Exterior rear-view mirror lens damping structure and vehicle

Abstract

The utility model discloses an outside rear-view mirror lens damping structure and a vehicle, the outside rear-view mirror lens damping structure comprises a lens assembly, a steering gear assembly and a steering gear substrate, the lens assembly comprises a lens carriage, and the lens carriage is provided with a clamping structure and a damping elastic sheet; an elastic support is arranged on the lens dragging plate, a rigid support is arranged at the end of the steering gear base plate, and the outer rearview mirror lens damping structure has the advantages of being good in damping effect, simple in forming process and low in production cost.

Description

Technical Field

[0001] The utility model belongs to the field of automobile rearview mirrors, and specifically relates to a shock-absorbing structure of an exterior rearview mirror lens and a vehicle. Background Art

[0002] In order to allow car drivers to better observe the traffic conditions on the side and rear while the car is driving and ensure driving safety, exterior rearview mirrors are installed at the left and right front doors of the car.

[0003] When a car travels on bumpy roads or makes adjustments, the vibration of the entire vehicle is transmitted to the exterior mirrors, causing them to vibrate. This blurs the driver's view of traffic conditions to the side and rear of the vehicle, compromising driving safety. Currently, a common approach is to use a mirror deflector with a damping function to reduce the vibration frequency, but this approach is ineffective and still cannot effectively address the vibration problem caused by high-frequency bumpy roads.

[0004] Patent publication number CN105398391A, published on March 16, 2016, discloses a shock-absorbing automotive rearview mirror comprising a rearview mirror body, a wiper strip, an elastic material pad, a retracting device, a fixing plate, a mounting and connecting support, a fixing bolt, a lens, a rearview mirror housing, a slide rail, and a retracting strip. The rearview mirror body is provided with a fixing plate, which is fixedly connected to the fixing plate. A slide rail is provided on one side of the fixing plate, which is fixedly connected to the fixing plate. The slide rail is provided with a mounting and connecting support, which is connected to the slide rail. The mounting and connecting support is provided with a fixing bolt, which is fixedly connected to the mounting and connecting support. The rearview mirror body is provided with a rearview mirror housing, which contains a lens, and an elastic material pad is provided between the lens and the rearview mirror housing. This shock-absorbing automotive rearview mirror does not solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a shock-absorbing structure for an exterior rearview mirror lens with good shock-absorbing effect, simple molding process and low production cost in view of the deficiencies in the existing technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The exterior rearview mirror lens shock-absorbing structure includes a lens assembly, a steering gear assembly and a steering gear base plate. The lens assembly includes a lens carriage, which is provided with a clamping structure and a damping spring; the lens carriage is provided with an elastic bracket, and the end of the steering gear base plate is provided with a rigid bracket.

[0008] The clamping structure includes a hook, a boss is provided at the end of the diverter assembly, the hook abuts against the boss, the damping spring is located between the lens carriage and the diverter assembly, and the diverter assembly contacts the damping spring.

[0009] The elastic bracket and the rigid bracket are in an arc-shaped structure, and the outer side of the elastic bracket abuts against the inner side of the rigid bracket.

[0010] A convex rib is provided on the outer side of the elastic bracket, and two convex ribs are provided.

[0011] The cross section of the hook is L-shaped, and the end of the boss is an inclined surface structure.

[0012] The hooks and damping springs are evenly distributed along the circumference.

[0013] The lens carriage is provided with a bracket, which is in an annular structure. The hook and the damping spring are respectively fixedly connected to the outer side and the inner side of the bracket.

[0014] The elastic bracket is located on an end of the lens carriage away from the bracket.

[0015] The clamping structure, the damping spring sheet and the elastic bracket are all integrated with the lens carriage; the rigid bracket is integrated with the steering gear base plate.

[0016] A vehicle includes an exterior rearview mirror, wherein the exterior rearview mirror includes the above-mentioned exterior rearview mirror lens shock-absorbing structure.

[0017] The utility model has the following technical effects:

[0018] 1. By setting up a clamping structure and utilizing the plastic deformation properties of plastic parts, after the lens assembly and the steering gear are assembled, a circle of damping springs is formed on the back of the lens carriage, which is in a state of compressive plastic deformation. The elastic force generated pushes the lens assembly and the steering gear in opposite directions. In conjunction with the hook clamping structure, the lens assembly and the steering gear are firmly assembled and the vibration of the lens assembly is attenuated.

[0019] 2. The elastic bracket and the rigid bracket form a friction pair, which can effectively attenuate the relative motion jitter generated by the steering gear by utilizing the principle of friction resistance;

[0020] 3. The various structures on the lens carriage are integrally formed with the lens carriage, and the steering gear base plate and the rigid bracket are integrally formed. The molding process is simple, which saves assembly time and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] This manual includes the following drawings, which show the following contents:

[0022] Figure 1 It is an external view of the exterior rearview mirror of the present invention;

[0023] Figure 2 yes Figure 1 AA section view;

[0024] Figure 3 yes Figure 2 A partial enlarged view of

[0025] Figure 4 This is a structural diagram of the lens carriage of the present invention;

[0026] Figure 5 yes Figure 1 BB cross-sectional view;

[0027] Figure 6 yes Figure 5 A partial enlarged view of

[0028] Figure 7 yes Figure 1 CC section view;

[0029] Figure 8 yes Figure 7 A partial enlarged view of .

[0030] The following are marked in the figure: 1. lens assembly; 11. lens; 12. double-sided film; 13. lens drag plate; 14. elastic bracket; 15. hook; 16. damping spring; 17. bracket; 18. rib; 2. steering gear assembly; 3. steering gear base plate; 31. rigid bracket; 32. boss. DETAILED DESCRIPTION

[0031] The following is a further detailed description of the specific implementation methods of the present invention by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate its implementation.

[0032] like Figure 1 and Figure 2 As shown, the exterior rearview mirror lens shock-absorbing structure includes a lens assembly 1, a steering gear assembly 2 and a steering gear base plate 3. The lens assembly 1 includes a lens carriage 13, on which a clamping structure and a damping spring 16 are provided; an elastic bracket 14 is provided on the lens carriage 13, and a rigid bracket 31 is provided at the end of the steering gear base plate 3.

[0033] Building on the existing technology of a damped steering gear, a damping spring 16 is added between the lens assembly 1 and the steering gear, effectively damping relative vibration between the lens assembly 1 and the steering gear. The steering gear assembly 2 is located between the lens assembly 1 and the steering gear base plate 3. The lens assembly 1 is clipped to the edge of the adjustable steering gear via hooks 15 on the back of the lens carriage 13, preventing the lens assembly 1 from separating from the steering gear. The lens carriage 13 is a plastic component with hooks 15 evenly spaced on its back for connection to the steering gear assembly 2, as well as damping springs 16 for compression and shock absorption. Utilizing the plastic deformation properties of the lens carriage 13, the damping springs 16 on the back of the lens carriage 13 enter a compressive plastic deformation state after the lens 11 is assembled with the steering gear. The resulting elastic force pushes the lens assembly 1 and the steering gear in opposite directions, and in conjunction with the aforementioned clipping structure of the hooks 15, secures the assembly and reduces shock. Furthermore, the friction pair formed by the elastic bracket 14 on the lens carriage 13 and the rigid bracket 31 on the base plate effectively attenuates the relative motion vibration generated by the steering gear by utilizing the principle of frictional resistance. Combined with the above-mentioned shock-absorbing effect on the lens assembly 1, the vibration transmitted from the entire vehicle to the exterior rearview mirror can be greatly reduced, thereby improving the safety of the driver when observing the vehicle and traffic conditions.

[0034] like Figure 2 、 Figure 6 and Figure 8 As shown, the snap-fit ​​structure includes a hook 15. A boss 32 is provided at the end of the steering assembly 2. The hook 15 abuts against the boss 32. A damping spring 16 is located between the lens carriage 13 and the steering assembly 2, and the steering assembly 2 contacts the damping spring 16. The hook 15 and boss 32 cooperate to connect the lens carriage 13 and the steering assembly 2. The damping spring 16 between the lens carriage 13 and the steering assembly 2 cushions and reduces the contact force between them, ensuring component assembly stability while also providing a shock-absorbing effect.

[0035] like Figure 2 and Figure 4 As shown, the elastic bracket 14 and the rigid bracket 31 are arc-shaped, with the outer side of the elastic bracket 14 abutting the inner side of the rigid bracket 31. The lens carriage 13 also includes an elastic bracket 14 that interferes with and rubs against the exterior rearview mirror base. The exterior rearview mirror base includes a rigid bracket 31 that forms a friction pair with the elastic bracket 14 of the lens carriage 13. This prevents relative movement of the elastic bracket 14 and the rigid bracket 31 when they are in close contact, improving the shock absorption effect. The arc-shaped elastic bracket 14 and the rigid bracket 31 mate with a spherical surface concentric with the steering gear's rotating sphere.

[0036] like Figure 4As shown, the elastic bracket 14 is provided with two ribs 18 on its outer side. The mating surfaces of the elastic bracket 14 and the rigid bracket 31 are provided with spherical ribs 18, which form a compressive interference fit with the rigid bracket 31. When the steering gear rotates, the friction generated by the relative motion between the ribs 18 of the elastic bracket 14 and the rigid bracket 31 acts to attenuate the force, thereby reducing vibration of the exterior rearview mirror lens assembly 1.

[0037] like Figure 6 As shown, the hook 15 has an L-shaped cross-section, and the end of the boss 32 is a beveled structure. The design of the beveled boss 32 allows the hook 15 to be smoothly snapped into place along its slope, facilitating assembly of the lens carriage 13 and the steering assembly 2. The L-shaped hook 15 also acts as a positional limiter for the boss 32, improving assembly stability.

[0038] like Figure 4 As shown, the hooks 15 and the damping springs 16 are evenly distributed along the circumference. The hooks 15 are arranged in pairs and there are four groups, and there are 12 damping springs 16, which improves the uniformity of the assembly firmness and the shock absorption effect.

[0039] like Figure 4 As shown, the lens carriage 13 is provided with a bracket 17 having an annular structure. The hook 15 and the damping spring 16 are fixedly connected to the outer and inner sides of the bracket 17, respectively. With this structure, the bracket 17 provides a connection location for the hook 15 and the damping spring 16, fully utilizing the space in the lens carriage 13, increasing the number of hooks 15 and the damping spring 16 provided, improving the secureness, and avoiding spatial interference between the hook 15 and the damping spring 16.

[0040] like Figure 2 As shown, the elastic bracket 14 is located on the end of the lens carriage 13 away from the bracket 17. The elastic bracket 14 and the rigid bracket 31 are arranged as far as possible at the far end of the lens assembly 1 to increase the force arm of the friction force to enhance the vibration attenuation effect.

[0041] like Figure 2 As shown, the snap-fit ​​structure, damping spring 16, and elastic bracket 14 are all integrally formed with the lens carriage 13; the rigid bracket 31 is also integrally formed with the diverter base plate 3. The lens assembly 1 also includes a lens 11 and a double-sided film 12, with the lens 11 being adhered and secured to the lens carriage 13 via the double-sided film 12. The snap-fit ​​structure, damping spring 16, and elastic bracket 14 of the lens carriage 13 are all integrally injection-molded with the lens carriage 13, simplifying the molding process and saving the time and component cost of separately assembling the metal damping spring 16. The diverter base plate 3 and rigid bracket 31 are also integrally injection-molded, utilizing high-strength nylon material, a strong structure, and thick walls to achieve rigidity. This simplifies the molding process and reduces production costs.

[0042] The vehicle includes an exterior rearview mirror, and the exterior rearview mirror includes the above-mentioned exterior rearview mirror lens shock-absorbing structure.

[0043] The exterior rearview mirror lens damping structure utilizes a snap-fit ​​structure and the plastic deformation properties of plastic parts. After the lens assembly 1 is assembled with the steering gear, a circle of damping springs 16 formed on the back of the lens carriage 13 is in a state of compressive plastic deformation and stress. The resulting elastic force pushes the lens assembly 1 and the steering gear in opposite directions, and cooperates with the snap-fit ​​structure of the hook 15 to achieve the effect of firmly assembling the lens assembly 1 and the steering gear and attenuating the vibration of the lens assembly 1. The elastic bracket 14 and the rigid bracket 31 form a friction pair, which can effectively attenuate the relative motion jitter generated by the steering gear by utilizing the principle of friction resistance. The various structures on the lens carriage 13 are integrally formed with the lens carriage 13, and the steering gear base plate 3 is integrally formed with the rigid bracket 31. This simplifies the molding process, saves assembly time, and reduces production costs.

[0044] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. A shock-absorbing structure for an exterior rearview mirror, characterized in that: The invention comprises a lens assembly (1), a steering gear assembly (2) and a steering gear base plate (3); the lens assembly (1) comprises a lens carriage (13); the lens carriage (13) is provided with a clamping structure and a damping spring sheet (16); the lens carriage (13) is provided with an elastic bracket (14); the end of the steering gear base plate (3) is provided with a rigid bracket (31); the clamping structure comprises a hook (15); the end of the steering gear assembly (2) is provided with a boss (32); the hook (15) abuts against the boss (32); the damping spring sheet (16) is located between the lens carriage (13) and the steering gear assembly (2); and the steering gear assembly (2) contacts the damping spring sheet (16).

2. The exterior rearview mirror lens shock absorption structure according to claim 1, characterized in that: The elastic bracket (14) and the rigid bracket (31) are in an arc-shaped structure, and the outer side of the elastic bracket (14) abuts against the inner side of the rigid bracket (31).

3. The exterior rearview mirror lens shock absorption structure according to claim 2, characterized in that: The outer side of the elastic bracket (14) is provided with a convex rib (18), and two convex ribs (18) are provided.

4. The exterior rearview mirror lens shock absorption structure according to claim 1, characterized in that: The cross section of the hook (15) is an L-shaped structure, and the end of the boss (32) is an inclined surface structure.

5. The exterior rearview mirror lens shock absorption structure according to claim 1, characterized in that: The hooks (15) and the damping springs (16) are evenly distributed along the circumference.

6. The exterior rearview mirror lens damping structure according to claim 5, characterized in that: A bracket (17) is provided on the lens carriage (13), and the bracket (17) is an annular structure. The hook (15) and the damping spring (16) are respectively fixedly connected to the outer side and the inner side of the bracket (17).

7. The exterior rearview mirror lens damping structure according to any one of claims 1 to 6, characterized in that: The elastic bracket (14) is located on an end of the lens carriage (13) away from the bracket (17).

8. The exterior rearview mirror lens shock absorption structure according to claim 7, characterized in that: The clamping structure, the damping spring (16) and the elastic bracket (14) are all integrated with the lens carriage (13); and the rigid bracket (31) is integrated with the steering gear base plate (3).

9. A vehicle including an exterior rearview mirror, characterized in that: The exterior rearview mirror includes the exterior rearview mirror lens shock-absorbing structure according to any one of claims 1 to 8.

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