Sun visor support

Abstract

The application relates to a sun visor support and relates to the technical field of sun visor structures; the sun visor support comprises a supporting shaft, an elastic piece, a rotating joint fixedly connected with a vehicle body, and a supporting shaft bushing arranged in the rotating joint; one end of the supporting shaft is used for being rotationally connected with a sun visor, the other end of the supporting shaft is arranged in the supporting shaft bushing, and a mounting sleeve is sleeved on the supporting shaft; the supporting shaft bushing is rotationally arranged outside the mounting sleeve and is limitingly clamped with the rotating joint; one end of the elastic piece is mounted on the end of the supporting shaft far from the sun visor, the other end of the elastic piece is connected to the side of the rotating joint far from the mounting sleeve, and the elastic piece is in a compressed state. The application has the effect of reducing abrasion and shaking of the sun visor as much as possible during rotation.

Description

Technical Field

[0001] This application relates to the technical field of sunshade structures, and in particular to a sunshade support. Background Technology

[0002] The car sun visor is mounted on the roof of the vehicle via a support assembly that integrates a rotating joint. The core function of this assembly is to allow the sun visor to smoothly and stably switch between multiple positions, such as being stowed in the roof, flipped down to the windshield, and flipped sideways to the door window.

[0003] Currently, the mainstream design scheme to achieve this rotation function generally adopts a shaft-sleeve structure, that is, a support shaft fixed to the sun visor is inserted into a joint bushing fixed to the vehicle body, and the rotation is achieved through the sliding or rotational cooperation between the two.

[0004] However, after long-term, high-frequency use, a small amount of axial clearance will develop between the supporting shaft and bushing and other mating parts due to friction and wear. The accumulation of axial clearance will directly cause the sun visor to move axially in a fixed position. Specifically, the sun visor cannot remain stable under gravity or vibration, affecting the stability of the shading effect and giving people a visual impression of looseness and poor quality; or, during flipping or bumpy driving, the parts with gaps will experience slight impacts and friction. Utility Model Content

[0005] In order to minimize wear and wobbling during the rotation of the sun visor, this application provides a sun visor support.

[0006] The sunshade support provided in this application adopts the following technical solution: A sun visor support includes a support shaft, an elastic element, a rotating joint fixedly connected to a vehicle body, and a support shaft bushing disposed within the rotating joint. One end of the support shaft is rotatably connected to the sun visor, and the other end of the support shaft passes through the support shaft bushing, with a mounting sleeve fitted on the support shaft. The support shaft bushing is rotatably fitted onto the outside of the mounting sleeve and is locked in place by the rotating joint. One end of the elastic element is installed on the end of the support shaft away from the sun visor, and the other end of the elastic element is connected to the side of the rotating joint away from the mounting sleeve, with the elastic element in a compressed state.

[0007] By adopting the above technical solution, a continuous clamping force is established between the support bushing, mounting sleeve, and rotating joint through the preload of the elastic element. This basic structure can automatically compensate for assembly tolerances and wear between parts, thereby effectively reducing the shaking and abnormal noise of the sun visor during use, while providing a reliable support foundation for the stable rotation of the sun visor.

[0008] Preferably, the mounting sleeve has an abutment portion, and the rotating joint abuts against the abutment portion via the support bushing.

[0009] By adopting the above technical solution and setting the abutment part, the clamping force can be distributed more evenly, thereby reducing local wear under long-term use.

[0010] Preferably, the mounting sleeve is provided with a limiting protrusion, and the rotating joint is provided with a sliding groove, and the limiting protrusion is slidably disposed in the sliding groove.

[0011] By adopting the above technical solution, a precise and reliable rigid limit on the rotation angle of the sun visor can be achieved, preventing excessive rotation.

[0012] Preferably, the mounting sleeve is provided with a limiting ring on its outer circumferential direction, and the end of the support bushing away from the elastic element is provided with a first limiting groove, and the limiting ring is engaged in the first limiting groove.

[0013] By adopting the above technical solution, the axial relative positioning of the mounting sleeve and the support bushing is achieved. This ensures that these two core rotating components are always in the correct assembly position, preventing axial separation during use, and guaranteeing the stability of the rotating pair.

[0014] Preferably, the support bushing has a second locking portion extending circumferentially on the outer side away from the elastic element, and the rotating joint has a second limiting groove circumferentially formed at one end away from the elastic element, with the second locking portion locking into the second limiting groove.

[0015] By adopting the above technical solution, radial and circumferential positioning of the support bushing at one end of the rotating joint is achieved. This helps prevent the support bushing from wobbling or rotating within the joint, ensuring the stability of the connection between the support bushing and the rotating joint.

[0016] Preferably, the outer side of the support bushing is provided with a third locking part symmetrically along its own axis, and the inner wall of the rotating joint is provided with a third limiting groove symmetrically along its own axis, and the third locking part is locked in the third limiting groove.

[0017] By adopting the above technical solution, the axial anti-dislodgement and circumferential anti-rotation of the support bushing within the rotating joint are achieved.

[0018] Preferably, the inner wall of the rotating joint near the elastic member is provided with a limiting part in the circumferential direction, and the end of the support bushing near the elastic member abuts against the limiting part on the side away from the elastic member.

[0019] By adopting the above technical solution, the limiting part provides a clear axial positioning for the support bushing.

[0020] Preferably, the device also includes a gasket, which is sleeved outside the support shaft and disposed between the elastic element and the rotating joint.

[0021] By adopting the above technical solution and setting shims, the preload of the elastic element can be distributed more evenly, protecting the end face of the rotating joint from wear by the elastic element and improving the durability and service life of the product.

[0022] Preferably, the mounting sleeve has a first snap-fit ​​portion symmetrically provided at the end near the elastic member, and the gasket has a fourth limiting groove that snaps into the first snap-fit ​​portion.

[0023] By adopting the above technical solution, it is ensured that there will be no relative rotation between the gasket and the mounting sleeve, thus guaranteeing the reliability and stability of the force transmission path.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The preload of the elastic element pushes the shim closer to the rotating joint, which in turn pushes the rotating joint against the support bushing and then against the contact part, ensuring the firmness of the sunshade installation and the smoothness of rotation; 2. The limiting protrusion slides within the sliding groove of the rotating joint, which can limit the rotation angle of the support shaft and accurately control the rotation angle of the sun visor; 3. The support bushing and the rotating joint are limited by a snap-fit ​​structure, and the limiting part of the rotating joint restricts the axial movement range of the support bushing to prevent the sun visor from shaking and making abnormal noises during use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the support shaft and mounting sleeve in the embodiments of this application; Figure 3 This is a schematic diagram of the support bushing structure in an embodiment of this application; Figure 4 This is a schematic diagram of the rotating joint in an embodiment of this application; Figure 5 This is a structural schematic diagram of the joint at another angle in an embodiment of this application; Figure 6 This is a schematic diagram of the gasket structure in an embodiment of this application; Figure 7 This is a schematic diagram of the gasket from another angle in an embodiment of this application.

[0026] Reference numerals: 1. Rotating joint; 11. Sliding groove; 12. Second limiting groove; 13. Limiting part; 14. Third limiting groove; 15. First positioning part; 2. Support shaft bushing; 21. First limiting groove; 22. Second locking part; 23. Third locking part; 3. Support shaft; 31. First connecting shaft; 32. Second connecting shaft; 4. Mounting sleeve; 41. First sleeve; 42. Second sleeve; 43. Abutting part; 44. Limiting protrusion; 45. Limiting ring; 46. First locking part; 5. Elastic element; 6. Gasket; 61. Relief hole; 62. Fourth limiting groove; 63. Second positioning part; 64. Sliding groove; 65. Fixing protrusion. Detailed Implementation

[0027] The following combination Figures 1-7 This application will be described in further detail.

[0028] This application discloses a sunshade support.

[0029] Reference Figure 1 A sun visor support includes a rotating joint 1, a support bushing 2, a support shaft 3, and an elastic element 5. The rotating joint 1 is fixedly connected to the vehicle body, and the support bushing 2 is installed inside the rotating joint 1. One end of the support shaft 3 is rotatably connected to the sun visor, and the other end of the support shaft 3 passes through the support bushing 2 and is fixedly connected to the elastic element 5. A mounting sleeve 4 is fitted on the support shaft 3. A gasket 6 is provided between the elastic element 5 and the support bushing 2. The support bushing 2 is rotatably fitted onto the outside of the mounting sleeve 4 and is limited and engaged with the rotating joint 1, while the elastic element 5 is in a compressed state. The gasket 6 abuts against the rotating joint 1, and under the action of the elastic element 5, pushes the support bushing 2 against the mounting sleeve 4, thereby reducing wear and shaking during the rotation of the sun visor.

[0030] Reference Figure 1 The support shaft 3 is generally L-shaped cylindrical bent tube, and includes an integrally formed first connecting shaft 31 and second connecting shaft 32. The first connecting shaft 31 is rotatably connected to the sun visor, and the second connecting shaft 32 is located inside the rotating joint 1. The mounting sleeve 4 includes an integrally formed first sleeve 41 and second sleeve 42. The first sleeve 41 is fitted onto the connection between the first connecting shaft 31 and the second connecting shaft 32, and the second sleeve 42 is fitted onto the outside of the second connecting shaft 32. The cross-sectional diameter of the first sleeve 41 gradually increases near the end of the second sleeve 42 and forms an abutment portion 43, which is generally conical. A limiting ring 45 is also circumferentially provided on the outer side of the second sleeve 42, and the limiting ring 45 is located on the side of the limiting protrusion 44 away from the abutment portion 43. Two first snap-fit ​​portions 46 also extend symmetrically from the end of the second sleeve away from the abutment portion 43.

[0031] Reference Figure 2 and Figure 3The support bushing 2 is generally cylindrical and is rotatably fitted onto the outside of the mounting sleeve 4. A first limiting groove 21 is circumferentially formed on the inner side of the end of the support bushing 2 near the abutment portion 43, and a limiting ring 45 is engaged within the first limiting groove 21 to restrict the installation position of the support bushing 2. Multiple second engaging portions 22 extend circumferentially from the outer side of the support bushing 2 near the abutment portion 43, and these multiple second engaging portions 22 are evenly spaced.

[0032] Reference Figure 3 and Figure 4 The rotating joint 1 is generally cylindrical and is located on the outside of the support bushing 2. A second limiting groove 12 is circumferentially formed at one end of the rotating joint 1 near the abutment portion 43, and the second limiting groove 12 engages with the second locking portion 22. When the rotating joint 1 needs to be installed on the outside of the support bushing 2, the multiple second locking portions 22 can deform according to the set spacing, allowing the support bushing 2 to enter the interior of the rotating joint 1, thereby enabling the second locking portions 22 to engage within the second limiting groove 12, achieving the engaging fit between the rotating joint 1 and the support bushing 2.

[0033] A limiting portion 13 extends circumferentially from the inner wall of the rotating joint 1 at the end away from the abutment portion 43. When the support bushing 2 is installed in the rotating joint 1, the end of the support bushing 2 away from the abutment portion 43 abuts against the side of the limiting portion 13 away from the elastic member 5.

[0034] Based on this, a third locking portion 23 is symmetrically provided on the outer side of the support bushing 2 along its own axial direction. A third limiting groove 14 is symmetrically provided on the inner wall of the rotating joint 1 along its own axial direction, and the third locking portion 23 is locked in the third limiting groove 14, thereby preventing the support bushing 2 from rotating circumferentially inside the rotating joint 1. Furthermore, the third locking portion 23 and the first locking portion 46 are staggered, which can effectively prevent assembly interference, allowing the first locking portion 46 to pass smoothly through the support bushing 2 and align and lock with the fourth limiting groove 62 on the gasket 6.

[0035] Reference Figure 2 and Figure 4 Preferably, the second seat 42 has a limiting protrusion 44 on the side near the abutment portion 43, and the rotating joint 1 has a sliding groove 11 on the side near the abutment portion 43. The limiting protrusion 44 can slide within the sliding groove 11, thereby limiting the rotation angle of the support shaft 3. When the sun visor is flipped to the side of the vehicle body, the limiting protrusion 44 moves synchronously with the direction of rotation. When the limiting protrusion 44 collides with the side of the sliding groove 11 of the rotating joint 1 near the side of the vehicle body, it indicates that the rotation angle of the sun visor has been reached. When the sun visor is flipped to the windshield position, the limiting protrusion 44 moves synchronously with the direction of rotation. When the limiting protrusion 44 collides with the side of the sliding groove 11 of the rotating joint 1 near the windshield, it indicates that the rotation angle of the sun visor has been reached.

[0036] Reference Figure 5 and Figure 6 The gasket 6 is circular in shape, with a clearance hole 61 at its center, through which the support shaft 3 passes. Two fourth limiting grooves 62 are also provided on the side of the gasket 6 near the rotating joint 1. These four fourth limiting grooves 62 are located symmetrically on both sides of the clearance hole 61 and communicate with it. The first engaging part 46 engages within the fourth limiting groove 62. A first positioning part 15 is provided on the bottom of the rotating joint 1 near the gasket 6, and a second positioning part 63 is provided on the side of the gasket 6 near the rotating joint 1. A sliding groove 64 is also provided on the side of the gasket 6 near the rotating joint 1. The second positioning part 63 is fixedly installed at the bottom of the sliding groove 64, and the first positioning part 15 and the sliding groove 64 are slidably connected. When the sun visor is rotated near the side window, the first positioning part 15 can rotate and abut against the second positioning part 63.

[0037] Reference Figure 7 Furthermore, the gasket 6 has a fixing protrusion 65 on the side away from the rotating joint 1. The end of the second connecting shaft 32 away from the rotating joint 1 and one end of the elastic member 5 are riveted with a flange, and the other end of the elastic member 5 is connected to the fixing protrusion 65.

[0038] During installation, the support bushing 2 is first installed inside the rotating joint 1. First, align the third locking part 23 with the third limiting groove 14, so that the third locking part 23 is engaged within the third limiting groove 14. Then, engage the second locking part 22 within the second limiting groove 12. Next, insert the second connecting shaft 32 into the support bushing 2 until the limiting ring 45 is engaged within the first limiting groove 21. Then, place the gasket 6 onto the second connecting shaft 32 and bring the gasket 6 close to the rotating joint 1. Finally, place the elastic element 5 outside the second connecting shaft 32 and install the elastic element 5, ensuring that the elastic element 5 is in the installed state. The preload of the elastic element 5 pushes the gasket 6 closer to the rotating joint 1, thereby pushing the rotating joint 1 against the support bushing 2 and then against the abutment part 43.

[0039] The implementation principle of a sun visor support in this application embodiment is as follows: A continuous preload is provided by the elastic element 5 in a compressed state, eliminating assembly gaps between components and effectively reducing swaying during sun visor use. When the sun visor is rotated, the support shaft 3 drives the mounting sleeve 4 to rotate smoothly within the support shaft bushing 2. The limiting protrusion 44 on it slides within the sliding groove 11 of the rotating joint 1, achieving precise mechanical limiting for forward and lateral rotation by contacting the groove wall.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sunshade support, characterized in that: The device includes a support shaft (3), an elastic element (5), a rotating joint (1) fixedly connected to the vehicle body, and a support shaft bushing (2) disposed within the rotating joint (1). One end of the support shaft (3) is used to rotatably connect with the sun visor, and the other end of the support shaft (3) passes through the support shaft bushing (2). A mounting sleeve (4) is fitted on the support shaft (3). The support shaft bushing (2) is rotatably fitted on the outside of the mounting sleeve (4) and is limited and engaged with the rotating joint (1). One end of the elastic element (5) is installed on the end of the support shaft (3) away from the sun visor, and the other end of the elastic element (5) is connected to the side of the rotating joint (1) away from the mounting sleeve (4). The elastic element (5) is in a compressed state.

2. A sunshade support according to claim 1, characterized in that: The mounting sleeve (4) has an abutment portion (43), and the rotating joint (1) abuts against the abutment portion (43) through the support bushing (2).

3. A sunshade support according to claim 2, characterized in that: The mounting sleeve (4) is provided with a limiting protrusion (44); the end of the rotating joint (1) near the sleeve abuts against the abutting part (43) and is provided with a sliding groove (11), and the limiting protrusion (44) is slidably disposed in the sliding groove (11).

4. A sunshade support according to claim 1, characterized in that: The mounting sleeve (4) is provided with a limiting ring (45) on its outer circumferential side. The end of the support bushing (2) away from the elastic element (5) is provided with a first limiting groove (21). The limiting ring (45) is engaged in the first limiting groove (21).

5. A sunshade support according to claim 1, characterized in that: The support bushing (2) extends circumferentially to the outer side away from the elastic member (5) and has a second locking part (22). The rotating joint (1) is provided with a second limiting groove (12) circumferentially at one end away from the elastic member (5), and the second locking part (22) is locked in the second limiting groove (12).

6. A sunshade support according to claim 1, characterized in that: The outer side of the support bushing (2) is symmetrically provided with a third locking part (23) along its own axis, and the inner wall of the rotating joint (1) is symmetrically provided with a third limiting groove (14) along its own axis. The third locking part (23) is locked in the third limiting groove (14).

7. A sunshade support according to claim 1, characterized in that: The rotating joint (1) has a limiting part (13) circumferentially provided on the inner wall of one end near the elastic member (5), and the support bushing (2) abuts against the side of the limiting part (13) away from the elastic member (5) at one end near the elastic member (5).

8. A sunshade support according to claim 1, characterized in that: It also includes a gasket (6), which is sleeved on the outside of the support shaft (3) and is located between the elastic member (5) and the rotating joint (1).

9. A sunshade support according to claim 8, characterized in that: The mounting sleeve is symmetrically provided with a first snap-fit ​​portion (46) at the end near the elastic member (5), and the gasket (6) is provided with a fourth limiting groove (62) that snaps into the first snap-fit ​​portion (46).

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