Pitching swinging head driving structure of fan blade

Abstract

The utility model provides a pitching swing head driving structure of a fan blade, which comprises a swing head driving assembly arranged on a stand column assembly and used for driving the fan blade to swing relative to a stand column, a connecting assembly used for connecting the fan blade with the swing head driving assembly in a transmission manner, and a resistance assembly used for connecting the swing head driving assembly with the connecting assembly in a transmission manner, the swing head driving assembly drives the fan blades to swing in a pitching mode relative to the stand column assembly through the connecting assembly. According to the pitching head-swinging driving structure of the fan blade, the fan blade can perform 180-degree reciprocating head-swinging motion relative to the stand column assembly through the head-swinging driving assembly, so that the head-swinging angle of the fan blade relative to the stand column assembly is effectively increased, and the indoor flowing area of air blown by the fan blade is increased; and the experience feeling of the user in the use process is improved. In addition, the swing driving assembly is in transmission connection with the connecting assembly through the resistance assembly, and the stability of the swing driving assembly in the process of driving the fan blades to swing relative to the stand column assembly can be effectively improved.

Description

Technical Field

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

[0002] The fan blades on the market currently have a small swing angle, which results in a small flow area of ​​the wind blown by the fan blades in the room, affecting the user experience during use. In addition, the fan blades are prone to shaking during the swing process due to the unstable connection structure, which causes wear between the internal parts of the fan, affecting the service life and safety of the fan. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of existing fans, such as the small swing angle of the fan blades, which leads to a small flow area of ​​the wind blown by the fan blades in the room and the fan blades are prone to shaking during the swing process, thereby causing wear between the internal parts of the fan, affecting the service life and safety of the fan, and providing a pitch swing drive structure for the fan blades.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a pitch and swing head drive structure of a fan blade, including a column assembly, a fan blade swingably connected to the column assembly, and a driving motor for driving the fan blade to rotate, and also includes a swing head drive assembly arranged on the column assembly for driving the fan blade to swing relative to the column assembly, a connecting assembly for transmission connecting the fan blade to the swing head drive assembly, and a resistance assembly for transmission connecting the swing head drive assembly to the connecting assembly, and the swing head drive assembly drives the fan blade to pitch and swing relative to the column assembly through the connecting assembly.

[0005] Furthermore, the connecting assembly includes a motor bracket fixedly connected to the fan blades and a fixed bracket fixed to the column assembly, the fixed bracket is provided with a fixed shaft, and the swing head driving assembly is transmission-connected to the connecting assembly via the fixed shaft.

[0006] Furthermore, the motor bracket includes a fixing surface fixedly connected to the fan blade and a first mounting surface and a second mounting surface respectively vertically arranged on both sides of the fixing surface, and the connecting assembly also includes a first shaft sleeve and a second shaft sleeve, which are respectively fixed on the first mounting surface and the second mounting surface and are sleeved on both ends of the fixed shaft.

[0007] Furthermore, the swing head drive assembly includes a drive motor arranged on the fixed bracket, a small transmission gear sleeved on the output shaft of the drive motor, and a large transmission gear sleeved on the fixed shaft and transmission connected to the small transmission gear, and the large transmission gear is transmission connected to the second sleeve through the resistance assembly.

[0008] Furthermore, the swing head driving assembly also includes a torsion spring which is sleeved on the fixed shaft and located at the center of the large transmission gear.

[0009] Furthermore, the resistance assembly includes a resistance bracket fixed on the fixed bracket, and the small transmission gear and the large transmission gear are located in a transmission space enclosed by the fixed bracket and the resistance bracket.

[0010] Furthermore, the resistance assembly also includes a large resistance gear arranged at the center of the resistance bracket and a plurality of small resistance gears meshing with the large resistance gear for transmission, and the large resistance gear is transmission-connected to the large transmission gear and the second sleeve.

[0011] Furthermore, the large transmission gear has a mounting platform extending toward the second sleeve, and the large resistance gear has a mounting groove at the center. The mounting platform on the large transmission gear is embedded in the mounting groove of the large resistance gear, so that the large resistance gear and the large transmission gear are embedded, fixed and connected in transmission.

[0012] Furthermore, the second sleeve has a fixing platform extending toward the large transmission gear. The fixing platform of the second sleeve is passed through the mounting groove on the large resistance gear and fixedly connected to the mounting platform of the large transmission gear, so that the second sleeve and the large transmission gear are connected in transmission.

[0013] Furthermore, the resistance bracket is also provided with a plurality of rotating shafts for rotatably connecting the small resistance gear (53) to the resistance bracket.

[0014] The beneficial effect of the pitch and swing head drive structure of the fan blade provided by the utility model is that the fan blade can perform a 180° reciprocating swing head motion relative to the column assembly through the swing head drive assembly, thereby effectively increasing the swing head angle of the fan blade relative to the column assembly, thereby increasing the area of ​​the wind blown by the fan blade flowing indoors, and improving the user's experience during use. In addition, the swing head drive assembly is connected to the connecting assembly through the resistance assembly, which can effectively eliminate the gap between the swing head drive assembly and the connecting assembly, improve the stability of the swing head drive assembly in the process of driving the fan blade to swing relative to the column assembly, avoid the fan blade from shaking during the swing process. The pitch and swing head drive structure of the fan blade is worn, thereby improving the service life and safety of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the exploded structure of the pitch and swing head driving structure of the fan blade provided by the utility model;

[0016] Figure 2 A schematic diagram of the assembly structure of the pitch and swing head drive structure of the fan blade provided by the utility model;

[0017] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0018] Figure 4 It is a schematic diagram of the assembly of the large transmission gear, the large resistance gear and the second shaft sleeve in the pitch and swing head driving structure of the fan blade provided by the utility model;

[0019] Figure 5 It is a structural schematic diagram of a resistance bracket and a motor bracket in the pitch and swing head driving structure of the fan blade provided by the utility model;

[0020] 100-blade pitch and swing head drive structure,

[0021] 10-column assembly, 20-fan blades, 21-drive motor, 30-swing head drive assembly, 31-drive motor, 32-small transmission gear, 33-large transmission gear, 331-mounting table, 34-torsion spring, 40-connecting assembly, 41-motor bracket, 411-fixing surface, 412-first mounting surface, 413-second mounting surface,

[0022] 42-fixed bracket, 421-fixed shaft, 43-first shaft sleeve, 44-second shaft sleeve, 441-fixed platform,

[0023] 50 - resistance assembly, 51 - resistance bracket, 511 - rotating shaft, 52 - large resistance gear, 521 - mounting slot, 53 - small resistance gear. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-5, which is a pitch and swing head drive structure 100 of a fan blade provided by the utility model. The pitch and swing head drive structure 100 of the fan blade includes a column assembly 10, a fan blade 20 swingingly connected to the column assembly 10, and a driving motor 21 for driving the fan blade 20 to rotate. It also includes a swing head drive assembly 30 arranged on the column assembly 10 for driving the fan blade 20 to swing relative to the column assembly 10, a connecting assembly 40 for transmission connecting the fan blade 20 to the swing head drive assembly 30, and a resistance assembly 50 for transmission connecting the swing head drive assembly 30 to the connecting assembly 40. The swing head drive assembly 30 drives the fan blade 20 to pitch and swing relative to the column assembly through the connecting assembly 40. The pitch and swing drive structure 100 of the fan blade provided by the utility model can make the fan blade 20 perform a 180° reciprocating swing motion relative to the column assembly 10 through the swing drive assembly 30, thereby effectively increasing the swing angle of the fan blade 20 relative to the column assembly 10, thereby increasing the area of ​​the wind blown by the fan blade 20 flowing indoors, and improving the user's experience during use. In addition, the swing drive assembly 30 is connected to the connecting assembly 40 through the resistance assembly 50, which can effectively eliminate the gap between the swing drive assembly 30 and the connecting assembly 40, improve the stability of the swing drive assembly 30 in the process of driving the fan blade 20 to swing relative to the column assembly 10, avoid the fan blade 20 from shaking during the swing process. Wear of the pitch and swing drive structure 100 of the fan blade is avoided, and the service life and safety of the fan are improved.

[0026] like Figure 1 , Figure 3 and Figure 5As shown, the connection assembly 40 includes a motor bracket 41 fixedly connected to the fan blade 20 and a fixed bracket 42 fixed to the column assembly 10, a fixed shaft 421 is provided on the fixed bracket 42, and the swing head drive assembly 30 is transmission-connected to the connection assembly 40 through the fixed shaft 421. The motor bracket 41 includes a fixed surface 411 fixedly connected to the fan blade 20 and a first mounting surface 412 and a second mounting surface 413 respectively vertically arranged on both sides of the fixed surface 411, and the connection assembly 40 also includes a first shaft sleeve 43 and a second shaft sleeve 44, the first shaft sleeve 43 and the second shaft sleeve 44 are respectively fixed on the first mounting surface 412 and the second mounting surface 413 and sleeved on both ends of the fixed shaft 421. In the embodiment provided by the utility model, the motor bracket 41 drives the fan blade 20 to be rotationally connected to the fixed bracket 42 through the first shaft sleeve 43 and the second shaft sleeve 44. The swing head driving assembly 30 drives the second sleeve 44 fixedly connected to the motor bracket 41 to rotate, and the second sleeve 44 is fixedly connected to the motor bracket 41, so that the swing head driving assembly 30 drives the motor 21 bracket through the second sleeve 44 to drive the fan blade 20 to perform a reciprocating swing head movement relative to the column assembly 10. By using locking members such as bolts, studs and pins to pass through the first sleeve 43 and the second sleeve 44 and lock them in the motor bracket 41, the stability of the fixed connection between the first sleeve 43 and the second sleeve 44 is effectively improved, thereby improving the stability of the swing head driving assembly 30 driving the motor 21 bracket through the connection assembly 40 to drive the fan blade 20 to swing relative to the column assembly 10.

[0027] like Figure 1 and Figure 3As shown, the swing head driving assembly 30 includes a driving motor 31 arranged on a fixed bracket 42, a small transmission gear 32 sleeved on the output shaft of the driving motor 31, and a large transmission gear 33 sleeved on a fixed shaft 421 and transmission-connected to the small transmission gear 32, and the large transmission gear 33 is transmission-connected to the second shaft sleeve 44 through a resistance assembly 50. In the embodiment provided by the utility model, the outer circumferential surface of the large transmission gear 33 has an outer gear tooth of 180°, when the driving motor 31 drives the small transmission gear 32 to drive the large transmission gear 33 to rotate to one side edge of the outer gear tooth, the driving motor 31 reversely drives the small transmission gear 32 to drive the large transmission gear 33 to rotate to the other side edge of the outer gear tooth, thereby realizing the operation of the driving motor 31 driving the small transmission gear 32 through the large transmission gear 33 so that the connecting assembly 40 drives the fan blade 20 to reciprocate the swing head relative to the column assembly 10. By driving the small transmission gear 32 to drive the large transmission gear 33 to rotate, and using the large transmission gear 33 to drive the second sleeve 44 to rotate through the resistance component 50, the motor bracket 41 fixedly connected to the second sleeve 44 drives the fan blade 20 to swing relative to the column assembly 10, which can effectively improve the torque when the drive motor 31 drives the large transmission gear 33 to rotate, thereby improving the stability of the swing head drive assembly 30 driving the motor 21 bracket to drive the fan blade 20 to swing relative to the column assembly 10. In addition, the resistance component 50 can effectively eliminate the gap between the swing head drive assembly 30 and the connecting assembly 40, improve the stability of the swing head drive assembly 30 in the process of driving the fan blade 20 to swing relative to the column assembly 10, avoid the fan blade 20 from shaking during the swing process. The pitch swing head drive structure 100 of the fan blade is worn, thereby improving the service life and safety of the fan. In the embodiment provided by the present use novel, the swing head drive assembly 30 also includes a torsion spring 34 sleeved on the fixed shaft 421 and located at the center of the large transmission gear 33. During the process in which the swing head drive assembly 30 drives the fan blade 20 to rotate relative to the column assembly 10 through the connecting assembly 40, since the center of rotation is not at the center of gravity of the head of the pitch swing head drive structure 100 of the fan blade, under normal circumstances, the head will have a force to lean forward. Therefore, by arranging a torsion spring 34 at the center of the large transmission gear 33, the torque can be effectively balanced, thereby further improving the large transmission gear 33 driving the second shaft sleeve 44 to rotate, so that the motor bracket 41 drives the fan blade 20 to swing relative to the column assembly 10. Stability.

[0028] like Figure 3 , Figure 4 and Figure 5As shown, the resistance assembly 50 includes a resistance bracket 51 fixed on the fixed bracket 42 and a resistance gear assembly rotatably connected to the resistance bracket 51, and the small transmission gear 32 and the large transmission gear 33 are located in the transmission space enclosed by the fixed bracket 42 and the resistance bracket 51. The resistance gear assembly includes a large resistance gear 52 arranged at the center of the resistance bracket 51 and three small resistance gears 53 (53) meshing with the large resistance gear 52 for transmission, and the large resistance gear 52 is fixedly connected to the large transmission gear 33 and the second shaft sleeve 44. The resistance bracket 51 is also provided with three rotating shafts 511 for rotatably connecting the small resistance gears 53 (53) to the resistance bracket 51. By fixing the large resistance gear 52 to the large transmission gear 33 and the second shaft sleeve 44, the gap between the large transmission gear 33 and the second shaft sleeve 44 can be effectively eliminated, thereby improving the stability of the swing head drive assembly 30 in the process of driving the fan blade 20 to swing relative to the column assembly 10, avoiding the fan blade 20 from shaking during the swinging process, causing the pitch swing head drive structure 100 of the fan blade to wear, thereby improving the service life and safety of the fan. In addition, by providing three small resistance gears 53 (53) meshing with the large resistance gear 52 on the resistance bracket 51, multiple sets of gear transmission structures can be formed between the drive motor 31 and the second shaft sleeve 44, thereby improving the stability of the large resistance gear 52 when the second shaft sleeve 44 rotates with the large transmission gear 33, thereby further improving the stability of the swing head drive assembly 30 when the connection assembly 40 drives the fan blade 20 to rotate relative to the column assembly 10 through the resistance assembly 50.

[0029] like Figure 4As shown, in the embodiment provided by the utility model, the large transmission gear 33 has a mounting platform 331 extending toward the second shaft sleeve 44, and the center of the large resistance gear 52 has a mounting groove 521. By inserting the mounting platform 331 on the large transmission gear 33 into the mounting groove 521 of the large resistance gear 52, the large resistance gear 52 and the large transmission gear 33 are fixed and transmission-connected. The second shaft sleeve 44 has a fixing platform 441 extending toward the large transmission gear 33. By passing the fixing platform 441 of the second shaft sleeve 44 through the mounting groove 521 on the large resistance gear 52 and fixing it with the mounting platform 331 of the large transmission gear 33, the second shaft sleeve 44 and the large transmission gear 33 are transmission-connected. After the mounting platform 331 on the large transmission gear 33 is embedded in the mounting groove 521 of the large resistance gear 52, so that the large resistance gear 52 and the large transmission gear 33 are embedded, fixed and transmission connected, the mounting groove 521 on the large resistance gear 52 is passed through the fixing platform 441 of the second shaft sleeve 44, and the fixing members such as bolts, studs and pins are passed through the fixing platform 441 on the second shaft sleeve 44 and locked in the mounting platform 331 of the large transmission gear 33, so that the large transmission gear 33 is transmission connected with the second shaft sleeve 44, and the stability of the transmission connection between the large transmission gear 33 and the second shaft sleeve 44 and the large resistance gear 52 is effectively guaranteed, and the stability of the overall structure of the pitch and swing head drive structure 100 of the fan blade is guaranteed.

[0030] 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 pitch and tilt drive structure for a fan blade, comprising a column assembly (10), a fan blade (20) swingably connected to the column assembly (10), and a drive motor (21) for driving the fan blade (20) to rotate, It is characterized in that The invention also comprises a swing head drive assembly (30) arranged on the column assembly (10) for driving the fan blades (20) to swing relative to the column assembly (10), a connecting assembly (40) for transmission connection between the fan blades (20) and the swing head drive assembly (30), and a resistance assembly (50) for transmission connection between the swing head drive assembly (30) and the connecting assembly (40); the swing head drive assembly (30) drives the fan blades (20) to swing relative to the column assembly (10) in pitch through the connecting assembly (40).

2. A pitch and tilt drive structure for a fan blade as claimed in claim 1, It is characterized in that The connecting assembly (40) comprises a motor bracket (41) fixedly connected to the fan blade (20) and a fixed bracket (42) fixed to the column assembly (10); a fixed shaft (421) is provided on the fixed bracket (42); and the swing head driving assembly (30) is transmission-connected to the connecting assembly (40) via the fixed shaft (421).

3. A pitch and tilt drive structure for a fan blade as claimed in claim 2, It is characterized in that The motor bracket (41) comprises a fixing surface (411) fixedly connected to the fan blade (20) and a first mounting surface (412) and a second mounting surface (413) respectively arranged perpendicularly on both sides of the fixing surface (411); the connecting assembly (40) further comprises a first shaft sleeve (43) and a second shaft sleeve (44); the first shaft sleeve (43) and the second shaft sleeve (44) are respectively fixed on the first mounting surface (412) and the second mounting surface (413) and are sleeved on both ends of the fixed shaft (421).

4. A pitch and tilt drive structure for a fan blade as claimed in claim 3, It is characterized in that The swing head driving assembly (30) comprises a driving motor (31) arranged on the fixed bracket (42), a small transmission gear (32) sleeved on the output shaft of the driving motor (31), and a large transmission gear (33) sleeved on the fixed shaft (421) and transmission-connected to the small transmission gear (32); the large transmission gear (33) is transmission-connected to the second shaft sleeve (44) via the resistance assembly (50).

5. A pitch and tilt drive structure for a fan blade as claimed in claim 4, It is characterized in that The swing head driving assembly (30) further comprises a torsion spring (34) which is sleeved on the fixed shaft (421) and located at the center of the large transmission gear (33).

6. A pitch and tilt drive structure for a fan blade as claimed in claim 4, It is characterized in that The resistance assembly (50) comprises a resistance bracket (51) fixed on the fixed bracket (42), and the small transmission gear (32) and the large transmission gear (33) are located in a transmission space enclosed by the fixed bracket (42) and the resistance bracket (51).

7. A pitch and tilt drive structure for a fan blade as claimed in claim 6, It is characterized in that The resistance assembly (50) further comprises a large resistance gear (52) arranged at the center of the resistance bracket (51) and a plurality of small resistance gears (53) meshing with the large resistance gear (52) for transmission, and the large resistance gear (52) is transmission-connected to the large transmission gear (33) and the second shaft sleeve (44).

8. A pitch and tilt drive structure for a fan blade as claimed in claim 7, It is characterized in that The large transmission gear (33) has a mounting platform (331) extending toward the second shaft sleeve (44), and the large resistance gear (52) has a mounting groove (521) at the center thereof. The mounting platform (331) on the large transmission gear (333) is embedded in the mounting groove (521) of the large resistance gear (52), so that the large resistance gear (52) and the large transmission gear (33) are embedded, fixed, and transmission-connected.

9. A pitch and swing head drive structure for a fan blade as claimed in claim 7, It is characterized in that The second shaft sleeve (44) has a fixing platform (441) extending toward the large transmission gear (33), and the fixing platform (441) of the second shaft sleeve (44) is passed through the mounting groove (521) on the large resistance gear (52) and fixedly connected to the mounting platform (331) of the large transmission gear (33), so that the second shaft sleeve (44) and the large transmission gear (33) are transmission-connected.

10. A pitch and tilt drive structure for a fan blade as claimed in claim 7, Features The resistance bracket (51) is also provided with a plurality of rotating shafts (511) for rotatably connecting the small resistance gear (53) to the resistance bracket (51).

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