A mounting structure for an automobile rearview mirror folder

Abstract

The application discloses a mounting structure for a car rearview mirror folder, which comprises a base for fixed connection with a vehicle, an inner cavity of the base, symmetrically arranged protrusions on the inner wall of the cavity, a clamping groove on the lower side of each protrusion, a rotating assembly for connection with the base and forming a central shaft supporting an outer visual unit housing in a coupled state, and an anti-reverse mechanism comprising a boss integrally formed on the rotating assembly, the boss being matched with the clamping groove on the base, and the profile of the boss comprising a circular arc guide-in portion, a gentle matching portion, a mesa portion and a vertical edge portion. The application has the advantages of simplified structure, reduced cost, smooth assembly in place, and exact anti-reverse locking effect.

Description

Technical Field

[0001] This application relates to the field of vehicle rearview mirror technology, and in particular to a mounting structure for a car rearview mirror folder. Background Technology

[0002] Vehicle exterior vision units, such as rearview mirrors, generally require mounting structures for automotive rearview mirror folding mechanisms that offer both quick assembly and reliable locking capabilities. Bayonet connections are widely used due to their ease of operation. This method typically includes a base fixed to the vehicle body and a rotating assembly with protrusions and grooves, achieving axial locking of the components through axial insertion and rotation at a specific angle.

[0003] However, this structure is prone to reverse detachment under vehicle vibration, posing a safety risk. Existing anti-reverse mechanisms suffer from two main problems: first, the use of independent locking components, such as additional clips or locking plates, increases structural complexity, the number of parts, and assembly costs; second, the use of compressible filling elements or structures relying on plastic deformation, which result in unclear positioning during assembly and frequent failure after disassembly due to irreversible plastic deformation, leading to poor maintainability. More importantly, existing solutions generally lack an integrated anti-reverse structure that simultaneously ensures smooth entry, precise positioning feedback, and rigid stopping. Most designs fail to optimize the guide surface of the anti-reverse protrusion and the stop plane in a coordinated manner, resulting in high assembly resistance, unclear positioning feedback, or insufficient reliability of the anti-reverse mechanical interlock.

[0004] Therefore, there is an urgent need for an installation structure for automotive rearview mirror folding devices that is simple in structure, low in cost, and can provide a smooth assembly feel, clear positioning indication, and high strength anti-reverse capability. Utility Model Content

[0005] This application proposes a mounting structure for a car rearview mirror folding device, which aims to simplify the structure and reduce costs while achieving a smooth assembly feel and a precise anti-reverse locking effect.

[0006] Specifically, the mounting structure for the automotive rearview mirror folding unit uses a base and rotating assembly that form a bayonet connection through protrusions and grooves. Quick assembly and axial locking are achieved through axial insertion and small-angle rotation. The core of this design lies in the innovative use of a specific contoured boss integrally molded onto the rotating assembly. This boss integrates guiding, mating, and rigid stopping functions. During the rotation of the rotating assembly to the locked position, the guide surface at the front end of the boss engages with the side wall of the base's slot; once in place, the vertical stop surface at the rear end of the boss rigidly interlocks with the slot's blocking surface.

[0007] The mounting structure for a car rearview mirror folding device provided in this application adopts the following technical solution: A mounting structure for a car rearview mirror folding device includes: The base is used to fix it to the vehicle. It has a cavity inside, and the inner wall of the cavity is symmetrically provided with protrusions. Each protrusion has a slot on its lower side. A rotating assembly is used to connect with the base and, in the coupled state, form a central axis supporting the outer vision unit housing; The base and the rotating assembly are provided with a pair of protrusions and grooves that cooperate with each other, so that the rotating assembly can be inserted into the base at a first angular position to achieve initial engagement, and pivot from the first angular position to a second angular position, so as to achieve axial locking of the rotating assembly relative to the base through the cooperation of the pair of protrusions and grooves. An anti-reverse mechanism includes a boss integrally formed on the rotating component. The boss engages with a slot on the base. The outline of the boss includes an arc-shaped guide portion, a smooth engagement portion, a platform portion, and a vertical edge portion. The arc-shaped guide portion is located at the front end facing the direction of rotation. The platform portion protrudes from the surface of the rotating component. The vertical edge portion is located on the side of the platform portion near the edge of the rotating component, forming a vertical stop surface that directly engages with the blocking surface of the slot. The boss is configured such that when the rotating assembly pivots from the first angular position to the second angular position, its arc-shaped guide portion and the platform portion engage with the side wall of the slot, and then the vertical edge portion is inserted into the slot.

[0008] By adopting the above technical solution, the base and the rotating component form a bayonet connection through the protrusions and grooves on them. During assembly, it is only necessary to insert the rotating component axially into the base and then rotate it a small angle to achieve quick assembly and axial locking. The core of this structure lies in its highly integrated anti-reverse mechanism, which is achieved by a specific contoured protrusion integrally formed on the rotating component and a groove on the base. The contour of the protrusion has been optimized, with an arc-shaped guide portion at the front end and a vertical edge at the rear end. When the rotating component pivots from the first angle position to the second angle position, the arc-shaped guide portion and the inclined surface of the groove... The sidewalls contact and create a smooth mutual fit; when the rotating component rotates to the second angle position, its vertical edge engages in the slot, forming a rigid interlock with the blocking surface of the slot as a vertical stop surface. This design, which integrates guiding, engaging, and stopping functions into a series of optimized contours, fundamentally solves the problems of complex structure, unclear positioning, and insufficient reliability of existing solutions. It not only simplifies the overall construction and reduces costs through the integrated structure, but also makes the assembly process smooth and labor-saving, and provides feedback when engaging, clearly indicating that the assembly is in place, ultimately ensuring ultra-high anti-reverse reliability of the connection in a vibration environment.

[0009] Preferably, the rotating assembly includes a support member, the lower end of which extends radially to form a support, and the boss is integrally formed at the edge of the support.

[0010] Preferably, the support is a rounded rectangle, and the protrusion is set near the rounded corner of the support.

[0011] Preferably, the boss is stamped and a boss groove is formed below it.

[0012] Preferably, the boss is stamped so that a boss groove is provided below the boss.

[0013] Preferably, the rotation angle of the rotating component from the first angular position to the second angular position is less than 90 degrees.

[0014] Preferably, the side wall of the slot is provided with an inclined surface, which cooperates with the arc-shaped guide portion of the protrusion.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. A highly integrated and contour-optimized anti-reverse mechanism is provided. By integrating the guiding, mating, and stopping functions onto a single molded boss and optimizing its contour to include a circular arc guide section, a smooth mating section, a platform section, and a vertical edge section, the mechanism effectively solves the problems of complex structure and lack of integrated design in the prior art. While achieving smooth guidance and rigid stopping, it significantly simplifies the overall structure. 2. It achieves a smooth assembly feel and clear positioning indication. The arc-shaped guide part at the front end of the boss cooperates with the inclined side wall of the slot, making the assembly process effortless and smooth; when the boss reaches the second angle position and engages, its vertical edge engages with the slot, providing intuitive tactile feedback, allowing the operator to intuitively and accurately judge whether the assembly is in place, effectively improving the assembly experience; 3. Ensures extremely high anti-reverse reliability. The vertical edge of the rear end of the boss serves as a vertical stop surface. After being inserted into the slot, it forms a rigid straight-face fit with the blocking surface of the slot, constituting a mechanical interlock. This effectively resists continuous vibration during vehicle operation, fundamentally preventing the rotating components from pivoting and loosening in the opposite direction, and significantly improving the safety and reliability of the connection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the mounting structure for the car rearview mirror folding device in this embodiment; Figure 2 This is a schematic diagram of the support component in this embodiment; Figure 3 This is a top view of the support component in this embodiment; Figure 4This is a schematic diagram of the base structure in this embodiment.

[0017] Reference numerals: 1. Base; 11. Cavity; 12. Protrusion; 13. Slot; 14. Base groove; 15. Through hole; 2. Rotating assembly; 21. Main shaft assembly; 211. Mounting housing; 212. Edge protrusion; 2121. Groove; 22. Support component; 221. Support; 222. Boss groove; 223. Boss; 2231. Arc-shaped guide part; 2232. Smooth mating part; 2233. Platform surface; 2234. Vertical edge. Detailed Implementation

[0018] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0019] This application discloses an installation structure for a car rearview mirror folding device.

[0020] Reference Figures 1-4 It includes a base 1 for fixed connection with a vehicle and a rotating assembly 2 for connection with the base 1. The rotating assembly 2 forms a central axis for pivotally supporting the housing of an external vision unit (such as a rearview mirror) in the connected state.

[0021] The base 1 and the rotating assembly 2 are provided with a pair of mutually cooperating protrusions 12 and grooves 2121. During assembly, the rotating assembly 2 can be inserted into the base 1 along the axis at a first angular position, so that the protrusions 12 and grooves 2121 initially engage. Subsequently, the rotating assembly 2 can pivot around the axis from the first angular position to the second angular position. The axial locking of the rotating assembly 2 relative to the base 1 is achieved by the wedge-shaped engagement of the protrusions 12 and grooves 2121. The rotation angle between the first angular position and the second angular position is less than 90 degrees.

[0022] The base 1 has a cavity 11 inside, and the inner wall of the cavity 11 is integrally formed with symmetrical protrusions 12. These protrusions 12 form gaps for the insertion of the rotating component 2. Each protrusion 12 has a slot 13 on its lower side, and the side wall of the slot 13 is also set as an inclined surface. The cavity 11 has a base groove 14 below the protrusions 12, which connects to the bottom of the base 1. The two sides of the base groove 14 correspond to the two sides of the protrusions 12. The bottom end of the base 1 has a through hole 15 near the base groove 14. The two sides of the through hole 15 also correspond to the two sides of the protrusions 12, but the width of the through hole 15 is greater than the width of the protrusions 12. A central hole is formed at the center of the bottom end of the base 1.

[0023] The rotating assembly 2 includes a main shaft component 21 and a support component 22. The support component 22 is axially fixed to the main shaft component 21. The main shaft component 21 includes a mounting housing 211 and a flange protrusion 212. The mounting housing 211 and the flange protrusion 212 are inserted and bolted together. The periphery of the flange protrusion 212 is integrally formed with a cam that cooperates with the protrusion 12 of the base 1. A groove 2121 is formed on the lower side of the cam.

[0024] The lower end of the support component 22 extends radially to form a support 221. The support 221 is a rounded rectangle. The corners of the support 221 are stamped to form a boss 223 structure. The stamping process simultaneously forms a boss groove 222 below the boss 223.

[0025] The core improvement of this application lies in the anti-reverse mechanism, which is composed of the aforementioned protrusion 223 integrally formed on the rotating component 2 and the slot 13 on the protrusion 12 of the base 1.

[0026] Specifically, the outline of the boss 223 is an integrated design that has been optimized through collaboration, and includes, in sequence, an arc-shaped guide portion 2231, a smooth mating portion 2232, a platform surface 2233, and a vertical edge portion 2234. The arc-shaped guide portion 2231 forms a guide surface facing the direction of rotation, the platform surface 2233 protrudes from the surface of the rotating component, the vertical edge portion 2234 is located on the side of the platform surface 2233 near the edge of the rotating component, and the vertical edge portion 2234 forms a vertical stop surface 226 facing away from the direction of rotation. The smooth mating portion 2232 is integrally formed between the remaining platform surface 2233 and the support, and the smooth mating portion 2232 and the arc-shaped guide portion 2231 together approximate the shape of a "7".

[0027] During assembly, the spindle assembly 21 is first rotated to engage with the base, so that the groove of the cam of the flange 212 rotates to engage with the protrusion on the base. Then, the support 221 of the rotating assembly 2 is aligned with the gap between the protrusions 12 on the base 1, so that the rotating assembly 2 is in the first angular position. The rotating assembly 2 is then inserted into the base 1 along the axial direction, so that the support 221 of the rotating assembly 2 initially engages with the base groove 14 of the base 1. Subsequently, the rotating assembly 2 is pivoted around the axis from the first angular position to the second angular position, so that the arc-shaped guide portion 2231 of the protrusion 223 on the corner of the support 221 of the support member 22 begins to contact and interact with the inclined sidewall of the slot 13, and smoothly enters the slot (13) with its optimized contour.

[0028] When the rotating assembly 2 pivots from the first angular position to the second angular position, the boss 223 smoothly enters the entrance of the slot 13 after its arc-shaped guide portion 2231 contacts the inclined side wall of the slot 13. When the rotating assembly 2 reaches the second angular position, its vertical edge 2234 (i.e., the vertical stop surface) engages in the slot 13 and forms a rigid straight-face fit with the blocking surface of the slot 13, mechanically preventing the rotating assembly 2 from pivoting in the opposite direction from the second angular position.

[0029] This anti-reverse mechanism integrates guiding, engaging, and stopping functions into a single, optimized profile, eliminating the need for separate locking components. The engagement of the arc-shaped guide portion 2231 with the inclined surface of the slot ensures smooth and effortless assembly; while the tactile feedback when the boss engages clearly indicates that the assembly is complete. This structure achieves extremely high anti-reverse reliability with a simple design, while also offering the advantages of fewer parts, lower cost, and convenient assembly.

[0030] It should be noted that the various embodiments of this application can be arbitrarily combined into new embodiments, provided that the solutions do not conflict and the technical solutions can coexist.

[0031] 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 mounting structure for a car rearview mirror folding device, characterized in that: include: The base (1) is used to fix it to the vehicle. It has a cavity (11) inside. The inner wall of the cavity (11) is symmetrically provided with protrusions (12). Each protrusion (12) has a slot (13) on its lower side. Rotating assembly (2) is used to connect with the base (1) and form a central axis supporting the outer vision unit housing in the connected state; The base (1) and the rotating assembly (2) are provided with a pair of mutually cooperating protrusions (12) and grooves (2121), so that the rotating assembly (2) can be inserted into the base (1) at a first angular position to achieve initial engagement, and pivot from the first angular position to a second angular position, so as to achieve axial locking of the rotating assembly (2) relative to the base (1) through the cooperation of the pair of protrusions (12) and grooves (2121); The anti-reverse mechanism includes a boss (223) integrally formed on the rotating component (2), the boss (223) cooperating with the slot (13) on the base (1), the outline of the boss (223) including an arc-shaped guide portion (2231), a smooth fitting portion (2232), a platform portion (2233) and a vertical edge portion (2234); wherein, the arc-shaped guide portion (2231) is located at the front end facing the direction of rotation, the platform portion (2233) protrudes from the surface of the rotating component (2), and the vertical edge portion (2234) is located on the side of the platform portion (2233) close to the edge of the rotating component (2), forming a vertical stop surface that directly cooperates with the blocking surface of the slot (13); The boss (223) is configured such that when the rotating assembly (2) pivots from the first angular position to the second angular position, its arc-shaped guide portion (2231) and the platform portion (2233) cooperate with the side wall of the slot (13), and then the vertical side portion (2234) is inserted into the slot (13).

2. The mounting structure for a car rearview mirror folding device according to claim 1, characterized in that: The rotating assembly (2) includes a support member (22), the lower end of which extends radially to form a support (221), and the boss (223) is integrally formed at the edge of the support (221).

3. The mounting structure for a car rearview mirror folding device according to claim 2, characterized in that: The support is a rounded rectangle, and the protrusion is set near the rounded corner of the support.

4. The mounting structure for a car rearview mirror folding device according to claim 1, characterized in that: The boss (223) is stamped and a boss groove (222) is formed below it.

5. The mounting structure for a car rearview mirror folding device according to claim 1, characterized in that: The rotation angle of the rotating component (2) from the first angular position to the second angular position is less than 90 degrees.

6. The mounting structure for a car rearview mirror folding device according to claim 1, characterized in that: The side wall of the slot (13) is provided with an inclined surface, which cooperates with the arc-shaped guide portion (2231) of the protrusion (223).

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