Lockable cushionable automobile folding mirror
By using a locking and buffered design for car folding rearview mirrors, the stability problems of traditional rearview mirrors during collisions and driving are solved through the cooperation of drive components, buffer components, and locking components. This achieves a stable field of vision, reduces the risk of damage, and lowers maintenance costs.
Patent Information
- Application Number
- CN202522712906.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-22
AI Technical Summary
Traditional car rearview mirrors are easily damaged in collisions or scratches, and the field of vision is easily unstable due to bumps or vibrations during driving, resulting in high maintenance costs.
The car folding rearview mirror features a locking and buffering design, including a drive unit, a buffer unit, and a locking unit. The rearview mirror is opened or folded by a motor and unlocks to buffer kinetic energy in the event of a collision. It uses a buffer spring and a toothed block structure to absorb energy and prevent damage to the mirror.
It effectively prevents the rearview mirror from shifting or shaking during driving, ensuring a stable field of vision, and reduces the risk of damage by absorbing energy during a collision, thus avoiding expensive repairs.
Smart Images
Figure CN224928935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a car rearview mirror, specifically a locking and buffering car folding rearview mirror. Background Technology
[0002] As a key component for vehicle safety, the rearview mirror's functional stability and structural reliability directly affect the driver's visibility and driving safety. Traditional rearview mirrors mostly use fixed or manually folding structures, which are prone to scratches when the vehicle is parked or passing through narrow sections of road, causing damage or even detachment of the mirror, resulting in high repair costs. Therefore, electrically folding rearview mirrors have gradually appeared on the market, using a motor to automatically unfold and retract the mirror, improving ease of use.
[0003] A typical folding rearview mirror consists of a base and a mirror body, which are connected by a drive mechanism. In use, the drive mechanism rotates the mirror body to fold and unfold the mirror. When fully unfolded or folded, the drive mechanism keeps the mirror body in the same position to prevent slight wobbling or angle shifting of the mirror during vehicle operation due to road bumps, aerodynamic disturbances, or vehicle vibrations, which could lead to unstable rear visibility.
[0004] When a rearview mirror is hit or scratched, the kinetic energy generated by the collision will directly act on the rearview mirror body due to the locking of the rearview mirror body position by the drive component. The strong kinetic energy impact will cause damage to the mirror body, base or drive component. Utility Model Content
[0005] The purpose of this invention is to provide a lockable and buffer-operated car folding rearview mirror to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A locking, buffer-operated folding rearview mirror for automobiles includes a base on which a rearview mirror body is rotatably mounted, the base being used for fixed connection with the automobile body. It also includes a drive component and a buffer component; the drive component can drive the rearview mirror body to rotate through the buffer component to perform an unfolding or folding action; and the buffer component can be used to buffer kinetic energy. It also includes a locking element, which is used to limit the rearview mirror body after the rearview mirror body is fully deployed.
[0007] As described above, the locking and buffer-operated folding rearview mirror for automobiles includes a drive unit comprising a motor mounted on the base, a worm gear mounted on the output end of the motor, and a fixing post mounted on the base; a worm wheel meshing with the worm gear is rotatably mounted on the fixing post.
[0008] The locking and buffered folding rearview mirror for automobiles as described above: the buffer includes a fixed ring mounted on the worm gear, and a plurality of first toothed blocks equidistantly arranged along its circumference are mounted on the fixed ring; a connecting sleeve that sleeves with the fixed post is mounted on the rearview mirror body; a sliding ring is slidably fitted on the connecting sleeve; a plurality of second toothed blocks equidistantly arranged along its circumference are mounted on the sliding ring; the first toothed blocks and the second toothed blocks mesh with each other; a buffer spring is wrapped around the connecting sleeve; the two ends of the buffer spring abut against the sliding ring and the connecting sleeve, respectively.
[0009] As described above, the locking and buffered folding rearview mirror for automobiles has the same size as the first and second toothed blocks, and both are provided with symmetrical inclined surfaces.
[0010] As described above, the locking mechanism for a car folding rearview mirror includes a locking wedge that slides into the fixing post; a relief spring is provided inside the fixing post; both ends of the relief spring abut against the fixing post and the locking wedge, respectively; and a locking groove that mates with the locking wedge is provided on the connecting sleeve.
[0011] As described above, the locking buffered folding rearview mirror for automobiles has a locking wedge with a first inclined surface and a second inclined surface; and the slope of the first inclined surface is greater than the slope of the second inclined surface.
[0012] As described above, the locking and buffering car folding rearview mirror: both the first tooth block and the second tooth block are made of alloy steel.
[0013] Compared with the prior art, the beneficial effects of this utility model are: The locking mechanism provides a reliable mechanical limit after the rearview mirror is fully extended, effectively preventing the mirror angle from shifting or shaking during driving due to external forces such as road bumps, vehicle vibrations, or strong winds. This ensures that the driver always has a clear and stable rear view, fundamentally improving driving safety. Through the effective cooperation of the drive component, buffer component, and locking component, in the event of a collision, the rearview mirror is allowed to rotate by unlocking to "dissipate force," and the buffer component absorbs energy. This significantly reduces the risk of damage to the rearview mirror due to rigid impacts, avoiding expensive repair costs. Attached Figure Description
[0014] Figure 1 A schematic diagram of a lockable, cushioned folding rearview mirror for automobiles.
[0015] Figure 2 A structural schematic diagram of a cross-sectional view of a lockable, cushioned folding rearview mirror for automobiles.
[0016] Figure 3 for Figure 2 A schematic diagram of the structure at point A in the middle.
[0017] Figure 4 A schematic diagram of the structure of the fixing post in a lockable, cushioned folding rearview mirror for automobiles.
[0018] Figure 5 for Figure 4 A schematic diagram of the structure at point B.
[0019] Figure 6 A schematic diagram of the locking groove in a car's folding rearview mirror that provides a locking mechanism.
[0020] In the picture: 1. Base; 2. Rearview mirror body; 201. Connecting sleeve; 202. Locking groove; 3. Fixed column; 4. Electric motor; 5. Worm gear; 6. Worm gear; 7. Retaining ring; 701. First toothed block; 8. Sliding ring; 801. Second toothed block; 9. Buffer spring; 10. Yield spring; 11. Locking wedge; 1101. First inclined plane; 1102. Second inclined plane. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Please see Figures 1-6 As an embodiment of the present utility model, the locking bufferable folding rearview mirror includes a base 1, on which a rearview mirror body 2 is rotatably mounted, and the base 1 is used to fix and connect with the car body. It also includes a drive component and a buffer component; the drive component can drive the rearview mirror body 2 to rotate through the buffer component to perform an unfolding or folding action; and the buffer component can be used to buffer kinetic energy. It also includes a locking member, which is used to limit the rearview mirror body 2 after it is fully extended.
[0023] In this embodiment, the base 1 is fixedly connected to the vehicle body. In the initial state, the rearview mirror body 2 is parallel to the vehicle's direction of travel (folded state).
[0024] In use, the control system manipulates the drive components to rotate the rearview mirror body 2 to be perpendicular to the direction of travel (in the unfolded state) via the buffer components. After reaching the position, the rearview mirror body 2 is locked by the locking components to increase its rotation resistance and prevent the position of the rearview mirror body 2 from changing due to factors such as vibration and wind during use, thereby affecting driving safety.
[0025] In the unfolded state, when the rearview mirror body 2 is impacted, the kinetic energy generated by the impact can release the locking state of the locking device, allowing the rearview mirror body 2 to rotate with the impact. Furthermore, the impact kinetic energy is weakened or offset by the buffer device, preventing damage to the rearview mirror.
[0026] The locking mechanism provides a reliable mechanical limit after the rearview mirror is fully extended, effectively preventing the mirror angle from shifting or shaking during driving due to external forces such as road bumps, vehicle vibrations, or strong winds. This ensures that the driver always has a clear and stable rear view, fundamentally improving driving safety. Through the effective cooperation of the drive component, buffer component, and locking component, in the event of a collision, the rearview mirror is allowed to rotate by unlocking to "dissipate force," and the buffer component absorbs energy. This significantly reduces the risk of damage to the rearview mirror due to rigid impacts, avoiding expensive repair costs.
[0027] As a further embodiment of this utility model, the driving component includes a motor 4 mounted on the base 1, a worm gear 5 mounted on the output end of the motor 4, and a fixing column 3 mounted on the base 1; a worm wheel 6 that meshes with the worm gear 5 is rotatably mounted on the fixing column 3.
[0028] In this embodiment, when the motor 4 is working, it can drive the worm 5 to rotate, thereby driving the worm wheel 6 to rotate through the meshing of the worm 5 and the worm wheel 6, which in turn drives the rearview mirror body 2 to rotate through the buffer.
[0029] The meshing of worm 5 and worm wheel 6 ensures the torque during operation, and its operation is more stable and quiet, meeting the noise control requirements of automotive parts; when motor 4 stops operating, the self-locking effect effectively reduces visual shaking.
[0030] As a further embodiment of this utility model, the buffer component includes a fixed ring 7 mounted on the worm gear 6, and a plurality of first tooth blocks 701 equidistantly arranged along its circumference are mounted on the fixed ring 7; a connecting sleeve 201 that is sleeved with the fixed post 3 is mounted on the rearview mirror body 2; a sliding ring 8 is slidably fitted on the connecting sleeve 201; a plurality of second tooth blocks 801 equidistantly arranged along its circumference are mounted on the sliding ring 8; the first tooth blocks 701 and the second tooth blocks 801 mesh with each other; a buffer spring 9 is wrapped around the connecting sleeve 201; the two ends of the buffer spring 9 abut against the sliding ring 8 and the connecting sleeve 201 respectively.
[0031] As a further embodiment of this utility model, the first tooth block 701 and the second tooth block 801 have the same size and are both provided with symmetrical inclined surfaces.
[0032] In this embodiment, when the worm gear 6 rotates, it will drive the fixed ring 7 to rotate synchronously, thereby driving the first tooth block 701 to rotate; through the meshing action of the first tooth block 701 and the second tooth block 801, the sliding ring 8 can be driven to rotate, thereby driving the rearview mirror body 2 to rotate through the connecting sleeve 201 (with low rotational resistance).
[0033] When the rearview mirror body 2 rotates to a specific position, the locking component will limit the rearview mirror body 2 (increasing the rotational resistance); then the driving component will stop moving.
[0034] When the rearview mirror body 2 is impacted, the kinetic energy generated by the impact can release the locking state of the locking device, allowing the rearview mirror body 2 to rotate with the impact. At this time, the fixing ring 7 is locked. When the second tooth block 801 rotates, it will press the inclined surface of the first tooth block 701 through the inclined surface. Through the mutual pressing of the two inclined surfaces, the first tooth block 701 and the second tooth block 801 will slide against each other, and the sliding ring 8 will move away from the fixing ring 7. The first tooth block 701 and the second tooth block 801 gradually disengage, compressing the buffer spring 9 (the spring force of the buffer spring 9 buffers the impact). And when the first second tooth block 801 passes the first tooth block 701, the buffer spring 9 will drive the sliding ring 8 to reset, so that the first tooth block 701 and the second tooth block 801 overlap and mesh.
[0035] Through the effective cooperation of the drive components, buffer components, and locking components, the rearview mirror can be unlocked to allow it to rotate in the event of a collision to "dissipate force," and then the energy can be absorbed by the buffer components. This can significantly reduce the risk of the rearview mirror being damaged by rigid impacts and avoid expensive repair costs.
[0036] As a further embodiment of this utility model, the locking member includes a locking wedge 11 that slides and engages with the fixing post 3; a relief spring 10 is provided inside the fixing post 3; the two ends of the relief spring 10 respectively abut against the fixing post 3 and the locking wedge 11; and a locking groove 202 that cooperates with the locking wedge 11 is provided on the connecting sleeve 201.
[0037] As a further embodiment of this utility model, the locking wedge block 11 is provided with a first inclined surface 1101 and a second inclined surface 1102; and the slope of the first inclined surface 1101 is greater than the slope of the second inclined surface 1102.
[0038] In this embodiment, in the initial state, the inner wall of the connecting sleeve 201 presses against the locking wedge 11, causing the relief spring 10 to be compressed; at this time, the elastic force of the relief spring 10 causes the locking wedge 11 to abut against the inner wall of the connecting sleeve 201 (the pressing force is small, so the rotational resistance is small), so when the driving member is activated, the buffer member can drive the connecting sleeve 201 to rotate.
[0039] When the rearview mirror body 2 reaches a specific position, the locking wedge 11 aligns with the locking groove 202. Under the action of the relief spring 10, the locking wedge 11 will enter the locking groove 202, so that the first inclined surface 1101 and the second inclined surface 1102 both abut against the groove wall of the locking groove 202.
[0040] The contact between the first inclined surface 1101 and the locking groove 202 increases the rotational resistance of the connecting sleeve 201. That is, after reaching the locking position, the buffer cannot transmit the kinetic energy of the driving component, making the position of the connecting sleeve 201 relatively stable. When it is impacted in the direction of travel, the impact causes the first inclined surface 1101 to be squeezed against the locking groove 202, thereby causing the locking wedge 11 to disengage from the locking groove 202, allowing the rearview mirror body 2 to rotate in the direction of travel, thus preventing the rearview mirror from breaking (the buffer buffers the kinetic energy when it rotates).
[0041] When subjected to an impact from the direction of travel or when the rearview mirror body 2 is to be folded, the resistance to the rotation of the connecting sleeve 201 is relatively small due to the small slope of the second inclined surface 1102. Therefore, when subjected to an impact, the pressing fit between the second inclined surface 1102 and the locking groove 202 can disengage the locking groove 202 from the locking wedge 11, allowing the rearview mirror body 2 to rotate in the direction of travel, thus preventing damage to the rearview mirror. When the rearview mirror is to be folded, the drive component can drive the connecting sleeve 201 to rotate through the buffer component.
[0042] Through the effective cooperation of the drive components, buffer components, and locking components, the rearview mirror can be unlocked to allow it to rotate in the event of a collision to "dissipate force," and then the energy can be absorbed by the buffer components. This can significantly reduce the risk of the rearview mirror being damaged by rigid impacts and avoid expensive repair costs.
[0043] As a further embodiment of this utility model, both the first tooth block 701 and the second tooth block 801 are made of alloy steel.
[0044] In this embodiment, both the first tooth block 701 and the second tooth block 801, made of alloy steel, have strong wear resistance, which can improve the service life of the rearview mirror.
[0045] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.
Claims
1. A locking and buffered folding rearview mirror for automobiles, comprising a base (1), on which a rearview mirror body (2) is rotatably mounted, the base (1) being used for fixed connection with the automobile body; Its features are, It also includes a drive component and a buffer component; the drive component can drive the rearview mirror body (2) to rotate through the buffer component to perform an unfolding or folding action; and the buffer component can be used to buffer kinetic energy; It also includes a locking element, which is used to limit the rearview mirror body (2) after the rearview mirror body (2) is fully deployed.
2. A locking, buffer-operated car folding rearview mirror according to claim 1, characterized in that, The driving component includes a motor (4) mounted on the base (1), a worm gear (5) mounted on the output end of the motor (4), and a fixed column (3) mounted on the base (1); a worm wheel (6) that meshes with the worm gear (5) is rotatably mounted on the fixed column (3).
3. A locking, buffer-operated car folding rearview mirror according to claim 2, characterized in that, The buffer component includes a fixed ring (7) mounted on the worm gear (6), on which a plurality of first tooth blocks (701) are mounted equidistantly along the circumference; a connecting sleeve (201) fitted onto the rearview mirror body (2) and sleeved onto the fixed post (3); a sliding ring (8) is slidably fitted onto the connecting sleeve (201); a plurality of second tooth blocks (801) are mounted on the sliding ring (8); the first tooth blocks (701) and the second tooth blocks (801) mesh with each other; a buffer spring (9) is wrapped around the connecting sleeve (201); the two ends of the buffer spring (9) abut against the sliding ring (8) and the connecting sleeve (201) respectively.
4. A locking, buffer-operated car folding rearview mirror according to claim 3, characterized in that, The first tooth block (701) and the second tooth block (801) have the same size and both have symmetrical inclined surfaces.
5. A locking, buffer-operated car folding rearview mirror according to claim 3, characterized in that, The locking component includes a locking wedge (11) that slides into the fixed post (3); a relief spring (10) is provided inside the fixed post (3); the two ends of the relief spring (10) respectively abut against the fixed post (3) and the locking wedge (11); a locking groove (202) that cooperates with the locking wedge (11) is provided on the connecting sleeve (201).
6. A locking, buffer-operated car folding rearview mirror according to claim 5, characterized in that, The locking wedge (11) is provided with a first inclined surface (1101) and a second inclined surface (1102); and the slope of the first inclined surface (1101) is greater than the slope of the second inclined surface (1102).
7. A locking, buffer-operated car folding rearview mirror according to claim 3, characterized in that, Both the first tooth block (701) and the second tooth block (801) are made of alloy steel.