A suction cup type rearview mirror auxiliary mirror

Abstract

The utility model provides a kind of suction cup type rearview mirror auxiliary mirror, including auxiliary mirror and the suction cup assembly suitable for universal support auxiliary mirror, suction cup assembly includes elastic adsorption piece, suction cup base and transmission part, elastic adsorption piece includes the adsorption surface suitable for contact mounting surface;Suction cup base can compress the edge area of elastic adsorption piece;Transmission part is suitable for connecting the central region of elastic adsorption piece;One of suction cup base and transmission part is equipped with spiral lifting part, and the other of suction cup base and transmission part is equipped with cooperation part;Suction cup base and transmission part can rotate relative around central axis, spiral lifting part and cooperation part can synchronous sliding fit, to drive transmission part axial away from or close to suction cup base, and the central region of elastic adsorption piece is deformed with elasticity to form or release negative pressure adsorption cavity.The utility model is directly rotated base by setting suction cup base as operating component, user installs, can, avoid the contact of hand and auxiliary mirror mirror surface.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and in particular relates to a suction cup type rearview mirror auxiliary mirror. Background Technology

[0002] With the continuous upgrading of automotive safety driving requirements, rearview mirror auxiliary mirrors (also known as blind spot mirrors), as core components for expanding the driver's field of vision and reducing blind spots, have become the focus of industry attention due to their fixation stability, ease of adjustment, and long-term reliability. Currently, the main fixing methods for auxiliary mirrors are adhesive and adsorption. Adhesive methods are gradually being replaced by adsorption structures because they easily leave adhesive residue on the surface of the original rearview mirror, are difficult to clean, and cannot be reused. When fixing blind spot mirrors using adsorption, it is necessary to press the mirror onto the rearview mirror. During the pressing process, it is easy to leave fingerprints on the blind spot mirror or accidentally change the angle of the auxiliary mirror. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a suction cup type rearview mirror auxiliary mirror to meet the needs of users.

[0004] To achieve the above objectives, this utility model provides a suction cup type rearview mirror auxiliary mirror, including an auxiliary mirror and a suction cup assembly suitable for omnidirectional support of the auxiliary mirror, the suction cup assembly including...

[0005] The elastic adsorption sheet includes an adsorption surface suitable for contacting the mounting surface, which is the original rearview mirror of the car.

[0006] The suction cup base can press the edge area of ​​the elastic adsorption sheet to ensure the edge of the elastic adsorption sheet is sealed and to prevent negative pressure leakage.

[0007] A transmission component adapted to connect to the central region of the elastic adsorption sheet;

[0008] One of the suction cup base and the transmission component is provided with a spiral lifting part, and the other of the suction cup base and the transmission component is provided with a mating part;

[0009] The suction cup base and the transmission component can rotate relative to each other around the central axis. The spiral lifting part and the mating part can slide and engage synchronously to drive the transmission component axially away from or towards the suction cup base, that is, to convert the circumferential rotational motion into the axial movement of the transmission component. The central area of ​​the elastic adsorption sheet undergoes elastic deformation to form or release a negative pressure adsorption cavity.

[0010] Preferably, the spiral lifting part includes a spiral lifting surface, which has a low end and a high end. The mating part includes a mating column, wherein the spiral lifting surface provides a continuous movement trajectory for the mating column. The low end corresponds to the natural state of the elastic adsorption sheet, and the high end corresponds to the position of maximum deformation at the center of the adsorption sheet. The mating column can form a negative pressure adsorption cavity by moving from the low end to the high end. By using the spiral helix angle, the circumferential force is stably converted into axial tension, achieving a smooth transition of negative pressure from zero to maximum, avoiding damage to the mounting surface caused by excessive impact force during adsorption, and precisely controlling the deformation at the center of the elastic adsorption sheet.

[0011] Preferably, the suction cup assembly includes an adsorption state with a negative pressure adsorption chamber and a release state where the negative pressure adsorption chamber is released. The spiral lifting portion includes a locking groove adjacent to the high end. The mating post moving from the high end to the locking groove allows the suction cup to maintain the adsorption state. The locking groove provides circumferential restraint for the mating post, and its groove depth is adapted to the diameter of the mating post to prevent the mating post from retracting along the spiral surface when the vehicle vibrates.

[0012] Furthermore, the transition from the high end to the locking groove is a smooth arc surface, ensuring that the mating post can be naturally inserted, achieving an integrated operation from adsorption to locking.

[0013] Preferably, the mating portion includes a seat adapted to support the mating post, the mating post being arranged radially along one of the central axes, and a guide groove provided on one radial side of the helical lifting portion. The seat can reciprocate within the guide groove, and at least a portion of the mating post is adapted to extend out of the seat to contact the helical lifting portion. The guide groove restricts the circumferential range of motion of the seat, ensuring that the mating post moves only along the trajectory of the helical lifting surface, while providing radial support to the seat.

[0014] Preferably, the guide groove has an installation space at one circumferential end, which is adjacent to the lower end of the spiral lifting surface; when the mating post is aligned with the installation space, the seat body is allowed to axially enter and exit the guide groove; when the mating post is located in the installation space or at the lower end of the spiral lifting surface, the suction cup assembly is in a released state. In the released state, the elastic suction sheet has no axial tension, naturally conforms to the installation surface, and the negative pressure chamber is completely released.

[0015] Preferably, the seat includes an outer arc surface with the central axis as the center of rotation, and the outer arc surface slides in contact with the groove wall of the guide groove.

[0016] Preferably, the guide groove is provided with an initial stop end face and a final stop end face at both circumferential ends, both of which are adapted to abut against the seat and / or the mating column to limit excessive rotation, and the initial stop end face is provided near the lower end of the spiral lifting surface.

[0017] Preferably, an initial baffle and a final baffle are respectively provided at both ends of the guide groove in the circumferential direction. The initial baffle is adapted to restrict the axial movement of the mating part by abutting against the mating post, and the final baffle is adapted to restrict the axial movement of the mating part by abutting against the seat.

[0018] Preferably, the mating part is connected to the elastic adsorption sheet via a transmission disk, and the central axis is adapted to pass through the center of the elastic adsorption sheet and the center of the transmission disk. Several mating parts are arranged symmetrically about the central axis to ensure that the transmission component is subjected to balanced force, so that the elastic adsorption sheet deforms uniformly and avoids the elastic adsorption sheet from deflection and deformation caused by unilateral force.

[0019] Preferably, the outer periphery of the transmission disc forms a connecting ring suitable for connecting the elastic adsorption sheet, the connecting ring enclosing and defining an inner disc suitable for connecting the seat, the inner disc exposing the elastic adsorption sheet.

[0020] Preferably, the auxiliary mirror is connected to a universal head, and the suction cup base includes a bottom structure and a circumferential surrounding plate. The bottom structure includes a universal seat located at its center and, radially outward from the universal seat, a guide groove, a deformation space, and a pressing part adapted to press the outer edge of the elastic adsorption sheet. The universal seat is adapted to support the universal head. The deformation space protrudes upward relative to the pressing part to allow the elastic adsorption sheet to deform and form a negative pressure adsorption cavity. The spiral lifting part is optionally located radially inside or radially outside the guide groove. The spiral lifting part's internal and external design adapts to suction cup assemblies of different sizes. In small suction cup assemblies, the spiral lifting part is mostly placed inside the guide groove, while in large suction cup assemblies, the spiral lifting part is mostly placed outside the guide groove.

[0021] Preferably, the auxiliary mirror is spherical, adapting to the human eye's field of vision and improving the clarity of observation in blind spots. The auxiliary mirror has a natural state, in which its axis is parallel to or coincides with the central axis. The axial distance between the auxiliary mirror and the suction cup base is suitable for limiting the maximum angle at which the auxiliary mirror can be rotated. The auxiliary mirror is adapted to abut against the bottom structure or the circumferential panel to indicate that it has been rotated to its maximum angle, providing clear physical feedback for mirror angle adjustment, preventing excessive rotation, and improving the intuitiveness and convenience of use.

[0022] Preferably, the suction cup assembly further includes a suction cup cover, which is adapted to cover the suction cup base and expose the universal joint. Specifically, the suction cup cover is adapted to cover the internal structures such as the spiral lifting part and the mating part, to prevent dust and moisture from entering and causing transmission jamming, and also to improve the overall visual appearance.

[0023] Specifically, the diameter of the auxiliary mirror is smaller than the diameter of the circumferential enclosure, and the outer edge of the auxiliary mirror abuts against the bottom structure or the suction cup cover to indicate that it is flipped to a maximum angle; the diameter of the circumferential enclosure is smaller than the diameter of the auxiliary mirror, and the inner surface of the auxiliary mirror abuts against the circumferential enclosure to indicate that it is flipped to a maximum angle.

[0024] The beneficial effects of this utility model are:

[0025] By setting the suction cup base as the operating component, users can simply rotate the base during installation, avoiding contact between the hand and the auxiliary mirror surface, and completely solving the problem of fingerprint contamination and accidental touches causing changes in the mirror angle.

[0026] Furthermore, by employing a direct sliding fit between the spiral lifting section and the mating section, the force flow path is short, energy loss is minimal, and a larger and more stable adsorption force can be generated. When rotating relative to each other, the spiral lifting section directly forces the transmission component to produce precise axial displacement, thereby efficiently pulling the central deformation of the elastic adsorption sheet.

[0027] A locking groove is provided adjacent to the high end of the spiral lifting surface. When the mating column slides into this groove, the mechanism achieves self-locking, which can effectively resist vibrations during vehicle operation, prevent the suction cup from accidentally loosening, and greatly improve the reliability and safety of the product. Attached Figure Description

[0028] Figure 1 is a schematic diagram of the structure of a suction cup type rearview mirror auxiliary mirror in Example 1.

[0029] Figure 2 is an exploded schematic diagram of a suction cup type rearview mirror auxiliary mirror in Example 1.

[0030] Figure 3 is a schematic diagram of the release state of the suction cup assembly in Example 1.

[0031] Figure 4 is a schematic diagram of the adsorption state of the suction cup assembly in Example 1.

[0032] Figure 5 is a schematic diagram of the transmission component in Example 1.

[0033] Figure 6 is a schematic diagram of the structure of a suction cup type rearview mirror auxiliary mirror in Embodiment 1, where the auxiliary mirror is flipped to its maximum angle.

[0034] Figure 7 is a cross-sectional schematic diagram of the auxiliary mirror of a suction cup rearview mirror in Embodiment 1, with the auxiliary mirror flipped to its maximum angle.

[0035] Figure 8 is a schematic diagram of the structure of a suction cup type rearview mirror auxiliary mirror in Example 2.

[0036] Figure 9 is a cross-sectional schematic diagram of a suction cup type rearview mirror auxiliary mirror in Example 2.

[0037] Figure 10 is a schematic diagram of the suction cup base in Example 2.

[0038] Figure 11 is a schematic diagram of the transmission component in Example 2.

[0039] In the figure: auxiliary mirror 100, universal head 110, suction cup assembly 200, elastic adsorption sheet 210, suction cup base 220, pressing part 221, guide groove 222, installation space 223, initial stop end face 2241, initial baffle 2242, final stop end face 2251, final baffle 2252, bottom structure 226, circumferential surrounding plate 227, universal seat 228, deformation space 229, transmission component 230, transmission disc 231, connecting ring 2311, inner disc 2312, spiral lifting part 240, spiral lifting surface 241, low end 2411, high end 2412, locking groove 242, mating part 250, seat body 251, outer arc surface 2511, mating column 252, suction cup cover 260. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0042] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Example 1

[0044] like Figures 1 to 4 As shown, a suction cup rearview mirror auxiliary mirror includes an auxiliary mirror 100 and a suction cup assembly 200. The auxiliary mirror 100 is spherical to fit the human eye's field of vision and improve the clarity of blind spot observation. The auxiliary mirror 100 is connected to the suction cup base 220 via a universal joint 110. The suction cup assembly 200 is used to universally support the auxiliary mirror 100 and can be fixed to the original rearview mirror (i.e., mounting surface) of the vehicle by negative pressure adsorption.

[0045] In this embodiment, the suction cup assembly 200 includes an elastic suction plate 210, a suction cup base 220, and a transmission component 230. The elastic suction plate 210 is made of flexible rubber material, and its lower surface is an suction surface 211 suitable for contacting the mounting surface. The transmission component 230 is connected to the central region of the elastic suction plate 210 via a transmission disc 231. The suction cup base 220 includes a bottom structure 226 and a circumferential surrounding plate 227. From the center outwards, the bottom structure 226 includes, in sequence: a universal seat 228 for supporting the universal head 110, a guide groove 222, a deformation space 229, and a pressing part 221. The suction cup base 220 presses the edge region of the elastic suction plate 210 with the pressing part 221 to ensure edge sealing and prevent negative pressure leakage. The deformation space 229 protrudes upwards relative to the pressing part 221, providing space for the deformation of the elastic suction plate 210. The suction cup base 220 and the transmission component 230 are rotatable relative to each other about a central axis X. A spiral lifting portion 240 is fixedly provided on the radial outer side of the guide groove 222, while the transmission component 230 is provided with two mating portions 250 that are rotationally symmetrical about the central axis X. The mating portions 250 are in sliding engagement with the spiral lifting portion 240. This symmetrical design ensures that the transmission component 230 is subjected to balanced forces, resulting in uniform deformation of the elastic adsorption sheet 210 and effectively avoiding the deflection and deformation of the elastic adsorption sheet caused by unilateral forces.

[0046] In this embodiment, the spiral lifting part 240 includes a spiral lifting surface 241, which includes a lower end 2411 and a higher end 2412. The mating part 250 includes a seat 251 and a mating post 252. The seat 251 includes an outer arc surface 2511 with the central axis X as the center of rotation. The seat 251 can reciprocate within the guide groove 222, and its outer arc surface 2511 slides in contact with the groove wall of the guide groove 222 to achieve circumferential guidance. The mating post 252 is arranged radially along the central axis X and partially extends out of the seat 251 to contact the spiral lifting surface 241. When the suction cup base 220 is rotated, the mating post 252 slides along the spiral lifting surface 241. The spiral lifting surface 241 provides a continuous motion trajectory for the mating post 252, and its unique spiral helix angle design can stably and smoothly convert the circumferential rotational force into axial tension.

[0047] In this embodiment, when the mating post 252 moves from the lower end 2411 to the higher end 2412, the transmission component 230 is driven axially away from the suction cup base 220, thereby pulling the middle part of the elastic adsorption sheet 210 to deform. Specifically, the elastic adsorption sheet 210 gradually switches from its natural state to its central region to form maximum deformation, creating a negative pressure adsorption cavity and achieving firm adsorption. This process achieves a smooth transition of negative pressure from zero to maximum, avoiding instantaneous impact on the mounting surface.

[0048] In this embodiment, the spiral lifting part 240 also includes a locking groove 242 adjacent to the high end 2412. The mating post 252 can slide smoothly from the high end 2412 into the locking groove 242. The locking groove 242 provides circumferential restraint for the mating post 252, and its groove depth is precisely matched with the diameter of the mating post 252, which can effectively prevent backing caused by vehicle vibration and keep the suction cup assembly 200 in a reliable adsorption state. The transition from the high end 2412 to the locking groove 242 is a smooth arc surface, ensuring that the mating post can be naturally locked in, realizing an integrated operation from adsorption to locking. By rotating the suction cup base 220 in the opposite direction, the mating post 252 slides out from the locking groove 242, returns to the low end 2411 via the high end 2412, and the negative pressure is released, making it easy to remove.

[0049] In this embodiment, the central axis X passes through the center of the elastic adsorption sheet 210 and the center of the transmission disk 231. The outer periphery of the transmission disk 231 forms a connecting ring 2311, which is fixedly connected to the central region of the elastic adsorption sheet 210. The connecting ring 2311 encloses and defines an inner disk 2312 suitable for protruding from the elastic adsorption sheet 210, and the mating part 250 is fixed to the inner disk 2312.

[0050] In this embodiment, a mounting space 223 is provided at one circumferential end of the guide groove 222, which is adjacent to the lower end 2411 of the spiral lifting surface 241. When the mating post 252 is aligned with the mounting space 223, the seat 251 is allowed to move axially in and out of the guide groove, facilitating assembly. When the mating post 252 is located at the lower end 2411 of the spiral lifting surface 241, the suction cup assembly 200 is in a released state.

[0051] In this embodiment, the guide groove 222 is further provided with an initial stop end face 2241 and a final stop end face 2251 at both circumferential ends. The initial stop end face 2241 is located adjacent to the lower end 2411 of the spiral lifting surface 241, and is adapted to abut against the seat 251 and the mating post 252 to limit its excessive rotation in the release direction. The final stop end face 2251 is adapted to abut against the mating post 252 to limit its excessive rotation in the locking direction. In addition, the guide groove 222 is provided with an initial baffle 2242 and a final baffle 2252 at both circumferential ends. The initial baffle 2242 restricts the axial movement of the mating post 252 by abutting against it, and the final baffle 2252 restricts the axial movement of the seat 251 by abutting against it.

[0052] In this embodiment, the diameter of the auxiliary mirror 100 is smaller than the diameter of the circumferential surrounding plate 227. When the angle of the auxiliary mirror 100 is adjusted, its outer edge can abut against the pressing part 221 of the bottom structure 226 to indicate that it has been flipped to the maximum angle α, α=25°, providing clear physical feedback for the mirror angle adjustment and preventing excessive flipping.

[0053] Example 2

[0054] See Figure 5 and Figure 6 A suction cup type rearview mirror auxiliary mirror, compared with embodiment 1, has the same basic structure and working principle. The difference is that the spiral lifting part 240 is set on the radial inner side of the guide groove 222. This embedded layout greatly optimizes the utilization of radial space, so that the diameter of the suction cup base 220 can be significantly reduced, thereby realizing the miniaturization and compactness of the overall structure of the suction cup assembly 200, which is more suitable for application scenarios with stricter requirements for installation space.

[0055] In this embodiment, the suction cup assembly 200 additionally includes a suction cup cover 260. The suction cup cover 260 covers the suction cup base 220, effectively protecting the internal transmission structures such as the spiral lifting part 240 and the mating part 250, preventing dust and moisture from entering and causing jamming, while also improving the overall visual appeal and aesthetics of the product. The suction cup cover 260 has a central opening, exposing the universal joint 228 for connection to the universal head 110.

[0056] Furthermore, in this embodiment, the diameter of the circumferential enclosure 227 is designed to be smaller than that of the auxiliary mirror 100. When the auxiliary mirror 100 is flipped toward the suction cup base 220, the inner surface of its spherical cap will abut against the upper edge of the circumferential enclosure 227, thus serving as a physical cue and limit for flipping to the maximum angle, providing another effective angle limiting solution.

[0057] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.

Claims

1. A suction cup type auxiliary mirror for a rearview mirror, characterized by, Includes an auxiliary mirror and a suction cup assembly suitable for omnidirectional support of the auxiliary mirror, the suction cup assembly including... An elastic adsorption sheet, which includes an adsorption surface suitable for contacting the mounting surface; A suction cup base that can press against the edge area of ​​the elastic adsorption sheet; A transmission component adapted to connect to the central region of the elastic adsorption sheet; One of the suction cup base and the transmission component is provided with a spiral lifting part, and the other of the suction cup base and the transmission component is provided with a mating part; The suction cup base and the transmission component can rotate relative to each other around the central axis. The spiral lifting part and the mating part can slide synchronously to drive the transmission component axially away from or close to the suction cup base. The central area of ​​the elastic adsorption sheet undergoes elastic deformation to form or release a negative pressure adsorption cavity.

2. The suction cup type rearview mirror auxiliary mirror according to claim 1, characterized in that, The spiral lifting part includes a spiral lifting surface, which includes a low end and a high end. The mating part includes a mating column, wherein the mating column can form a negative pressure adsorption cavity when it moves from the low end to the high end.

3. The suction cup type rearview mirror auxiliary mirror according to claim 2, characterized in that, The suction cup assembly includes an adsorption state with a negative pressure adsorption chamber and a release state of releasing the negative pressure adsorption chamber. The spiral lifting part includes a locking groove adjacent to the high end. The mating post can maintain the adsorption state by moving from the high end to the locking groove.

4. The suction cup type rearview mirror auxiliary mirror according to claim 3, characterized in that, The mating part includes a seat adapted to support the mating column, the mating column being arranged radially along one of the central axes, a guide groove being provided on one radial side of the spiral lifting part, the seat being able to slide back and forth in the guide groove, and at least a portion of the mating column being adapted to extend out of the seat to contact the spiral lifting part.

5. A suction cup type rearview mirror auxiliary mirror according to claim 4, characterized in that, The guide groove has an installation space at one circumferential end, which is located adjacent to the lower end of the spiral lifting surface. When the mating column is aligned with the mounting space, the seat body is allowed to move axially into and out of the guide groove. When the mating post is located at the lower end of the mounting space or the spiral lifting surface, the suction cup assembly is in the released state.

6. A suction cup type rearview mirror auxiliary mirror according to claim 5, characterized in that, An initial baffle and a final baffle are respectively provided at both ends of the guide groove in the circumferential direction. The initial baffle is adapted to restrict the axial movement of the mating part by abutting against the mating post, and the final baffle is adapted to restrict the axial movement of the mating part by abutting against the seat.

7. A suction cup type rearview mirror auxiliary mirror according to claim 1, characterized in that, The mating parts are connected to the elastic adsorption sheet via a transmission disk. The central axis is adapted to pass through the center of the elastic adsorption sheet and the center of the transmission disk. Several mating parts are arranged symmetrically about the central axis.

8. A suction cup type rearview mirror auxiliary mirror according to claim 4, characterized in that, The auxiliary mirror is connected to a universal head. The suction cup base includes a bottom structure and a circumferential surrounding plate arranged around the bottom structure. The bottom structure includes a universal seat arranged in the center thereon and a guide groove, a deformation space, and a pressing part adapted to press the outer edge of the elastic adsorption sheet arranged in sequence from the universal seat outward in a radial direction. The universal seat is adapted to support the universal head. The deformation space protrudes upward relative to the pressing part so that the elastic adsorption sheet can deform to form a negative pressure adsorption cavity. The spiral lifting part is optionally arranged on the radial inner side or the radial outer side of the guide groove.

9. A suction cup type rearview mirror auxiliary mirror according to claim 8, characterized in that, The auxiliary mirror is spherical and has a natural state. In the natural state, the axis of the auxiliary mirror is parallel to or coincides with the central axis. The axial distance between the auxiliary mirror and the suction cup base is suitable for limiting the maximum angle at which the auxiliary mirror can be flipped. The auxiliary mirror is suitable for abutting against the bottom structure or the circumferential plate to indicate that it is flipped to a maximum angle.

10. A suction cup type rearview mirror auxiliary mirror according to claim 8, characterized in that, The suction cup assembly also includes a suction cup cover adapted to cover the suction cup base and expose the universal joint.

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