Rearview mirror anti-noise structure, rearview mirror assembly and vehicle

Abstract

The utility model provides a rearview mirror anti-noise structure, a rearview mirror assembly and a vehicle, which belong to the technical field of vehicle rearview mirrors and comprise a fixed shell, a mirror shell, a transmission component and a sealing element. The transmission assembly comprises a first bevel gear and a second bevel gear which are meshed with each other, and the first bevel gear is driven to rotate by the rotating motion of the rotating shaft in the mirror shell folding process, so that the second bevel gear is driven to rotate; on the basis, an eccentric sliding block on the side face of a second bevel gear is in sliding fit with a sliding groove in the end of a sliding rod to drive the sliding rod to move so as to drive the sealing piece to retract, the sealing piece is separated from the outer wall of the mirror shell to avoid the movement gap, and therefore friction abnormal sound generated between the mirror shell and the sealing piece in the movement process is avoided; therefore, the sealing piece can be driven by the sliding rod to stretch out to abut against the outer wall of the mirror shell to block the movement gap, the situation that airflow enters the movement gap to generate wind noise whistle when a vehicle runs at a high speed is avoided, and then the NVH performance of the vehicle is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle rear -view mirror technical field, concretely relates to a rear -view mirror anti -noise structure, rear -view mirror assembly and vehicle. BACKGROUND

[0002] With the continuous development of automobile technology, the user's requirement to ride comfort is higher and higher, and NVH performance (noise, vibration and harshness of automobile) is an important index to determine ride comfort and quality feeling, wherein, the wind noise whistle problem has been the key problem of wind noise control in NVH performance. In the process of high-speed driving of automobile, the high-speed airflow blows the rear -view mirror area and will produce whistle problem in the gap area of rear -view mirror.

[0003] At present, the scheme of solving wind noise whistle problem is basically to increase the anti-whistle rubber pad in the gap between the rear -view mirror shell. The disadvantage of this mode is that in the folding process of rear -view mirror, the anti-whistle rubber pad and the rear -view mirror shell wall surface will produce abnormal sound by mutual friction, which affects the ride comfort. UTILITY MODEL CONTENT

[0004] The utility model embodiment provides a rear -view mirror anti -noise structure, aims at solving the friction abnormal sound problem of rear -view mirror anti-whistle rubber pad, and improves the vehicle NVH performance.

[0005] In order to realize the above object, the utility model adopts the technical scheme of: first, a rear -view mirror anti -noise structure is provided, including fixed shell, mirror shell and sealing element;The fixed shell is connected to the vehicle body, the mirror shell is rotatably connected with the fixed shell through the shaft and has a movement gap between the two;The sealing element is connected in the fixed shell or the mirror shell and is drivingly connected with the shaft;Wherein, when the mirror shell is folded, the sealing element is retracted under the driving of the shaft to avoid the movement gap, when the mirror shell is unfolded, the sealing element is extended under the driving of the shaft to block the windward surface of the movement gap.

[0006] In combination with the first aspect, in a possible implementation mode, the fixed shell is provided with a transmission assembly, and the fixed shell is provided with an avoiding groove suitable for the sealing element to pass through, and the sealing element and the shaft are connected through the transmission assembly;One end of the shaft is rotatably connected with the fixed shell, and the other end is fixedly connected with the mirror shell. The transmission assembly is arranged in the fixed fixed shell, which can avoid the movement of the transmission assembly following the overturning of the mirror shell, thereby improving the stability of the transmission structure and avoiding the risk of abnormal movement.

[0007] In some embodiments, the transmission assembly comprises a first bevel gear, a second bevel gear and a slide rod; the first bevel gear is sleeved on the rotating shaft; the second bevel gear is rotationally connected in the fixed shell and is engaged with the first bevel gear; the slide rod is slidingly connected in the fixed shell and is parallel to the rotating shaft, one end of the slide rod is connected with the second bevel gear, and the other end is connected with the sealing element; wherein the slide rod is used to drive the sealing element to extend and retract under the rotation of the second bevel gear. The engagement transmission of the two bevel gears can change the transmission direction, so that the end surface of the second bevel gear is parallel to the slide rod, thereby the rotation of the second bevel gear can be conveniently converted into the linear motion of the slide rod, and the structure is simple and compact.

[0008] For example, one end of the slide rod is provided with a sliding groove, the sliding groove is arranged at an angle with the slide rod; the side wall of the second bevel gear is provided with a protruding eccentric sliding block; the eccentric sliding block is slidingly embedded in the sliding groove. When the second bevel gear rotates, the eccentric sliding block has horizontal displacement and vertical displacement, and the sliding groove and the eccentric sliding block are used to drive the slide rod to move up and down during the movement of the eccentric sliding block along the rotary track, thereby realizing the extension and retraction of the sealing element, and the structure is simple and compact and stable and reliable in operation.

[0009] For example, the inner wall of the fixed shell is formed with a fixed rib plate above the second bevel gear, and the slide rod passes through the fixed rib plate and is slidingly connected with the fixed rib plate. By setting the fixed rib plate as the installation basis of the slide rod, the motion stability of the slide rod can be improved.

[0010] In a possible implementation, the top end of the slide rod is provided with an upwardly extending stop edge, and the sealing element is fixedly attached to the stop edge. By setting the stop edge to be fixedly attached to the sealing element, the connection area of the sealing element can be increased, thereby improving the connection reliability of the sealing element.

[0011] In some embodiments, a limiting platform is formed between the lower end of the stop edge and the top end of the slide rod, and the lower end of the sealing element abuts against the limiting platform. The limiting platform structure formed by the stop edge and the top end of the slide rod provides abutting support for the sealing element, thereby improving the connection reliability of the sealing element.

[0012] For example, the end of the sealing element extending into the movement gap is bent to form a sealing lip. By setting the bent sealing lip, the contact sealing property of the sealing element and the outer wall of the mirror shell can be improved, thereby improving the sealing tightness of the sealing element to the movement gap and avoiding wind noise and whistle.

[0013] The rearview mirror anti-noise structure has the advantages that compared with the prior art, the rearview mirror anti-noise structure of the utility model, in the mirror shell folding process, the rotation of the rotating shaft drives the retraction of the sealing element, the sealing element is separated from the outer wall of the mirror shell or the fixed shell to avoid the movement gap, thereby avoiding the friction noise during the movement of the mirror shell, when the mirror shell is unfolded, the rotating shaft rotates reversely, and the sealing element is driven to extend and press against the outer wall of the mirror shell or the fixed shell to block the movement gap, thereby avoiding the wind noise whistle caused by the airflow entering the movement gap during the high-speed driving of the vehicle, and further improving the NVH performance of the vehicle and the driving comfort.

[0014] In a second aspect, the utility model discloses a rearview mirror assembly, comprising the rearview mirror anti-noise structure.

[0015] The rearview mirror assembly has the advantages that compared with the prior art, the rearview mirror assembly of the utility model adopts the rearview mirror anti-noise structure, the sealing element is driven to extend or retract by the rotating shaft during the folding or unfolding of the mirror shell, thereby the sealing element can block the movement gap when the mirror shell is unfolded to avoid the wind noise whistle during the driving, and the sealing element can also retract to avoid the movement gap when the mirror shell is folded to avoid the friction noise, thereby improving the NVH performance of the vehicle and the driving comfort.

[0016] In a third aspect, the utility model discloses a vehicle, comprising the rearview mirror assembly.

[0017] The vehicle has the advantages that compared with the prior art, the vehicle of the utility model adopts the rearview mirror assembly with the rearview mirror anti-noise structure, the sealing element can block the movement gap when the mirror shell is unfolded to avoid the wind noise whistle during the driving, and the sealing element can also retract to avoid the movement gap when the mirror shell is folded to avoid the friction noise, thereby improving the NVH performance of the vehicle and the driving comfort. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective structural schematic view of the rearview mirror anti-noise structure is provided for the utility model embodiment.

[0019] Figure 2 A cross-sectional structural schematic view of the rearview mirror anti-noise structure when the mirror shell is unfolded is provided for the utility model embodiment.

[0020] Figure 3 A cross-sectional structural schematic view of the rearview mirror anti-noise structure when the mirror shell is folded is provided for the utility model embodiment.

[0021] Figure 4 A connecting structural schematic view of the slide rod and the second bevel gear is provided for the utility model embodiment.

[0022] Figure 5 For Figure 2 The local enlarged structure schematic view at A in the middle.

[0023] In the figure: 10, fixed shell; 11, avoiding groove; 12, fixed rib plate; 20, mirror shell; 30, transmission assembly; 31, first bevel gear; 32, second bevel gear; 321, eccentric sliding block; 322, circular motion track; 33, sliding rod; 331, sliding groove; 332, baffle; 333, limiting table; 40, sealing element; 41, sealing lip; 50, rotating shaft; 60, motion gap. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model.

[0025] It should be noted that when an element is referred to as being "disposed on" or "connected to" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or several features. In the description of the present application, the meaning of "a plurality of", "several" is two or more, unless otherwise specifically limited.

[0026] Please refer to Figures 1 to 5 The rearview mirror noise prevention structure provided by the utility model will be described. The rearview mirror noise prevention structure comprises a fixed shell 10, a mirror shell 20 and a sealing element 40; the fixed shell 10 is connected to a vehicle body, the mirror shell 20 is rotationally connected to the fixed shell 10 through a rotating shaft 50 and has a motion gap 60 between the two; the sealing element 40 is connected in the fixed shell 10 or the mirror shell 20 and is in transmission connection with the rotating shaft 50; wherein when the mirror shell 20 is folded, the sealing element 40 is retracted under the driving of the rotating shaft 50 to avoid the motion gap 60, and when the mirror shell 20 is unfolded, the sealing element 40 is extended under the driving of the rotating shaft 50 to block the windward surface of the motion gap 60.

[0027] It should be noted that the connection between the fixed shell 10 and the mirror shell 20 is a rotating fit, and both can be the same structure in the existing rearview mirror structure, that is, the fixed shell 10 is fixedly connected to the vehicle body, and the mirror shell 20 is rotatably connected to the fixed shell 10 through the rotating shaft 50 as the mounting base of the rearview mirror lens. When the vehicle is driving normally, the mirror shell 20 is unfolded to allow the driver to observe the side rear view through the rearview mirror lens, and in the case of parking or specific needs, the mirror shell 20 is folded according to actual needs. The folding action of the mirror shell 20 can be a manual folding mode or an existing automatic folding mode, which will not be described in detail here.

[0028] In this embodiment, the rotating movement of the rotating shaft 50 during the folding or unfolding of the mirror shell 20 drives the sealing member 40 to lift. The specific transmission connection mode can be a cam structure, such as a cam with a protrusion on the end face of the rotating shaft 50, and a slider is correspondingly arranged at the protruding part of the cam. The sealing member 40 is connected with the slider. When the rotating shaft 50 rotates the cam, the slider lifts under the drive of the cam, thereby realizing the expansion and contraction of the sealing member 40. The transmission connection mode between the sealing member 40 and the rotating shaft 50 can also be a gear transmission that changes the direction of the rotating power to obtain a rotating surface parallel to the axial direction of the rotating shaft 50, and then drives the rod-shaped or block-shaped connecting member to obtain lifting movement through the eccentric connecting point on the rotating surface, and then drives the sealing member 40 to lift through the connecting member. Of course, the transmission mode is not limited to the above two modes, and other transmission structures that can convert rotating movement into linear lifting movement can also be used, which will not be listed one by one here.

[0029] The sealing member 40 can be a flexible rubber sealing ring arranged around the rotating shaft 50. Since the movement gap 60 of the rearview mirror admits air during high-speed driving, it causes whistling problems. Therefore, the sealing member 40 can be a complete ring, or it can be a semi-ring or arc structure arranged corresponding to the windward side, that is, the front side in the high-speed forward driving state of the vehicle. When the mirror shell 20 is unfolded and the sealing member 40 is in a fully extended state, the sealing member 40 interferes with the outer wall of the mirror shell 20 to avoid the windward side of the movement gap 60 from admitting air to produce noise. The rearview mirror noise prevention structure provided in this embodiment avoids the frictional noise between the mirror shell 20 and the sealing member 40 during the movement of the mirror shell 20 by using the rotating movement of the rotating shaft 50 to drive the sealing member 40 to retract, so that the sealing member 40 is separated from the outer wall of the mirror shell 20 or the fixed shell 10 to avoid the movement gap 60. When the mirror shell 20 is unfolded, the rotating shaft 50 is reversely rotated, thereby driving the sealing member 40 to extend and press against the outer wall of the mirror shell 20 or the fixed shell 10 to block the movement gap 60, thereby avoiding the air flow into the movement gap 60 during high-speed driving of the vehicle to produce wind noise and whistling, and further improving the NVH performance of the vehicle and the driving comfort.

[0030] In some embodiments, referring to Figure 2and Figure 3 The fixed shell 10 is provided with a transmission assembly 30, and the fixed shell 10 is provided with a avoiding slot 11 suitable for the sealing element 40 to pass through, and the sealing element 40 and the rotating shaft 50 are connected through the transmission assembly 30. One end of the rotating shaft 50 is rotationally connected with the fixed shell 10, and the other end is fixedly connected with the mirror shell 20.

[0031] Since the extension and retraction movement of the sealing element 40 driven by the transmission assembly 30 depends on the rotation of the rotating shaft 50, in this embodiment, the rotating shaft 50 is fixedly connected with the mirror shell 20 and rotationally connected with the fixed shell 10, so that the rotating shaft 50 rotates together with the mirror shell 20 during the unfolding and folding of the mirror shell 20, and on this basis, the rotation of the rotating shaft 50 drives the sealing element 40 to extend and retract through the transmission of the transmission assembly 30. Specifically, the rotating shaft 50 can be integrally formed with the mirror shell 20, or can be detachably connected with the mirror shell 20 through a fastener, and the rotating shaft 50 and the fixed shell 10 can be matched in the conventional form of shaft and hole.

[0032] It should be understood that the transmission assembly 30 can be arranged in the fixed shell 10, the sealing element 40 extends into the movement gap 60 through the fixed shell 10, the sealing element 40 is separated from the outer wall of the mirror shell 20 in the retracted state, and the sealing element 40 abuts against the outer wall of the mirror shell 20 in the extended state to block the movement gap 60; the transmission assembly 30 can also be arranged in the mirror shell 20, the sealing element 40 is separated from the outer wall of the fixed shell 10 in the retracted state, and abuts against the outer wall of the fixed shell 10 in the extended state to block the movement gap 60.

[0034] It should be understood that the transmission assembly 30 can be arranged in the fixed shell 10, the sealing element 40 extends into the movement gap 60 through the fixed shell 10, the sealing element 40 is separated from the outer wall of the mirror shell 20 in the retracted state, and the sealing element 40 abuts against the outer wall of the mirror shell 20 in the extended state to block the movement gap 60; the transmission assembly 30 can also be arranged in the mirror shell 20, the sealing element 40 is separated from the outer wall of the fixed shell 10 in the retracted state, and abuts against the outer wall of the fixed shell 10 in the extended state to block the movement gap 60.

[0033] It should be understood that the transmission assembly 30 can be arranged in the fixed shell 10, the sealing element 40 extends into the movement gap 60 through the fixed shell 10, the sealing element 40 is separated from the outer wall of the mirror shell 20 in the retracted state, and the sealing element 40 abuts against the outer wall of the mirror shell 20 in the extended state to block the movement gap 60; the transmission assembly 30 can also be arranged in the mirror shell 20, the sealing element 40 is separated from the outer wall of the fixed shell 10 in the retracted state, and abuts against the outer wall of the fixed shell 10 in the extended state to block the movement gap 60.

[0034] It should be understood that the transmission assembly 30 can be arranged in the fixed shell 10, the sealing element 40 extends into the movement gap 60 through the fixed shell 10, the sealing element 40 is separated from the outer wall of the mirror shell 20 in the retracted state, and the sealing element 40 abuts against the outer wall of the mirror shell 20 in the extended state to block the movement gap 60; the transmission assembly 30 can also be arranged in the mirror shell 20, the sealing element 40 is separated from the outer wall of the fixed shell 10 in the retracted state, and abuts against the outer wall of the fixed shell 10 in the extended state to block the movement gap 60.

[0035] As a specific embodiment of the transmission assembly 30, please refer to Figures 2 to 4 The transmission assembly 30 comprises a first bevel gear 31, a second bevel gear 32 and a slide bar 33; the first bevel gear 31 is sleeved on the rotating shaft 50; the second bevel gear 32 is rotationally connected in the fixed shell 10 and is in meshing cooperation with the first bevel gear 31; the slide bar 33 is slidingly connected in the fixed shell 10 and is parallel to the rotating shaft 50, one end of the slide bar 33 is connected with the second bevel gear 32, and the other end is connected with the sealing element 40; wherein the slide bar 33 is used to drive the sealing element 40 to extend or retract under the rotation driving of the second bevel gear 32.

[0036] Since the movement gap 60 is formed based on the planar connecting area between the mirror shell 20 and the fixed shell 10, and the axial direction of the rotating shaft 50 is perpendicular or close to perpendicular to the planar connecting area, therefore, the movement direction of the sealing element 40 driven by the slide bar 33 should be parallel to the axial direction of the rotating shaft 50, on this basis, the meshing cooperation of the first bevel gear 31 and the second bevel gear 32 can make the second bevel gear 32 be installed in the fixed shell 10 with the side surface parallel to the slide bar 33, so that the eccentric position of the second bevel gear 32 can form the up-down position difference when it rotates, therefore, connecting one end of the slide bar 33 with the eccentric position of the second bevel gear 32 can drive the slide bar 33 to rise and fall by the second bevel gear 32, of course, the rising and falling stroke of the slide bar 33 depends on the eccentricity of the side surface position of the second bevel gear 32 to which the lower end of the slide bar 33 is connected, the greater the eccentricity is, the greater the rising and falling stroke of the slide bar 33 is, the overall structure is simple and compact, and the movement transmission is stable and reliable.

[0037] In some possible implementation manners, please refer to Figure 4 One end of the slide bar 33 is provided with a slide groove 331, the slide groove 331 is arranged at an angle with the slide bar 33; the side wall of the second bevel gear 32 is provided with a protruding eccentric sliding block 321; the eccentric sliding block 321 is slidingly embedded in the slide groove 331. The movement track of the eccentric sliding block 321 is circular when the second bevel gear 32 rotates, and the movement of the slide bar 33 is linear, therefore, by setting the slide groove 331 and the eccentric sliding block 321 to cooperate, the horizontal displacement degree of freedom between the slide bar 33 and the second bevel gear 32 is obtained, when the second bevel gear 32 rotates, the horizontal displacement of the eccentric sliding block 321 is offset by the sliding of the eccentric sliding block 321 in the slide groove 331, and at the same time, the rising and falling of the slide bar 33 is driven by the rising and falling displacement of the eccentric sliding block 321 on the circular movement track 322 of the eccentric sliding block 321, so as to realize the rising and falling extension and retraction of the sealing element 40, the structure is simple and compact and the movement is stable and smooth.

[0038] It should be noted that, please refer to Figure 2The inner wall of the fixed shell 10 is formed with a fixed rib plate 12 above the second bevel gear 32, and the slide rod 33 passes through and is in sliding fit with the fixed rib plate 12. The fixed rib plate 12 and the slide rod 33 are in sliding fit, thereby improving the movement stability of the slide rod 33, avoiding the deflection of the slide rod 33 under force and affecting the extension stability of the sealing element 40, and further ensuring the tightness of the sealing element 40 in the extended state to the movement gap 60.

[0039] Optionally, the connection structure of the sealing element 40 and the slide rod 33 in the embodiment is as shown in Figure 5 The top end of the slide rod 33 is provided with an upwardly extending stop edge 332, and the sealing element 40 is fixedly attached to the stop edge 332. The stop edge 332 is attached to the sealing element 40, which ensures that the sealing element 40 has sufficient connection contact area. The sealing element 40 and the stop edge 332 can be fixed by a plurality of fasteners, and glue can be applied to the attachment surface to further improve the connection reliability. In this way, the sealing element 40 is prevented from falling off when it is extended and pressed against the outer wall of the mirror housing 20, and the connection reliability is improved.

[0040] To further improve the connection reliability of the sealing element 40, as shown in Figure 5 The lower end of the stop edge 332 and the top end of the slide rod 33 form a limiting table 333, and the lower end of the sealing element 40 abuts against the limiting table 333. Since the sealing element 40 will be subjected to a reverse force when it is extended and pressed against the outer wall of the mirror housing 20, the limiting table 333 is provided to abut and support the sealing element 40, thereby preventing the sealing element 40 from falling off under force and connecting with the stop edge 332.

[0041] It should be understood that in the embodiment, referring to Figure 5 The end of the sealing element 40 extending into the movement gap 60 is bent and extended to form a sealing lip 41. The bent and extended sealing lip 41 can increase the contact area when the sealing element 40 is extended and pressed against the outer wall of the mirror housing 20 or the fixed shell 10 under force, thereby improving the sealing effect, avoiding the wind noise whistle problem of the movement gap 60 during vehicle driving, and improving the vehicle NVH performance.

[0042] Based on the same inventive concept, in combination Figures 1 to 5 It should be understood that the embodiments of the present application also provide a rearview mirror assembly comprising the rearview mirror noise reduction structure.

[0043] Compared with the prior art, the rearview mirror assembly provided by the utility model has the rearview mirror noise prevention structure, the rotation movement of the rotating shaft 50 in the folding or unfolding process of the mirror shell 20 drives the expansion and contraction of the sealing element 40, so that the sealing element 40 can block the movement gap 60 when the mirror shell 20 is unfolded, the problem of wind noise whistle in the driving process is avoided, meanwhile, the sealing element 40 can also retract to avoid the movement gap 60 when the mirror shell 20 is folded, the friction noise is avoided, the NVH performance of the vehicle is improved, and the driving comfort is improved.

[0044] Based on the same inventive concept, the embodiment of the application further provides a vehicle comprising the rearview mirror assembly.

[0045] Compared with the prior art, the rearview mirror assembly with the rearview mirror noise prevention structure is adopted in the vehicle, the sealing element 40 can block the movement gap 60 when the mirror shell 20 is unfolded, the problem of wind noise whistle in the driving process is avoided, meanwhile, the sealing element 40 can also retract to avoid the movement gap 60 when the mirror shell 20 is folded, so that the friction noise of the sealing element 40 and the mirror shell 20 is avoided, the NVH performance of the vehicle is improved, and the driving comfort is improved.

[0046] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A noise preventing structure for a rearview mirror, characterized by comprising: The structure comprises a fixed shell (10), a mirror shell (20) and a sealing member (40); the fixed shell (10) is connected to a vehicle body, the mirror shell (20) is rotatably connected to the fixed shell (10) through a rotating shaft (50) and has a movement gap (60) between the two; the sealing member (40) is connected in the fixed shell (10) or the mirror shell (20) and is drivingly connected to the rotating shaft (50); Wherein, when the mirror shell (20) is folded, the sealing member (40) is retracted under the driving of the rotating shaft (50) to avoid the movement gap (60), and when the mirror shell (20) is unfolded, the sealing member (40) is extended under the driving of the rotating shaft (50) to block the windward surface of the movement gap (60).

2. The noise preventing structure for a rearview mirror according to claim 1, wherein The fixed shell (10) is provided with a transmission assembly (30), and the fixed shell (10) is provided with an avoiding groove (11) suitable for the sealing member (40) to pass through, the sealing member (40) and the rotating shaft (50) are connected through the transmission assembly (30); one end of the rotating shaft (50) is rotatably connected to the fixed shell (10), and the other end is fixedly connected to the mirror shell (20).

3. The noise preventing structure for a rearview mirror according to claim 2, wherein The transmission assembly (30) comprises: A first bevel gear (31) is sleeved on the rotating shaft (50); A second bevel gear (32) is rotatably connected in the fixed shell (10) and is engaged with the first bevel gear (31); A slide rod (33) is slidingly connected in the fixed shell (10) and is parallel to the rotating shaft (50), one end of the slide rod (33) is connected to the second bevel gear (32), and the other end is connected to the sealing member (40); Wherein, the slide rod (33) is used to drive the sealing member (40) to extend and retract under the rotation driving of the second bevel gear (32).

4. The noise preventing structure for a rearview mirror according to claim 3, wherein One end of the slide rod (33) is provided with a sliding groove (331), the sliding groove (331) is arranged at an angle with the slide rod (33); the side wall of the second bevel gear (32) is provided with a protruding eccentric sliding block (321); the eccentric sliding block (321) is slidingly embedded in the sliding groove (331).

5. The noise preventing structure for a rearview mirror according to claim 3, wherein The inner wall of the fixed shell (10) is formed with a fixed rib plate (12) above the second bevel gear (32), the slide rod (33) passes through the fixed rib plate (12) and slidingly cooperates with the fixed rib plate (12).

6. The noise preventing structure for a rearview mirror according to claim 3, wherein The top end of the slide rod (33) is provided with an upwardly extending stop edge (332), and the sealing member (40) is fixedly attached to the stop edge (332).

7. The noise preventing structure for a rearview mirror according to claim 6, wherein The lower end of the stop edge (332) and the top end of the slide rod (33) form a limiting table (333), and the lower end of the sealing member (40) abuts against the limiting table (333).

8. The noise prevention structure for a rearview mirror according to any one of claims 1 to 7, wherein The end of the sealing member (40) extending into the movement gap (60) is bent to form a sealing lip (41).

9. A rearview mirror assembly characterized by, The structure comprises a rearview mirror noise prevention structure according to any one of claims 1-8.

10. Vehicle, characterized in that The structure comprises a rearview mirror assembly according to claim 9.

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