A retractable awning for a vehicle

Abstract

The application discloses a sunshade curtain roller assembly of a car which can stop with pulling, comprising a hollow shaft, one end of the hollow shaft is provided with a roller inner core, and the other end of the hollow shaft is provided with a damping assembly and a self-locking assembly. The application avoids fixing only by the damping assembly, solves the damage and safety problems of the sunshade curtain caused by the fast rolling speed of the sunshade curtain when rolling back, reduces the abrasion of the damping assembly, and prolongs the service life. Meanwhile, the self-locking assembly is adopted, and the self-locking function is achieved, so that the sunshade curtain can stop with pulling.

Description

Technical Field

[0001] This invention relates to the field of sunshade accessories technology, and in particular to a car sunshade roller assembly that can be pulled and stopped at will. Background Technology

[0002] With the widespread use of sunshades, existing technologies have extended their application to automobiles, especially to car sunroofs. Car sunroofs, installed on the roof, can effectively circulate air inside the car, increase the intake of fresh air, and bring a healthy and comfortable experience to car owners.

[0003] With the increasing application of panoramic sunroofs in automobiles, users have higher and higher requirements for the light-blocking performance of sunshades. Traditional sunshades have high light transmittance and are relatively light, but the rotating shaft that winds the sunshade does not have an automatic rewind function, requiring the operator to manually open or close the sunshade. However, sunshades with high light-blocking rate have a higher density and are heavier, and the rotating shaft without an automatic rewind function may not be able to ensure that the sunshade retracts, resulting in functional failure. However, existing sunshades with automatic rewind function have the following drawbacks: (1) they do not have a self-locking function and cannot be pulled and stopped at will; (2) when the sunshade rewinds, the rewind speed is fast, and the conventional damper is ineffective, which can easily cause damage and safety problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a pull-and-stop car sunshade roller assembly, which avoids the need for fixing with only damping components, solves the problem of sunshade damage and safety issues caused by the fast rewind speed during rewinding, reduces wear on damping components, and improves service life; at the same time, it adopts a self-locking component, which has a self-locking function and can be pulled and stopped at will.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a car sunshade roller assembly that can be pulled and stopped at will, including a hollow shaft, one end of which is provided with a roller inner core, and the other end of which is provided with a damping component and a self-locking component;

[0006] The inner core of the reel includes a shock-absorbing tube and an inner core spring. One end of the shock-absorbing tube is provided with a spring fixing terminal, and the other end of the shock-absorbing tube is provided with a spring anti-rotation terminal. The spring fixing terminal includes a terminal base and a terminal connector. A large gear is sleeved on the terminal connector. A gear shaft is provided on the terminal base. One end of the gear shaft is fixedly connected to the terminal base, and the other end of the gear shaft is provided with an end cap. A reduction gear, a reduction spring, and a reduction friction pad are sleeved on the gear shaft. The reduction spring is located between the end cap and the reduction gear, and the reduction friction pad is located between the reduction gear and the terminal base. The reduction gear meshes with the large gear. The inner core spring is sleeved inside the shock-absorbing tube. One end of the inner core spring is sleeved on the spring anti-rotation terminal, and the other end of the inner core spring is sleeved on the terminal connector.

[0007] The damping assembly includes a damping connecting rod, a damping spring, and a damping block. The damping spring is sleeved on one end of the damping connecting rod, and a spring fixing seat is provided outside the damping spring. The outer wall of the spring fixing seat is connected to the inner wall of the hollow shaft. The damping block is sleeved on the other end of the damping connecting rod, and a damping shell is provided outside the damping block.

[0008] The self-locking assembly includes a self-locking support rod, a self-locking block, a self-locking outer shell, and a self-locking ball. The self-locking block is sleeved on the self-locking support rod, and a labyrinth groove is formed on the outer peripheral surface of the self-locking block. The labyrinth groove includes a communicating moving part and a self-locking part. The self-locking outer shell is disposed outside the self-locking block, and a limiting groove is provided on the inner wall of the self-locking outer shell. One end of the self-locking ball's rotating shaft is located in the labyrinth groove, and the other end of the self-locking ball's rotating shaft is located in the limiting groove. The self-locking outer shell is embedded in the hollow shaft through the limiting groove. The outer wall of the self-locking outer shell is connected to the inner wall of the hollow shaft. The hollow shaft drives the self-locking outer shell to rotate. When rotating, the limiting groove drives the self-locking ball to slide in the moving part. When self-locking, the limiting groove drives the self-locking ball to be limited in the self-locking part.

[0009] As a preferred embodiment, the terminal connector is fitted with a spring rotating sleeve, one end of which is provided with a first locking pin hole, and the other end of which is located between the spring fixing terminal and the shock absorber tube.

[0010] As a preferred embodiment, the end of the spring fixing terminal away from the inner core spring is provided with a second locking pin hole, the second locking pin hole being correspondingly provided with the first locking pin hole, and a locking pin shaft being provided in both the first and second locking pin holes.

[0011] As a preferred embodiment, the damping connecting rod has a mating part in the middle, and the end of the damping connecting rod with the damping spring has a first slot with a first buckle in the first slot. One end of the spring fixing seat contacts the mating part, and the other end of the spring fixing seat contacts the first buckle.

[0012] As a preferred embodiment, the damping connecting rod has a damping strip on the outer periphery of one end where the damping block is located, and the inner wall of the damping block has a second groove that cooperates with the damping strip. The outer wall of the damping block is in contact with the inner wall of the damping shell.

[0013] As a preferred embodiment, the damping connecting rod has a second buckle extending along the axis at the end of the damping block, one end of the damping housing contacts the abutting part, and the other end of the damping housing is provided with a third slot, in which the second buckle is engaged.

[0014] As a preferred embodiment, one end of the self-locking support rod is provided with a self-locking connecting seat, and the other end of the self-locking support rod is provided with a self-locking connecting head. One end of the self-locking housing abuts against the self-locking connecting seat, and the other end of the self-locking housing is provided with an end face. The self-locking housing and the self-locking connecting seat form a hollow structure.

[0015] As a preferred embodiment, the self-locking block is disposed within a hollow structure, the movable part is distributed along the radial outer circumferential surface of the self-locking block, the self-locking part extends along the axial outer circumferential surface of the self-locking block, and a self-locking locking part is provided at the connection between the self-locking part and the movable part; a self-locking spring is sleeved on the self-locking support rod and is coaxially disposed with the self-locking block, and the self-locking spring is disposed within the hollow structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] (1) It avoids the problem of fixing with only damping components, solves the problem of sunshade damage and safety caused by the fast rewind speed when the sunshade rolls back, reduces the wear of damping components, and improves service life;

[0018] (2) It adopts a self-locking component and has a self-locking function, which can be pulled and stopped at will. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the inner core of the scroll in this invention;

[0021] Figure 3 This is an exploded view of the structure of the inner core of the rotating shaft in this invention;

[0022] Figure 4This is a schematic diagram of the damping component in this invention;

[0023] Figure 5 This is an exploded view of the damping component in this invention;

[0024] Figure 6 This is a schematic diagram of the self-locking component in this invention;

[0025] Figure 7 This is a schematic diagram of the internal structure of the self-locking component in this invention;

[0026] Figure 8 This is an exploded view of the self-locking component in this invention;

[0027] Figure 9 This is a connection diagram of the self-locking component and the damping component in this invention;

[0028] The attached diagram lists the following components: 1. Hollow shaft; 2. Inner core of the reel; 3. Damping assembly; 4. Self-locking assembly; 5. Shock absorber tube; 6. Inner core spring; 7. Spring fixing terminal; 8. Spring anti-rotation terminal; 9. Terminal base; 10. Terminal connector; 11. Large gear; 12. Gear shaft; 13. End cover; 14. Reduction gear; 15. Reduction spring; 16. Reduction friction pad; 17. Damping connecting rod; 18. Damping spring; 19. Damping block; 20. Spring fixing seat; 21. Damping outer shell; 22. Self-locking support rod; 23. Self-locking block; 24. Self-locking outer shell. 25. Self-locking ball bearing 26. Labyrinth groove 27. Moving part 28. Self-locking part 29. Limiting groove 20. Spring rotating sleeve 30. First locking pin hole 31. Second locking pin hole 32. Locking pin shaft 33. Abutting part 34. First slot 35. First buckle 36. First washer 37. Damping strip 38. Second slot 39. Second buckle 40. Third slot 41. Fixed connector 42. Self-locking connector 43. Self-locking connector 44. End face 45. Connecting screw 46. Self-locking locking part 47. Self-locking spring 48. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments. These embodiments are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0030] Example:

[0031] like Figures 1-9 As shown, a car sunshade roller assembly that can be pulled and stopped includes a hollow shaft 1, one end of which is provided with a roller core 2, and the other end of which is provided with a damping component 3 and a self-locking component 4.

[0032] The inner core 2 of the reel includes a shock-absorbing tube 5 and an inner core spring 6. One end of the shock-absorbing tube 5 is provided with a spring fixing terminal 7, and the other end of the shock-absorbing tube 5 is provided with a spring anti-rotation terminal 8. The spring fixing terminal 7 includes a terminal base 9 and a terminal connector 10. A large gear 11 is sleeved on the terminal connector 10. A gear shaft 12 is provided on the terminal base 9. One end of the gear shaft 12 is fixedly connected to the terminal base 9, and the other end of the gear shaft 12 is provided with an end cap 13. A reduction gear 14, a reduction spring 15, and a reduction friction pad 16 are sleeved on the gear shaft 12. The reduction spring 15 is located between the end cap 13 and the reduction gear 14, and the reduction friction pad 16 is located between the reduction gear 14 and the terminal base 9. The reduction gear 14 meshes with the large gear 11. The inner core spring 6 is sleeved inside the shock-absorbing tube 5. One end of the inner core spring 6 is sleeved on the spring anti-rotation terminal 8, and the other end of the inner core spring 6 is sleeved on the terminal connector 10.

[0033] The damping assembly 3 includes a damping connecting rod 17, a damping spring 18, and a damping block 19. The damping spring 18 is sleeved on one end of the damping connecting rod 17, and a spring fixing seat 20 is provided outside the damping spring 18. The outer wall of the spring fixing seat 20 is connected to the inner wall of the hollow shaft 1. The damping block 19 is sleeved on the other end of the damping connecting rod 17, and a damping outer shell 21 is provided outside the damping block 19.

[0034] The self-locking assembly 4 includes a self-locking support rod 22, a self-locking block 23, a self-locking outer shell 24, and a self-locking ball 25. The self-locking block 23 is sleeved on the self-locking support rod 22. A labyrinth groove 26 is formed on the outer peripheral surface of the self-locking block 23. The labyrinth groove 26 includes a communicating moving part 27 and a self-locking part 28. The self-locking outer shell 24 is disposed outside the self-locking block 23. A limit groove 29 is provided on the inner wall of the self-locking outer shell 24. One end of the rotation axis of the self-locking ball 25 is arc-shaped. The self-locking ball 25 is located in the labyrinth groove 26. The other end of the rotating shaft is located in the limiting groove 29. The self-locking outer shell 24 is embedded in the hollow shaft 1 through the limiting groove 29. The outer wall of the self-locking outer shell 24 is connected to the inner wall of the hollow shaft 1. The hollow shaft 1 drives the self-locking outer shell 24 to rotate. When rotating, the limiting groove 29 drives the self-locking ball 25 to slide in the moving part 27. When self-locking, the limiting groove 29 drives the self-locking ball 25 to be limited in the self-locking part 28.

[0035] Preferred, such as Figures 2-3 As shown, the terminal connector 10 is fitted with a spring rotating sleeve 30. One end of the spring rotating sleeve 30 is provided with a first locking pin hole 31, and the other end of the spring rotating sleeve 30 is located between the spring fixing terminal 7 and the shock-absorbing tube 5.

[0036] More preferably, the end of the spring fixing terminal 7 away from the inner core spring 6 is provided with a second locking pin hole 32, the second locking pin hole 32 is correspondingly provided with the first locking pin hole 31, and a locking pin shaft 33 is provided in the first locking pin hole 31 and the second locking pin hole 32.

[0037] Specifically, one end of the sunshade is fixed to the outside of the hollow shaft 1. When the sunshade is pulled, the damping component 3 is activated, causing the shock absorber 5 to rotate. Simultaneously, under the action of the reduction gear 14 and the large gear 11, the damping component 3 provides synchronous damping on both sides. After the sunshade is unfolded to the required unfolding length, it is manually fine-tuned to align the first locking pin hole 31 and the second locking pin hole 32. The locking pin shaft 33 is then inserted to fix it, avoiding mechanical friction fixation using only the damping component 3 and extending the service life of the damping component 3.

[0038] Preferred, such as Figures 4-5 As shown, the damping connecting rod 17 has a mating part 34 in the middle, and the end of the damping connecting rod 17 with the damping spring 18 has a first slot 35. The first slot 35 has a first buckle 36. One end of the spring fixing seat 20 is in contact with the mating part 34, and the other end of the spring fixing seat 20 is in contact with the first buckle 36.

[0039] Specifically, during use, after installing the damping spring 18 inside the spring fixing seat 20, the spring fixing seat 20 and the damping spring 18 are sleeved on the damping connecting rod 17. The damping spring 18 is located between the spring fixing seat 20 and the damping connecting rod 17. Then, the first buckle 36 is snapped into the first slot 35. At this time, the spring fixing seat 20 is fixed between the first buckle 36 and the abutting part 34 of the damping connecting rod 17. When the sunshade on the hollow shaft rod 1 rolls back, the hollow shaft rod 1 drives the spring fixing seat 20 to rotate, which in turn drives the damping connecting rod 17 to rotate. The damping spring 18 plays a role in shock absorption.

[0040] More specifically, a first washer 37 is provided between the spring fixing seat 20 and the first buckle 36.

[0041] Furthermore, by setting the first gasket 37, the contact area is mainly increased, the pressure is reduced, loosening is prevented, and the spring fixing seat 20 and the damping connecting rod 17 are protected.

[0042] More preferably, the damping connecting rod 17 is provided with a damping strip 38 on the outer periphery of one end of the damping block 19, and the inner wall of the damping block 19 is provided with a second slot 39 that cooperates with the damping strip 38. The outer wall of the damping block 19 is in contact with the inner wall of the damping shell 21.

[0043] Specifically, a plurality of damping strips 38 are provided along the axial direction of the damping connecting rod 17. The damping strips 38 are distributed on the outer circumferential surface of the damping connecting rod 17 and are engaged with the damping strips 38 through the second slot 39 on the inner wall of the damping block 19, thereby fitting the damping block 19 onto the damping connecting rod 17.

[0044] More preferably, the damping connecting rod 17 has a second buckle 40 extending along the axis at the end of the damping block 19, one end of the damping shell 21 is in contact with the abutment part 34, and the other end of the damping shell 21 is provided with a third slot 41, and the second buckle 40 is engaged in the third slot 41.

[0045] Specifically, the damping housing 21 is fitted onto the damping connecting rod 17, and then the second buckle 40 is engaged in the third slot 41. At this time, the damping housing 21 is limited between the second buckle 40 and the abutting part 34 of the damping connecting rod 17, and the damping block 19 is located between the damping housing 21 and the damping connecting rod 17.

[0046] More specifically, the end of the damping housing 21 with the third slot 41 extends outward to be provided with a fixed connector 42, which is connected to the self-locking component 4.

[0047] Furthermore, when the damping connecting rod 17 rotates, the damping block 19 rotates together with the damping connecting rod 17, and friction is generated between the inner wall of the damping housing 21 and the outer wall of the damping block 19, thereby reducing the rotation speed of the sunshade.

[0048] Preferred, such as Figures 6-9 As shown, one end of the self-locking support rod 22 is provided with a self-locking connecting seat 43, and the other end of the self-locking support rod 22 is provided with a self-locking connecting head 44. One end of the self-locking outer shell 24 abuts against the self-locking connecting seat 43, and the other end of the self-locking outer shell 24 is provided with an end face 45. The self-locking outer shell 24 and the self-locking connecting seat 43 form a hollow structure.

[0049] Specifically, the self-locking connector 44 is connected to the fixed connector 42 by the connecting screw 46. In actual use, it is used in conjunction with the connecting damping component 3. The combination of the self-locking component 4 and the damping component 3 enables safer use.

[0050] Preferably, the self-locking block 23 is disposed within the hollow structure, the moving part 27 is distributed along the radial outer circumferential surface of the self-locking block 23, the self-locking part 28 extends along the axial outer circumferential surface of the self-locking block 23, and a self-locking locking part 47 is provided at the communication between the self-locking part 28 and the moving part 27; a self-locking spring 48 is sleeved on the self-locking support rod 22 and is coaxially disposed with the self-locking block 23, and the self-locking spring 48 is disposed within the hollow structure.

[0051] Specifically, in this embodiment, the moving part 27 is connected end to end along the radial outer circumferential surface of the self-locking block 23. When rotating, the limiting groove 29 drives the self-locking ball 25 to slide along the radial outer circumferential surface of the self-locking block 23 within the moving part 27. When self-locking, the limiting groove 29 drives the self-locking ball 25 to move into the self-locking part 28 and is limited by the self-locking locking part 47.

[0052] Specifically, one end of the self-locking spring 48 is connected to the self-locking block 23, and the other end of the self-locking spring 48 is in contact with the end face 45 of the self-locking housing 24.

[0053] More specifically, the self-locking spring 48 serves to dampen shocks and prevent damage to the self-locking block 23.

[0054] Furthermore, in specific implementation, the self-locking component 4 is first fitted onto the self-locking support rod 22 in sequence, consisting of the self-locking block 23, the self-locking spring 48, and the self-locking outer shell 24. Then, the self-locking outer shell 24 is fitted over the self-locking block 23 and the self-locking spring 48. One end of the rotating shaft of the self-locking ball 25 is set in the labyrinth groove 26, and the other end of the rotating shaft of the self-locking ball 25 is set in the limiting groove 29. The self-locking outer shell 24 is then embedded in the hollow shaft 1, such that the end of the self-locking outer shell 24 near the self-locking connecting seat 43 abuts against the self-locking connecting seat 43, and the end of the self-locking spring 48 away from the self-locking block 23 abuts against the end face 45 of the self-locking outer shell 24. The sunshade is then mounted on the hollow shaft 1. This invention has a simple structure, is easy to install, has a self-locking function, and can be pulled and stopped at will.

[0055] This invention avoids the problem of using only the damping component 3 for fixing, and solves the problem of sunshade damage and safety caused by the fast rewind speed when the sunshade rolls back. It also reduces the wear of the damping component 3 and improves its service life. At the same time, it adopts the self-locking component 4, which has a self-locking function and can be pulled and stopped at will.

[0056] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A car sunshade roller assembly that can be pulled and stopped at will, characterized in that: It includes a hollow shaft, one end of which is provided with a scroll core, and the other end of which is provided with a damping component and a self-locking component; The inner core of the reel includes a shock-absorbing tube and an inner core spring. One end of the shock-absorbing tube is provided with a spring fixing terminal, and the other end of the shock-absorbing tube is provided with a spring anti-rotation terminal. The spring fixing terminal includes a terminal base and a terminal connector. A large gear is sleeved on the terminal connector. A gear shaft is provided on the terminal base. One end of the gear shaft is fixedly connected to the terminal base, and the other end of the gear shaft is provided with an end cap. A reduction gear, a reduction spring, and a reduction friction pad are sleeved on the gear shaft. The reduction spring is located between the end cap and the reduction gear, and the reduction friction pad is located between the reduction gear and the terminal base. The reduction gear meshes with the large gear. The inner core spring is sleeved inside the shock-absorbing tube. One end of the inner core spring is sleeved on the spring anti-rotation terminal, and the other end of the inner core spring is sleeved on the terminal connector. The damping assembly includes a damping connecting rod, a damping spring, and a damping block. The damping spring is sleeved on one end of the damping connecting rod, and a spring fixing seat is provided outside the damping spring. The outer wall of the spring fixing seat is connected to the inner wall of the hollow shaft. The damping block is sleeved on the other end of the damping connecting rod, and a damping shell is provided outside the damping block. The self-locking assembly includes a self-locking support rod, a self-locking block, a self-locking outer shell, and a self-locking ball. The self-locking block is sleeved on the self-locking support rod, and a labyrinth groove is formed on the outer peripheral surface of the self-locking block. The labyrinth groove includes a communicating moving part and a self-locking part. The self-locking outer shell is disposed outside the self-locking block, and a limiting groove is provided on the inner wall of the self-locking outer shell. One end of the self-locking ball's rotating shaft is located in the labyrinth groove, and the other end of the self-locking ball's rotating shaft is located in the limiting groove. The self-locking outer shell is embedded in the hollow shaft through the limiting groove. The outer wall of the self-locking outer shell is connected to the inner wall of the hollow shaft. The hollow shaft drives the self-locking outer shell to rotate. When rotating, the limiting groove drives the self-locking ball to slide in the moving part. When self-locking, the limiting groove drives the self-locking ball to be limited in the self-locking part.

2. The car sunshade roller assembly that can be pulled and stopped as described in claim 1, characterized in that: The terminal connector is fitted with a spring rotating sleeve. One end of the spring rotating sleeve is provided with a first locking pin hole, and the other end of the spring rotating sleeve is located between the spring fixing terminal and the shock absorber tube.

3. The car sunshade roller assembly that can be pulled and stopped as described in claim 2, characterized in that: The end of the spring fixing terminal away from the inner core spring is provided with a second locking pin hole, the second locking pin hole is provided corresponding to the first locking pin hole, and a locking pin shaft is provided in the first locking pin hole and the second locking pin hole.

4. The car sunshade roller assembly that can be pulled and stopped as described in claim 1, characterized in that: The damping connecting rod has a mating part in the middle, and the end of the damping connecting rod with the damping spring has a first slot. A first buckle is provided in the first slot. One end of the spring fixing seat is in contact with the mating part, and the other end of the spring fixing seat is in contact with the first buckle.

5. The car sunshade roller assembly that can be pulled and stopped as described in claim 1, characterized in that: The damping connecting rod has a damping strip on the outer periphery of one end where the damping block is located. The inner wall of the damping block has a second groove that cooperates with the damping strip. The outer wall of the damping block is in contact with the inner wall of the damping shell.

6. The car sunshade roller assembly that can be pulled and stopped as described in claim 1, characterized in that: The damping connecting rod has a second buckle extending along the axis at the end of the damping block. One end of the damping shell is in contact with the abutting part, and the other end of the damping shell is provided with a third slot, in which the second buckle is engaged.

7. The car sunshade roller assembly that can be pulled and stopped as described in claim 1, characterized in that: One end of the self-locking support rod is provided with a self-locking connecting seat, and the other end of the self-locking support rod is provided with a self-locking connecting head. One end of the self-locking outer shell abuts against the self-locking connecting seat, and the other end of the self-locking outer shell is provided with an end face. The self-locking outer shell and the self-locking connecting seat form a hollow structure.

8. The car sunshade roller assembly that can be pulled and stopped as described in claim 7, characterized in that: The self-locking block is disposed within a hollow structure. The moving part is distributed along the radial outer circumference of the self-locking block, and the self-locking part extends along the axial outer circumference of the self-locking block. A self-locking locking part is provided at the connection between the self-locking part and the moving part. A self-locking spring is sleeved on the self-locking support rod and is coaxially disposed with the self-locking block. The self-locking spring is disposed within the hollow structure.

Images