Synchronous belt driving mechanism for automobile sunshade curtain
By designing lifting and limiting components, the problem of the motor not stopping immediately when the sunshade is damaged is solved, achieving stable rolling and releasing of the sunshade and improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-03-06
AI Technical Summary
When existing sunshades are damaged, the motor cannot be stopped immediately, causing the output shaft to rotate continuously. This makes it impossible to effectively control the rolling up or unrolling of the sunshade, resulting in limitations in its use.
The design incorporates lifting and limiting components. By using a motor to drive the rotating column and winding wheel, combined with the sliding groove and slider of the limiting component, the sunshade can be raised and lowered stably, avoiding continuous operation caused by the inertia of the motor.
This technology enables the sunshade curtain to retract or release stably even in the event of damage, preventing the equipment from derailing and improving the stability and safety of its use.
Smart Images
Figure CN223972402U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive sunshade technology, and more specifically, to a synchronous belt drive mechanism for automotive sunshades. Background Technology
[0002] Side windows, a standard feature in many cars, are installed on the sides of the vehicle to effectively improve air circulation and increase the intake of fresh air, providing a healthy and comfortable experience for the driver and passengers. They also offer a wider field of vision and are often used for mobile photography and videography, preventing discomfort caused by direct sunlight in the hot summer months. Electric sunshades require a dedicated drive assembly, which is a crucial component of any car sunroof.
[0003] Existing drive assemblies primarily rely on a motor to drive a shaft for rotation. However, in the event of sunshade damage, the motor needs to stop rotating to prevent further rolling or unrolling of the sunshade and minimize further damage. Nevertheless, the motor output shaft continues to rotate due to inertia, making immediate stopping impossible and thus posing significant limitations in practical applications. Therefore, a synchronous belt drive mechanism for automotive sunshades is proposed to address this issue. Utility Model Content
[0004] To overcome the above-mentioned defects of the prior art, the present invention provides a synchronous belt drive mechanism for automotive sunshades. The technical problem to be solved by the present invention is that when existing sunshades are damaged, in order to reduce damage, the motor needs to stop rotating to prevent the sunshade from continuing to roll up or release. However, the output shaft is affected by the rotational inertia and will continue to rotate, making it impossible to achieve the purpose of immediate stop. Therefore, it has significant limitations in practical use.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a synchronous belt drive mechanism for an automotive sunshade, comprising a lifting assembly, wherein a first limiting assembly is provided on one side of the lifting assembly, and a second limiting assembly is provided on the side of the lifting assembly away from the first limiting assembly;
[0006] The lifting assembly includes a rotating column, with a sunshade curtain fitted onto its outer surface. Both ends of the rotating column are fixedly connected to winding reels. A motor is fixedly connected to the outer side of one of the winding reels, and a fixing plate is fixedly connected to the outer side of the other winding reel. A housing is fitted onto the outer surface of the motor. A sliding strip is fixedly connected to the end of the sunshade curtain away from the rotating column. Wires are fixedly connected to both ends of the top of the sliding strip and to multiple winding reels. A gear is fixedly connected to the end of the sliding strip near the motor. A first slider is fixedly connected to the side of the gear away from the sliding strip, and a second slider is fixedly connected to the side of the sliding strip away from the gear.
[0007] In a preferred embodiment, the first limiting component includes a first fixed frame, the inner cavity of the first fixed frame having a first movable cavity, the inner wall of the first movable cavity being fixedly connected to the first limiting frame, the inner cavity of the first limiting frame having a first sliding groove, the top of the first limiting frame being fixedly connected to a first locking block, the inner wall of the first movable cavity being fixedly connected to a rack, the inner wall of the first movable cavity being fixedly connected to a first fixing strip, the top of the outer surface of the first fixing strip being fixedly connected to a first thread wheel, and the outer surface of the first fixing strip being fixedly connected to a plurality of first limiting tubes.
[0008] In a preferred embodiment, the second limiting component includes a second fixed frame, the inner cavity of the second fixed frame having a second movable cavity, the inner wall of the second movable cavity being fixedly connected to the second limiting frame, the inner cavity of the second limiting frame having a second sliding groove, the top of the second limiting frame being fixedly connected to a second locking block, the inner wall of the second movable cavity being fixedly connected to a second fixing strip, the top of the outer surface of the second fixing strip being fixedly connected to a second thread wheel, and the outer surface of the second thread wheel being fixedly connected to a plurality of second limiting tubes.
[0009] In a preferred embodiment, the rotating column and the sunshade are wound counterclockwise, and the wire and the winding wheel are wound clockwise. The rotating column, the winding wheel, and the motor output end are fixedly connected and rotate synchronously.
[0010] In a preferred embodiment, the first slider is disposed in the first sliding groove, and the gear intersects with the toothed edge of the outer surface of the rack.
[0011] In a preferred embodiment, the first limiting component and the second limiting component are symmetrically arranged, the first limiting component has more racks than the second limiting component, and the other components are the same.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] 1. This utility model, by incorporating a lifting assembly, allows for direct rotation of the rotating column and multiple winding reels by starting the motor. When the sunshade needs to rise, the motor drives the winding reels clockwise to retract the wires. Simultaneously, the rotating column releases the sunshade due to its clockwise rotation, and the wires lift the sunshade to block sunlight. When the sunshade needs to be rolled up, the motor rotates counterclockwise, causing the rotating column to do the same, thus rolling up the sunshade. The wires extend out onto the winding reels. This solves the problem that in existing sunshade systems, to minimize damage, the motor must stop rotating to prevent further rolling or releasing of the sunshade. However, the motor output shaft continues to rotate due to inertia, making immediate stopping impossible.
[0014] 2. This utility model, by providing a first limiting component and a second limiting component, allows the first and second sliders on both sides of the sliding bar to slide directly through the first and second sliding grooves within the first and second limiting components during later use. Furthermore, multiple wires penetrate the first fixing strip, the first wheel, the first limiting tube, the second fixing strip, the second wheel, and the second limiting tube, ensuring stable movement of the wires and preventing potential derailment during equipment operation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the lifting component structure of this utility model.
[0017] Figure 3 This is an exploded view of the first limiting component of this utility model.
[0018] Figure 4 This is an enlarged view of the first limiting tube structure of this utility model.
[0019] Figure 5 This is an exploded view of the second limiting component of this utility model.
[0020] Figure 6 This is an enlarged view of the first slider structure of this utility model.
[0021] The attached figures are labeled as follows: 1. Lifting assembly; 11. Rotating column; 12. Sunshade curtain; 13. Winding reel; 14. Motor; 15. Housing; 16. Sliding bar; 17. Wire; 18. Gear; 19. First slider; 110. Second slider; 111. Fixing plate; 2. First limiting assembly; 21. First fixing frame; 22. First moving cavity; 23. First limiting frame; 24. First sliding groove; 25. First locking block; 26. Rack; 27. First fixing bar; 28. First winding reel; 29. First limiting tube; 3. Second limiting assembly; 31. Second fixing frame; 32. Second moving cavity; 33. Second limiting frame; 34. Second sliding groove; 35. Second locking block; 36. Second fixing bar; 37. Second winding reel; 38. Second limiting tube. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] This utility model provides a synchronous belt drive mechanism for an automotive sunshade, including a lifting component 1, a first limiting component 2 on one side of the lifting component 1, and a second limiting component 3 on the side of the lifting component 1 away from the first limiting component 2.
[0024] The lifting assembly 1 includes a rotating column 11, a sunshade curtain 12 sleeved on the outer surface of the rotating column 11, and winding wheels 13 fixedly connected to both ends of the rotating column 11. A motor 14 is fixedly connected to the outer side of one winding wheel 13, and a fixing plate 111 is fixedly connected to the outer side of the other winding wheel 13. A housing 15 is sleeved on the outer surface of the motor 14. A sliding strip 16 is fixedly connected to the end of the sunshade curtain 12 away from the rotating column 11. Wires 17 are fixedly connected to both ends of the top of the sliding strip 16 and multiple winding wheels 13. A gear 18 is fixedly connected to the end of the sliding strip 16 near the motor 14. A first slider 19 is fixedly connected to the side of the gear 18 away from the sliding strip 16, and a second slider 110 is fixedly connected to the side of the sliding strip 16 away from the gear 18.
[0025] The first limiting component 2 includes a first fixed frame 21, a first movable cavity 22 is opened in the inner cavity of the first fixed frame 21, a first limiting frame 23 is fixedly connected to the inner wall of the first movable cavity 22, a first sliding groove 24 is opened in the inner cavity of the first limiting frame 23, a first locking block 25 is fixedly connected to the top of the first limiting frame 23, a rack 26 is fixedly connected to the inner wall of the first movable cavity 22, a first fixing strip 27 is fixedly connected to the inner wall of the first movable cavity 22, a first thread wheel 28 is fixedly connected to the top of the outer surface of the first fixing strip 27, and a plurality of first limiting tubes 29 are fixedly connected to the outer surface of the first fixing strip 27.
[0026] The second limiting component 3 includes a second fixed frame 31, a second moving cavity 32 is opened in the inner cavity of the second fixed frame 31, a second limiting frame 33 is fixedly connected to the inner wall of the second moving cavity 32, a second sliding groove 34 is opened in the inner cavity of the second limiting frame 33, a second locking block 35 is fixedly connected to the top of the second limiting frame 33, a second fixing strip 36 is fixedly connected to the inner wall of the second moving cavity 32, a second thread wheel 37 is fixedly connected to the top of the outer surface of the second fixing strip 36, and a plurality of second limiting tubes 38 are fixedly connected to the outer surface of the second thread wheel 37.
[0027] The rotating column 11 and the sunshade curtain 12 are wound counterclockwise, while the wire 17 and the winding wheel 13 are wound clockwise. The rotating column 11, the winding wheel 13, and the output end of the motor 14 are fixedly connected and rotate synchronously. In later use, the rotation of the motor 14 allows the sunshade curtain 12 on the surface of the rotating column 11 to extend and retract when the winding wheel 13 retracts. When the rotating column 11 retracts the sunshade curtain 12, the winding wheel 13 can release the wire 17, making the equipment operate more stably.
[0028] The first slider 19 is disposed in the first sliding groove 24, and the gear 18 intersects with the toothed edge of the outer surface of the rack 26. In use, the first slider 19 can be limited by the first sliding groove 24, and the movement between the gear 18 and the rack 26 is more stable.
[0029] The first limiting component 2 and the second limiting component 3 are symmetrically arranged. The first limiting component 2 has more racks 26 than the second limiting component 3, and the other components are the same. In later use, it can ensure that the components in the lifting component 1 can be lifted and lowered stably.
[0030] Working principle of this utility model:
[0031] In later use, the motor 14 can be started to drive the rotating column 11 and multiple winding wheels 13 to rotate. When the sunshade curtain 12 needs to be raised, the motor 14 drives the winding wheels 13 to rotate clockwise to retract the wire 17. At the same time, the rotating column 11 releases the sunshade curtain 12 due to the clockwise rotation, and the wire 17 drives the sunshade curtain 12 to rise, achieving the purpose of the sunshade curtain 12 rising to block the sunlight. When the sunshade curtain 12 needs to be rolled up, the motor 14 can be rotated counterclockwise to make the rotating column 11 rotate counterclockwise to achieve the effect of rolling up the sunshade curtain 12. At the same time, the wire 17 extends out to the winding wheels 13. This solves the problem that when the existing sunshade curtain 12 is damaged, in order to reduce damage, the motor 14 needs to stop rotating to avoid continuing to roll up or release the sunshade curtain 12. However, the output shaft of the motor 14 will continue to rotate due to the influence of rotational inertia, and it is impossible to achieve the purpose of immediate stop. In later use, the sliding of the first slider 19 and the second slider 110 on both sides of the sliding bar 16 can be directly limited by the first sliding groove 24 and the second sliding groove 34 in the first limiting component 2 and the second limiting component 3. Then, multiple wires 17 pass through the first fixing bar 27, the first wheel 28, the first limiting tube 29, the second fixing bar 36, the second wheel 37 and the second limiting tube 38, so that the wires 17 can move stably and avoid the problem of derailment that may occur when the equipment is running.
[0032] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0033] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A synchronous belt drive mechanism for an automotive sun visor, comprising a lifting assembly (1), characterized in that: The lifting assembly (1) is provided with a first limiting assembly (2) on one side, and a second limiting assembly (3) is arranged on the side, away from the first limiting assembly (2), of the lifting assembly (1); The lifting assembly (1) comprises a rotating column (11), the outer surface of the rotating column (11) is sleeved with a sunshade curtain (12), both ends of the rotating column (11) are fixedly connected with a winding wheel (13), the outer side of one of the winding wheels (13) is fixedly connected with a motor (14), the outer side of the other winding wheel (13) is fixedly connected with a fixed sheet (111), the outer surface of the motor (14) is sleeved with a shell (15), one end of the sunshade curtain (12), away from the rotating column (11), is fixedly connected with a sliding bar (16), the top of the sliding bar (16) is fixedly connected with a plurality of wires (17) between both ends of the sliding bar (16) and the plurality of winding wheels (13), one end of the sliding bar (16), close to the motor (14), is fixedly connected with a gear (18), the gear (18) is fixedly connected with a first sliding block (19) on the side, away from the sliding bar (16), of the gear (18), and the side, away from the gear (18), of the sliding bar (16) is fixedly connected with a second sliding block (110).
2. The synchronous belt drive mechanism for an automotive sunshade according to claim 1, characterized by: The first limiting assembly (2) comprises a first fixed frame (21), a first moving cavity (22) is formed in the inner cavity of the first fixed frame (21), a first limiting frame (23) is fixedly connected to the inner wall of the first moving cavity (22), a first sliding groove (24) is formed in the inner cavity of the first limiting frame (23), a first locking block (25) is fixedly connected to the top of the first limiting frame (23), a rack (26) is fixedly connected to the inner wall of the first moving cavity (22), a first fixed strip (27) is fixedly connected to the inner wall of the first moving cavity (22), a first wire wheel (28) is fixedly connected to the top of the outer surface of the first fixed strip (27), and a plurality of first limiting tubes (29) are fixedly connected to the outer surface of the first fixed strip (27).
3. The synchronous belt drive mechanism for an automotive sunshade according to claim 1, characterized in that: The second limiting assembly (3) comprises a second fixed frame (31), a second moving cavity (32) is formed in the inner cavity of the second fixed frame (31), a second limiting frame (33) is fixedly connected to the inner wall of the second moving cavity (32), a second sliding groove (34) is formed in the inner cavity of the second limiting frame (33), a second locking block (35) is fixedly connected to the top of the second limiting frame (33), a second fixed strip (36) is fixedly connected to the inner wall of the second moving cavity (32), a second wire wheel (37) is fixedly connected to the top of the outer surface of the second fixed strip (36), and a plurality of second limiting tubes (38) are fixedly connected to the outer surface of the second wire wheel (37).
4. The synchronous belt drive mechanism for an automotive sunshade according to claim 1, characterized by: The rotating column (11) and the sunshade curtain (12) are wound counterclockwise, the wire (17) and the winding wheel (13) are wound clockwise, the rotating column (11), the winding wheel (13) and the motor (14) are fixedly connected at the output end and rotate synchronously.
5. The synchronous belt drive mechanism for an automotive sunshade according to claim 2, characterized by: The first sliding block (19) is arranged in the first sliding groove (24), and the gear (18) and the rack (26) are intersected at the outer surface teeth.
6. A sun visor synchronous belt drive mechanism according to claim 3, wherein: The first limiting component (2) and the second limiting component (3) are symmetrically arranged, the first limiting component (2) is provided with more racks (26) than the second limiting component (3), and the remaining components are consistent.