat to abut against the inner wall of the stop block to limit the rotation angle of the shell.

[0006] Furthermore, the first rotating shaft includes a first mounting portion, a second mounting portion, and a connecting portion extending from the first mounting portion out of the crank seat and embedded in the bracket, and the stop protrusion extends from the first mounting portion toward the stop block and is embedded in the stop block.

[0007] Furthermore, the stop block includes a first arc portion and a second arc portion respectively used to abut against the first mounting portion and the second mounting portion of the first rotating shaft, and a limiting portion extending toward the stop block is provided on the air duct, and the stop block is embedded between the air duct and the first rotating shaft through the first arc portion, the second arc portion and the limiting portion on the air duct.

[0008] Furthermore, the stop block also includes an arc-shaped through hole in which the stop protrusion of the first rotating shaft can be embedded. The driving component drives the bracket to rotate the crank seat, and the stop protrusion of the first rotating shaft is abutted against the inner wall of the arc-shaped through hole of the stop block through the crank seat to limit the rotation angle of the shell.

[0009] Furthermore, a stop rib is provided in the crank seat, and the crank seat drives the stop rib to rotate and abut against the stop protrusion of the first rotating shaft, so that the stop protrusion abuts against the inner wall of the arc-shaped through hole of the stop block to limit the rotation angle of the shell.

[0010] Furthermore, the crank seat is provided with a first fixing hole for fixedly connecting with the air duct.

[0011] Furthermore, the driving assembly includes a driving motor fixedly connected to the air duct, a gear fixed on the output shaft of the driving motor, and a second rotating shaft fixedly connected to the bracket, and the second rotating shaft is provided with internal gear teeth for meshing with the gear for transmission.

[0012] Furthermore, the second rotating shaft includes a transmission part and a third mounting part extending from the transmission part toward the bracket, and the inner gear is arranged on an inner wall of the transmission part.

[0013] Furthermore, the third mounting portion of the second rotating shaft is provided with a fixing boss for being engaged and fixed with the bracket and a second fixing hole fixedly connected with the bracket.

[0014] Furthermore, the bracket is provided with a mounting groove into which the fixing boss on the third mounting portion of the second rotating shaft can be embedded.

[0015] The beneficial effects of the 360-degree swing head structure of a fan blade and its manufacturing method provided by the utility model are: by using the driving assembly to drive the housing to drive the fan blade and the crank seat to rotate, and by the crank seat to drive the first rotating shaft to rotate relative to the bracket and make the stop convex part abut against the inner wall of the stop block, the driving assembly can drive the housing to complete a 360-degree rotation in a single direction relative to the bracket, and effectively limit the rotation angle of the housing, and then the driving assembly drives the housing in the opposite direction to drive the fan blade and the crank seat to rotate in the opposite direction relative to the bracket, thereby avoiding the housing driving the fan blade to repeatedly rotate 360 ​​degrees in the same clockwise or counterclockwise direction relative to the bracket, thereby improving the safety of the 360-degree swing head structure of the fan blade. In addition, the limiting structure can effectively prevent the user from manually pushing the housing to make the housing rotate 360 ​​degrees, thereby ensuring the safety of the 360-degree swing head structure of the fan blade, and further avoiding safety hazards during user use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded schematic diagram of the overall structure of the 360-degree swing head structure of the fan blade provided by the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the limit assembly in the 360-degree swing head structure of the fan blade provided by the utility model;

[0018] Figure 3 It is an exploded cross-sectional view of a driving assembly in the 360-degree swing head structure of a fan blade provided by the utility model;

[0019] Figure 4 This is a cross-sectional view of the overall structure of the 360-degree swing head structure of the fan blade provided by the utility model;

[0020] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0021] Figure 6 for Figure 4 A partial enlarged view of point B in the middle;

[0022] Figure 7 It is a schematic diagram of the structure of the middle limit assembly of the 360-degree swing head structure of the fan blade provided by the utility model rotating 360 degrees clockwise and 360 degrees counterclockwise;

[0023] Figure 8 This is a schematic diagram of the assembly structure of the 360-degree swing head structure of the fan blade provided by the utility model.

[0024] In the figure:

[0025] 100-blade 360-degree swing head structure,

[0026] 10- bracket, 11- side bracket, 111- mounting slot, 12- lower bracket, 13- side plate, 20- housing,

[0027] 21- air duct, 211- limiting part, 22- upper decorative plate, 23- lower decorative plate, 24- air net,

[0028] 30-limiting assembly, 31-crank seat, 311-stop rib, 312-first fixing hole, 32-first rotating shaft, 321-first mounting portion, 3211-stop convex portion, 322-second mounting portion, 323-connecting portion,

[0029] 33-stop block, 331-first arc-shaped portion, 332-second arc-shaped portion, 333-arc-shaped through hole,

[0030] 40-driving assembly, 41-driving motor, 42-gear, 43-second rotating shaft, 431-transmission part,

[0031] 4311 - inner gear teeth, 432 - third mounting portion, 4321 - fixing boss, 4322 - second fixing hole. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0033] See also Figure 1-Figure 8, which is a 360-degree swing head structure 100100 of a fan blade provided by the utility model. The 360-degree swing head structure 100 of the fan blade includes a bracket 10 and a shell 20 rotatably connected to the bracket 10 and used to install the fan blade, and also includes a driving component 40 arranged on one side of the shell 20 for driving the shell 20 to drive the fan blade to rotate relative to the bracket 10, and a limiting component 30 arranged on the other side of the shell 20 for limiting the rotation angle of the shell 20. In the embodiment provided by the present utility model, the shell 20 includes a bracket 10 and an air duct 21 for accommodating fan blades, the limiting assembly 30 includes a crank seat 31 fixed on the air duct 21, a first rotating shaft 32 embedded in the bracket 10, and a stop block 33 embedded between the air duct 21 and the first rotating shaft 32, and the first rotating shaft 32 is provided with a stop protrusion 3211 embedded in the stop block 33. The driving assembly 40 drives the shell 20 to drive the crank seat 31 to rotate, and drives the stop protrusion 3211 of the first rotating shaft 32 to abut against the inner wall of the stop block 33 through the crank seat 31 to limit the rotation angle of the shell 20. A stop rib 311 is provided in the crank seat 31 , and the crank seat 31 drives the stop rib 311 to rotate and abut against the stop protrusion 3211 of the first rotating shaft 32 , so that the stop protrusion 3211 abuts against the inner wall of the arc-shaped through hole 333 of the stop block 33 to limit the rotation angle of the shell 20 .When the 360-degree swing head structure 100 of the fan blade is needed to drive the shell 20 to drive the fan blade to rotate relative to the bracket 10, the shell 20 is first driven by the driving assembly 40 to drive the fan blade to rotate. At this time, the crank seat 31 fixedly connected to the air duct 21 in the shell 20 drives the stop rib 311 to rotate relative to the bracket 10. When the stop rib 311 in the crank seat 31 abuts against the stop convex portion 3211 on the first rotating shaft 32, the crank seat 31 continues to push the embedded The first rotating shaft 32 in the bracket 10 rotates relative to the bracket 10, and the stop convex portion 3211 of the first rotating shaft 32 moves in the stop block 33 along the direction set by the stop block 33 until the stop convex portion 3211 on the first rotating shaft 32 abuts against the inner wall of the stop block 33. At this time, the driving component 40 drives the housing 20 to drive the fan blade to complete a 360-degree rotation in a single direction relative to the bracket 10, and because the stop convex portion 3211 on the first rotating shaft 32 abuts against the inner wall of the stop block 33, the fan blade is The drive assembly 40 cannot continue to drive the shell 20 to rotate relative to the bracket 10. At this time, the drive assembly 40 reversely drives the shell 20 to drive the fan blades to rotate reversely relative to the bracket 10, and after the stop rib 311 in the crank seat 31 reversely abuts against the stop convex portion 3211 on the first rotating shaft 32, the crank seat 31 continues to push the first rotating shaft 32 embedded in the bracket 10 to rotate reversely relative to the bracket 10 along the rotating shell 20, and the stop convex portion 3211 of the first rotating shaft 32 moves reversely in the stop block 33 along the direction set by the stop block 33 until the stop convex portion 3211 on the first rotating shaft 32 abuts against the inner wall of the other side of the stop block 33, so that the drive assembly 40 drives the shell 20 to drive the fan blades to complete a 360-degree rotation in the other direction relative to the bracket 10, thereby effectively preventing the shell 20 from driving the fan blades to repeatedly rotate 360 ​​degrees in the same clockwise or counterclockwise direction relative to the bracket 10, thereby improving the safety of the 360-degree swing head structure 100 of the fan blades. In addition, by embedding the stop protrusion 3211 on the first rotating shaft 32 into the stop block 33, when the user pushes the shell 20 to rotate, the stop protrusion 3211 on the first rotating shaft 32 can be pushed to abut against the inner wall of the stop block 33 through the stop rib 311 on the crank seat 31, thereby effectively limiting the rotation angle of the shell 20, and further effectively preventing the user from pushing the shell 20 to make a circular motion, thereby ensuring the safety of the 360-degree swing head structure 100 of the fan blade and reducing safety hazards during user use.

[0034] like Figure 2 and Figure 5As shown, the first rotating shaft 32 includes a first mounting portion 321, a second mounting portion 322, and a connecting portion 323 extending from the first mounting portion 321 out of the crank seat 31 and embedded in the bracket 10, and a stop convex portion 3211 extends from the first mounting portion 321 toward the stop block 33 and is embedded in the stop block 33. By extending the connecting portion 323 of the first rotating shaft 32 out of the crank seat 31 and embedded in the bracket 10, the stability of the first rotating shaft 32 embedded in the bracket 10 can be effectively ensured, and the first rotating shaft 32 can be rotated relative to the bracket 10 under the pushing action of the stop rib 311 of the crank seat 31 pushing the stop convex portion 3211. The stop block 33 includes a first arc portion 331 and a second arc portion 332 respectively used to abut against the first mounting portion 321 and the second mounting portion 322 of the first rotating shaft 32. A limiting portion extending toward the stop block 33 is provided on the air duct 21. The stop block 33 is embedded between the air duct 21 and the first rotating shaft 32 through the first arc portion 331, the second arc portion 332 and the limiting portion on the air duct 21. In the embodiment provided by the utility model, the first arc portion 331 and the second arc portion 332 of the stop block 33 are adapted to the outer shape of the first mounting portion 321 and the second mounting portion 322 of the first rotating shaft 32, thereby effectively ensuring the fit of the stop block 33 on the first rotating shaft 32. And the limiting portion extending toward the stop block 33 provided on the air duct 21 abuts against the stop block 33, thereby further improving the stability of the stop block 33 being embedded between the first rotating shaft 32 and the air duct 21.

[0035] like Figure 2 and Figure 5As shown, the stop block 33 also includes an arc-shaped through hole 333 for the stop protrusion 3211 of the first rotating shaft 32 to be embedded. The driving component 40 drives the bracket 10 to drive the crank seat 31 to rotate, and the stop protrusion 3211 of the first rotating shaft 32 is abutted against the inner wall of the arc-shaped through hole 333 of the stop block 33 through the crank seat 31 to limit the rotation angle of the shell 20. In the process that the stop rib 311 of the crank seat 31 pushes the stop protrusion 3211 of the first rotating shaft 32 to move, the stop protrusion 3211 moves along the direction of the arc-shaped through hole 333 on the stop block 33 until the stop protrusion 3211 abuts against the inner wall of the arc-shaped through hole 333. Then, the drive component 40 drives the shell 20 to drive the fan blades to complete a 360-degree rotation, thereby achieving the arc-shaped through hole 333 of the stop block 33 to compensate for the angular loss of the drive component 40 driving the shell 20 to rotate due to the thickness of the stop rib 311 on the crank seat 31, thereby achieving the operation of the drive component 40 driving the shell 20 to achieve a true 360-degree rotation. By using locking parts such as bolts, studs and pins to pass through the first fixing hole 312 on the crank seat 31 and lock it in the air duct 21, the stability of the fixed connection between the first rotating shaft 32 and the air duct 21 can be effectively guaranteed, thereby ensuring the stability of the driving assembly 40 driving the shell 20 to drive the crank seat 31 to rotate, and realizing the operation that the stop rib 311 on the crank seat 31 can push the stop protrusion 3211 on the first rotating shaft 32 to move in the arc hole of the stop block 33.

[0036] like Figure 3 and Figure 6As shown, the driving assembly 40 includes a driving motor 41 fixedly connected to the air duct 21, a gear 42 fixed on the output shaft of the driving motor 41, and a second rotating shaft 43 fixedly connected to the bracket 10, and an inner gear 4311 for meshing and driving with the gear 42 is arranged in the second rotating shaft 43. The second rotating shaft 43 includes a transmission part 431 and a third mounting part 432 extending from the transmission part 431 toward the bracket 10, and the inner gear 4311 is arranged on the inner wall of the transmission part 431. A PCB board for controlling the driving motor 41 to drive the gear 42 forward or reverse is also arranged in the housing 20, and the housing 20 also includes an upper decorative plate 22, a lower decorative plate 23 and a wind net 24 for fixing the air duct 21. The bracket 10 includes a side bracket 11, a lower bracket 12 and a side plate 13 that closes the side bracket 11. The limiting assembly 30 and the driving assembly 40 are both arranged between the side bracket 11 and the housing 20. In the embodiment provided by the utility model, when the driving assembly 40 is required to drive the housing 20 to drive the fan blades to rotate relative to the housing 20, the gear 42 fixed on the output shaft of the driving motor 41 is first driven by the driving motor 41 to rotate, and meshes with the inner gear 4311 on the inner wall of the transmission part 431 of the second rotating shaft 43, so that under the reaction force of the inner gear 4311 acting on the gear 42, the driving motor 41 fixedly connected to the housing 20 drives the housing 20 to rotate relative to the bracket 10, and ensures the stability of the meshing transmission between the gear 42 and the inner gear 4311 on the inner wall of the transmission part 431. The third mounting part 432 of the second rotating shaft 43 is provided with a fixing boss 4321 for being fixedly engaged with the bracket 10 and a second fixing hole 4322 fixedly connected to the bracket 10. The bracket 10 is provided with a mounting groove 111 for the fixing boss 4321 on the third mounting part 432 of the second rotating shaft 43 to be embedded. By embedding the fixing boss 4321 on the third mounting portion 432 of the second rotating shaft 43 into the mounting groove 111 of the bracket 10, and using locking members such as bolts, studs and pins to pass through the second fixing hole 4322 on the third mounting portion 432 and lock it in the bracket 10, the stability of the fixed connection between the second rotating shaft 43 and the bracket 10 can be effectively guaranteed, thereby further ensuring the stability of the meshing transmission between the gear 42 on the output shaft of the drive motor 41 and the internal gear 4311 of the transmission portion 431, and the stability of the reaction force of the transmission portion 431 acting on the gear 42, thereby ensuring the stability of the 360-degree swing head structure 100 of the fan blade driving the shell 20 to drive the fan blade to rotate 360 ​​degrees.

[0037] The above are only preferred embodiments of the present invention and are 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 360-degree swing head structure of a fan blade, comprising a bracket (10) and a housing (20) rotatably connected to the bracket (10) and used for mounting the fan blade, characterized in that: It also comprises a driving assembly (40) arranged on one side of the shell (20) for driving the shell (20) to drive the fan blades to rotate relative to the bracket (10), and a limiting assembly (30) arranged on the other side of the shell (20) for limiting the rotation angle of the shell (20); The shell (20) includes an air duct (21) for accommodating the fan blades, the limiting assembly (30) includes a crank seat (31) fixed on the air duct (21), a first rotating shaft (32) embedded in the bracket (10), and a stop block (33) clamped between the air duct (21) and the first rotating shaft (32), the first rotating shaft (32) is provided with a stop protrusion (3211) embedded in the stop block (33), the driving assembly (40) drives the shell (20) to drive the crank seat (31) to rotate, and drives the stop protrusion (3211) of the first rotating shaft (32) through the crank seat (31) to abut against the inner wall of the stop block (33) to limit the rotation angle of the shell (20).

2. A 360-degree swing head structure of a fan blade as claimed in claim 1, characterized in that: The first rotating shaft (32) comprises a first mounting portion (321), a second mounting portion (322), and a connecting portion (323) extending from the first mounting portion (321) out of the crank seat (31) and embedded in the bracket (10); the stop protrusion (3211) extends from the first mounting portion (321) toward the stop block (33) and is embedded in the stop block (33).

3. A 360-degree swing head structure of a fan blade as claimed in claim 2, characterized in that: The stop block (33) comprises a first arc-shaped portion (331) and a second arc-shaped portion (332) respectively used to abut against a first mounting portion (321) and a second mounting portion (322) of the first rotating shaft (32); a limiting portion (211) extending toward the stop block (33) is provided on the air duct (21); the stop block (33) is embedded between the air duct (21) and the first rotating shaft (32) via the first arc-shaped portion (331), the second arc-shaped portion (332) and the limiting portion (211) on the air duct (21).

4. A 360-degree swing head structure of a fan blade as claimed in claim 2, characterized in that: The stop block (33) also includes an arc-shaped through hole (333) in which the stop protrusion (3211) of the first rotating shaft (32) can be embedded. The driving component (40) drives the bracket (10) to drive the crank seat (31) to rotate, and through the crank seat (31), the stop protrusion (3211) of the first rotating shaft (32) is abutted against the inner wall of the arc-shaped through hole (333) of the stop block (33) to limit the rotation angle of the shell (20).

5. A 360-degree swing head structure of a fan blade as claimed in claim 4, characterized in that: A stop rib (311) is provided in the crank seat (31), and the crank seat (31) drives the stop rib (311) to rotate and abut against the stop convex portion (3211) of the first rotating shaft (32), so that the stop convex portion (3211) abuts against the inner wall of the arc-shaped through hole (333) of the stop block (33), so as to limit the rotation angle of the shell (20).

6. A 360-degree swing head structure of a fan blade as claimed in claim 3, characterized in that: The crank seat (31) is provided with a first fixing hole (312) for fixedly connecting with the air duct (21).

7. A 360-degree swing head structure of a fan blade as claimed in claim 1, characterized in that: The driving assembly (40) comprises a driving motor (41) fixedly connected to the air duct (21), a gear (42) fixed to an output shaft of the driving motor (41), and a second rotating shaft (43) fixedly connected to the bracket (10), wherein the second rotating shaft (43) is provided with internal gear teeth (4311) for meshing with the gear (42) for transmission.

8. A 360-degree swing head structure of a fan blade as claimed in claim 7, characterized in that: The second rotating shaft (43) comprises a transmission part (431) and a third mounting part (432) extending from the transmission part (431) toward the bracket (10), and the inner gear (4311) is arranged on the inner wall of the transmission part (431).

9. A 360-degree swing head structure of a fan blade as claimed in claim 8, characterized in that: The third mounting portion (432) of the second rotating shaft (43) is provided with a fixing boss (4321) for being embedded and fixed with the bracket (10) and a second fixing hole (4322) fixedly connected to the bracket (10).

10. A 360-degree swing head structure of a fan blade as claimed in claim 9, characterized in that: The bracket (10) is provided with a mounting groove (111) into which the fixing boss (4321) on the third mounting portion (432) of the second rotating shaft (43) can be embedded.

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