Aluminum support holding arm for automobile rearview mirror
By designing aluminum support arms for rotating and assembling components, the problem of inconvenient angle adjustment of aluminum support arms was solved, achieving convenient angle adjustment and quick assembly/disassembly, and enhancing the stability and dustproof effect of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO MEISHENG METAL PRODUCTS CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-17
AI Technical Summary
The lack of flexible angle adjustment mechanisms in aluminum grip arms on the market makes them inconvenient to operate and difficult to adapt to different usage needs.
An aluminum support arm comprising a rotating component and an assembly component was designed. The rotating component is driven by a stepper motor to rotate the movable seat to adjust the angle. The assembly component enables quick assembly and disassembly through internal thread fasteners and fixing posts, and is combined with a through-hole heat dissipation plate for dust prevention.
It enables flexible adjustment and quick assembly/disassembly of the aluminum support arm angle, improving operational convenience and effectively preventing dust and impurities from entering, thus enhancing the stability and ease of maintenance of the device.
Smart Images

Figure CN224130972U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, specifically to an aluminum support arm for automotive rearview mirrors. Background Technology
[0002] A car rearview mirror is a convex or flat mirror device installed on a vehicle to observe road conditions behind, to the sides, and below. Its core function is to expand the driver's field of vision and assist in judging distances to other vehicles, thereby reducing safety risks in scenarios such as lane changes and reversing. Currently, to prevent car rearview mirrors from loosening during use, aluminum support arms are usually used to fix and support them.
[0003] Aluminum grip arms on the market usually do not have a flexible angle adjustment mechanism, making it inconvenient to adjust the overall angle of the aluminum grip arm, thus making operation inconvenient. To address this, we propose an aluminum grip arm for automotive rearview mirrors. Utility Model Content
[0004] The purpose of this invention is to provide an aluminum support arm for a car rearview mirror to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an aluminum support arm for a car rearview mirror, comprising a protective cover and a rotating assembly. The protective cover is an integrated structure, and a fixed seat is installed on the upper side of the protective cover. The upper surface of the protective cover is tightly connected to the lower surface of the fixed seat. The rotating assembly is disposed on the surface of the fixed seat and includes a accommodating movable groove, an annular limiting groove, a stepper motor, a movable seat, a limiting protrusion, a through-hole heat dissipation upper plate, and a through-hole heat dissipation lower plate. The accommodating movable groove is opened at the upper inner side of the fixed seat, and an annular limiting groove is opened at the lower inner side of the fixed seat. A stepper motor is installed on the lower side of the fixed seat, and the output end of the stepper motor is connected to the movable seat through a coupling. The outer surface of the movable seat is rotatably connected to the inner side of the accommodating movable groove.
[0006] Furthermore, the lower end of the outer surface of the movable seat is provided with a limiting protrusion, and the limiting protrusion is rotatably connected to the inner side of the annular limiting groove.
[0007] Furthermore, a through-hole heat dissipation upper plate is installed on the lower inner side of the protective cover, and a through-hole heat dissipation lower plate is provided below the through-hole heat dissipation upper plate.
[0008] Furthermore, the heat dissipation through holes on the surfaces of the upper and lower heat dissipation plates are staggered, and the heat dissipation through holes on the surfaces of the upper and lower heat dissipation plates have built-in dustproof meshes.
[0009] Furthermore, the surface of the movable seat is provided with assembly components for assembly, and the assembly components include an annular reinforcing groove, an irregular mounting groove, an irregular mounting piece, an aluminum main arm, and an annular reinforcing ring, wherein the annular reinforcing groove is formed on the outer side of the upper surface of the movable seat.
[0010] Furthermore, the upper surface of the movable seat is provided with an irregularly shaped mounting groove, and an irregularly shaped mounting component is engaged with the inner side of the irregularly shaped mounting groove. An aluminum main arm is mounted on the upper surface of the irregularly shaped mounting component, and the aluminum main arm and the irregularly shaped mounting component are an integral structure that is tightly connected. An annular reinforcing ring is engaged with the inner side of the annular reinforcing groove.
[0011] Furthermore, the assembly also includes an internal threaded fastener and a fixing post, and the internal threaded fastener is installed on the upper side of the annular reinforcing ring. The inner side of the internal threaded fastener is threadedly connected to the lower end of the aluminum main arm, and the upper end of the aluminum main arm is engaged with the fixing post.
[0012] Furthermore, a fixing plate is installed on the right side of the fixing column, the protective cover, and the fixing seat, and mounting plates are provided on both sides of the fixing plate, with threaded mounting holes opened on the surface of the mounting plate.
[0013] This utility model provides an aluminum support arm for a car rearview mirror, which has the following beneficial effects:
[0014] 1. This utility model incorporates a rotating assembly, which includes a accommodating movable groove, an annular limiting groove, a stepper motor, a movable seat, a limiting protrusion, a through-hole heat dissipation upper plate, and a through-hole heat dissipation lower plate. In use, the stepper motor is activated, causing the movable seat to rotate along the inner side of the accommodating movable groove. This, in turn, causes the aluminum main arm to rotate, facilitating the adjustment of the aluminum main arm's angle and consequently the rearview mirror angle. The limiting protrusion, connected to the inner side of the annular limiting groove, prevents the movable seat from disengaging. The through-holes on the surfaces of the through-hole heat dissipation upper and lower plates continuously dissipate heat from the stepper motor. The through-holes on the surfaces of the upper and lower plates are staggered, and each through-hole contains a built-in dustproof mesh, effectively preventing dust, sand, and other debris from entering the protective cover. This allows the device to automatically adjust the overall angle of the aluminum support arm, adapting to different usage needs and making operation more convenient.
[0015] 2. This utility model, through the setting of an assembly component, includes an annular reinforcing groove, an irregularly shaped mounting groove, an irregularly shaped mounting component, an aluminum main arm, and an annular reinforcing ring. The assembly component also includes an internally threaded fixing component and a fixing post. In use, the internally threaded fixing component is first threadedly connected to the lower end of the aluminum main arm, and then the internally threaded fixing component is moved upwards towards the threaded structure on the lower end surface of the aluminum main arm. Through the engaging connection between the upper end of the aluminum main arm and the inner side of the fixing post, the aluminum main arm is fixed to the fixing post. At the same time, the lower end of the aluminum main arm... The movable irregular mounting part engages with the inner side of the irregular mounting groove. Then, the internal threaded fixing part can be rotated to move downward along the threaded structure surface of the lower end of the aluminum main arm. The internal threaded fixing part drives the annular reinforcing ring to move downward until the annular reinforcing ring is completely engaged with the inner side of the annular reinforcing groove. This further facilitates the installation of the aluminum main arm and the movable seat surface. As a result, the device can quickly assemble and disassemble the aluminum support arm body. The installation is stable and not easy to loosen, making it convenient for the maintenance or replacement of the aluminum support arm. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of an aluminum support arm for a car rearview mirror according to the present invention.
[0017] Figure 2 This is a three-dimensional structural diagram of the rotating component of an aluminum support arm for a car rearview mirror according to the present invention.
[0018] Figure 3 This is a three-dimensional structural diagram of an assembly component for an aluminum support arm for a car rearview mirror according to the present invention.
[0019] Figure 4 This is a three-dimensional structural diagram of the fixing plate for an aluminum support arm for a car rearview mirror according to the present invention.
[0020] In the diagram: 1. Protective cover; 2. Fixed base; 3. Rotating assembly; 301. Accommodating movable slot; 302. Annular limiting slot; 303. Stepper motor; 304. Movable base; 305. Limiting protrusion; 306. Through-hole heat dissipation upper plate; 307. Through-hole heat dissipation lower plate; 4. Assembly assembly; 401. Annular reinforcing slot; 402. Irregular mounting slot; 403. Irregular mounting component; 404. Aluminum main arm; 405. Annular reinforcing ring; 406. Internal threaded fastener; 407. Fixed column; 5. Fixed plate; 6. Mounting plate; 7. Threaded mounting hole. Detailed Implementation
[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0022] like Figures 1 to 4As shown, an aluminum support arm for a car rearview mirror includes a protective cover 1 and a rotating assembly 3. The protective cover 1 is an integral structure, and a fixed base 2 is installed on the upper side of the protective cover 1. The upper surface of the protective cover 1 is tightly connected to the lower surface of the fixed base 2. The rotating assembly 3 is disposed on the surface of the fixed base 2 and includes a accommodating movable groove 301, an annular limiting groove 302, a stepper motor 303, a movable seat 304, a limiting protrusion 305, a through-hole heat dissipation upper plate 306, and a through-hole heat dissipation lower plate 307. The accommodating movable groove 301 is opened at the upper inner side of the fixed base 2, and the annular limiting groove 302 is opened at the lower inner side of the fixed base 2. A stepper motor 303 is installed on the lower side of the fixed base 2. The stepper motor 303 is connected to a movable seat 304 via a coupling. The outer surface of the movable seat 304 is rotatably connected to the inner side of the accommodating movable groove 301. The lower end of the outer surface of the movable seat 304 is provided with a limiting protrusion 305, which is rotatably connected to the inner side of the annular limiting groove 302. A through-hole heat dissipation upper plate 306 is installed on the lower inner side of the protective cover 1, and a through-hole heat dissipation lower plate 307 is provided below the through-hole heat dissipation upper plate 306. The heat dissipation through holes on the surfaces of the through-hole heat dissipation upper plate 306 and the through-hole heat dissipation lower plate 307 are staggered, and the heat dissipation through holes on the surfaces of the through-hole heat dissipation upper plate 306 and the through-hole heat dissipation lower plate 307 have built-in dustproof mesh.
[0023] The specific operation is as follows: When in use, start the stepper motor 303, which drives the movable seat 304 to rotate along the inner side of the accommodating movable groove 301. In turn, the movable seat 304 drives the aluminum main arm 404 to rotate, so as to adjust the angle of the aluminum main arm 404 and thus facilitate the adjustment of the rearview mirror angle. The rotation of the movable seat 304 is prevented from being dislodged by the rotational connection between the limiting protrusion 305 and the inner side of the annular limiting groove 302. The stepper motor 303 is continuously cooled by the through holes on the surface of the through-hole heat dissipation upper plate 306 and the through-hole heat dissipation lower plate 307. The through holes on the surface of the through-hole heat dissipation upper plate 306 and the through-hole heat dissipation lower plate 307 are staggered. At the same time, the through holes are equipped with dustproof mesh, which can effectively prevent dust, sand and other impurities from entering the protective cover 1.
[0024] Please refer to Figures 3 to 4The movable seat 304 has an assembly component 4 for assembly on its surface. The assembly component 4 includes an annular reinforcing groove 401, a shaped mounting groove 402, a shaped mounting component 403, an aluminum main arm 404, and an annular reinforcing ring 405. The annular reinforcing groove 401 is formed on the outer side of the upper surface of the movable seat 304. The shaped mounting groove 402 is formed on the upper surface of the movable seat 304, and the shaped mounting component 403 is engaged with the inner side of the shaped mounting groove 402. The aluminum main arm 404 is mounted on the upper surface of the shaped mounting component 403, and the aluminum main arm 404 and the shaped mounting component 403 are tightly connected. The integrated structure has an annular reinforcing groove 401 with an annular reinforcing ring 405 engaged inside. The assembly component 4 also includes an internal threaded fastener 406 and a fixing post 407. The internal threaded fastener 406 is installed on the upper side of the annular reinforcing ring 405. The inner side of the internal threaded fastener 406 is threadedly connected to the lower end of the aluminum main arm 404. The upper end of the aluminum main arm 404 is engaged with the fixing post 407. Fixing plates 5 are installed on the right side of the fixing post 407, the protective cover 1, and the fixing seat 2. Mounting plates 6 are provided on both sides of the fixing plate 5. Threaded mounting holes 7 are opened on the surface of the mounting plate 6.
[0025] The specific operation is as follows: During use, the mounting plate 6 is installed on both sides of the vehicle body by connecting the mounting bolts to the threaded mounting holes 7, thereby achieving the overall installation and fixation of the device. First, the internal threaded fastener 406 is threaded onto the lower end of the aluminum main arm 404, and the internal threaded fastener 406 is moved above the threaded structure on the lower end surface of the aluminum main arm 404. Through the engagement connection between the upper end of the aluminum main arm 404 and the inner side of the fixing post 407, the aluminum main arm 404 is fixed to the fixing post 407. The lower end of the aluminum main arm 404 drives the irregular mounting part 403 to engage with the inner side of the irregular mounting groove 402. Then, the internal threaded fixing part 406 can be rotated, so that the internal threaded fixing part 406 moves downward along the threaded structure surface of the lower end of the aluminum main arm 404. The internal threaded fixing part 406 drives the annular reinforcing ring 405 to move downward until the annular reinforcing ring 405 is completely engaged with the inner side of the annular reinforcing groove 401, further installing the aluminum main arm 404 and the surface of the movable seat 304.
[0026] In summary, as Figures 1 to 4As shown, this car rearview mirror uses an aluminum support arm. In use, firstly, the mounting plate 6 is installed on both sides of the vehicle body via the threaded connection of the mounting bolts and threaded mounting holes 7, thus fixing the entire device. Next, the internal threaded fastener 406 is threaded onto the lower end of the aluminum main arm 404, and the internal threaded fastener 406 is moved upwards towards the threaded structure on the lower surface of the aluminum main arm 404. The upper end of the aluminum main arm 404 is engaged with the inner side of the fixing post 407, fixing the aluminum main arm 404 to the fixing post 407. Simultaneously, the lower end of the aluminum main arm 404 drives the irregularly shaped mounting part 403 to engage with the inner side of the irregularly shaped mounting groove 402. Then, the internal threaded fastener 406 can be rotated, causing it to move downwards along the threaded structure surface of the lower end of the aluminum main arm 404. The internal threaded fastener 406 drives the annular reinforcing ring 405 downwards until the annular reinforcing ring 405... The device is fully engaged with the inner side of the annular reinforcing groove 401, further securing the aluminum main arm 404 to the surface of the movable seat 304. During use, the stepper motor 303 is started, causing the movable seat 304 to rotate along the inner side of the accommodating movable groove 301. This, in turn, causes the aluminum main arm 404 to rotate, facilitating the adjustment of the angle of the aluminum main arm 404 and thus the adjustment of the rearview mirror angle. The rotational connection between the limiting protrusion 305 and the inner side of the annular limiting groove 302 prevents the movable seat 304 from detaching. The stepper motor 303 is continuously cooled by the through holes on the surfaces of the through-hole heat dissipation upper plate 306 and the through-hole heat dissipation lower plate 307. The through holes on the surfaces of the through-hole heat dissipation upper plate 306 and the through-hole heat dissipation lower plate 307 are staggered, and the through holes are equipped with dustproof meshes to effectively prevent dust, sand, and other debris from entering the protective cover 1.
[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. An aluminum support arm for a rearview mirror of an automobile, comprising a protective cover (1) and a rotating assembly (3), characterized in that: The protective cover (1) is an integrated structure, and a fixed seat (2) is installed on the upper side of the protective cover (1). The upper surface of the protective cover (1) is tightly connected to the lower surface of the fixed seat (2). The rotating component (3) is set on the surface of the fixed seat (2). The rotating component (3) includes a accommodating movable groove (301), an annular limiting groove (302), a stepper motor (303), a movable seat (304), a limiting protrusion (305), a through-hole heat dissipation upper plate (306), and a through-hole heat dissipation lower plate (307). The accommodating movable groove (301) is opened at the upper inner side of the fixed seat (2), and an annular limiting groove (302) is opened at the lower inner side of the fixed seat (2). A stepper motor (303) is installed on the lower side of the fixed seat (2), and the output end of the stepper motor (303) is connected to the movable seat (304) through a coupling. The outer surface of the movable seat (304) is rotatably connected to the inner side of the accommodating movable groove (301).
2. The aluminum support arm for a vehicle rearview mirror according to claim 1, wherein The lower end of the outer surface of the movable seat (304) is provided with a limiting protrusion (305), and the limiting protrusion (305) is rotatably connected to the inner side of the annular limiting groove (302).
3. The aluminum support arm for a vehicle mirror according to claim 1, wherein The protective cover (1) has a through-hole heat dissipation upper plate (306) installed at the lower inner side, and a through-hole heat dissipation lower plate (307) is provided below the through-hole heat dissipation upper plate (306).
4. The aluminum mirror arm according to claim 1, wherein The heat dissipation holes on the surfaces of the through-hole heat dissipation upper plate (306) and the through-hole heat dissipation lower plate (307) are arranged alternately, and the heat dissipation holes on the surfaces of the through-hole heat dissipation upper plate (306) and the through-hole heat dissipation lower plate (307) have built-in dustproof mesh.
5. The aluminum mirror arm according to claim 1, wherein The surface of the movable seat (304) is provided with an assembly component (4) for assembly, and the assembly component (4) includes an annular reinforcing groove (401), an irregular mounting groove (402), an irregular mounting part (403), an aluminum main arm (404) and an annular reinforcing ring (405). The annular reinforcing groove (401) is opened on the outer side of the upper surface of the movable seat (304).
6. The aluminum mirror arm according to claim 5, wherein The upper surface of the movable seat (304) is provided with an irregularly shaped mounting groove (402), and an irregularly shaped mounting component (403) is engaged with the inner side of the irregularly shaped mounting groove (402). An aluminum main arm (404) is mounted on the upper surface of the irregularly shaped mounting component (403), and the aluminum main arm (404) and the irregularly shaped mounting component (403) are an integral structure that is tightly connected. An annular reinforcing ring (405) is engaged with the inner side of the annular reinforcing groove (401).
7. The aluminum mirror arm according to claim 6, wherein The assembly component (4) also includes an internal threaded fastener (406) and a fixing post (407), and the internal threaded fastener (406) is installed on the upper side of the annular reinforcing ring (405). The inner side of the internal threaded fastener (406) is threadedly connected to the lower end of the aluminum main arm (404), and the upper end of the aluminum main arm (404) is engaged with the fixing post (407).
8. The aluminum mirror arm according to claim 7, wherein The fixing column (407), the protective cover (1) and the fixing base (2) are all equipped with fixing plates (5) on the right side, and mounting plates (6) are provided on both sides of the fixing plate (5). The mounting plate (6) has threaded mounting holes (7) on its surface.