Folding device, rearview device and vehicle

Abstract

The application relates to a folding device, a rearview device and a vehicle. The folding device comprises a folding column body penetrating a folding shell and connected to a vehicle body, the folding shell being capable of rotating relative to the vehicle body around a first axis; a turnover shell being capable of rotating relative to the folding shell around a second axis, the second axis being arranged at an angle with the first axis; wherein the turnover shell comprises a first shell body and a second shell body connected to each other, the first shell body and the second shell body being located on opposite sides of the folding shell along a first direction; a containing groove being surrounded between the first shell body and the second shell body, the containing groove being wrapped around one end of the folding shell along a second direction, the containing groove and the folding column body being arranged to avoid each other along the second direction, the second direction being parallel to the direction in which the second axis is located. The folding device, the rearview device and the vehicle can rotatably arrange the turnover shell on the folding shell around the second axis, and the structure between the turnover shell and the folding column body does not interfere with each other.

Description

Technical Field

[0001] This application relates to the field of rearview mirror technology, and in particular to a folding device, rearview equipment, and vehicle. Background Technology

[0002] In existing vehicles, rearview mirrors need to be folded, unfolded, and adjusted to facilitate user observation of vehicle conditions. Although the folding, unfolding, and adjustment of rearview mirrors have been achieved through the integrated design of folding mechanism and mirror actuator, problems such as unreasonable structural layout and poor mechanical transmission effect still exist, which reduces the structural reliability and ease of use of the folding device. Summary of the Invention

[0003] Therefore, it is necessary to provide a folding device, a rearview device, and a vehicle to address the problems of poor structural reliability and ease of use of existing folding devices.

[0004] A folding device is connected to a vehicle body. The folding device includes: a folding mechanism comprising a folding outer shell and a folding column, the folding column passing through the folding outer shell and connected to the vehicle body, the folding outer shell being rotatable relative to the vehicle body about a first axis, the first axis being the axis of the folding column; and a flipping mechanism comprising a flipping outer shell connected to the folding outer shell, the flipping outer shell being used to mount a rearview mirror, the flipping outer shell being rotatable relative to the folding outer shell about a second axis, the second axis being at an angle to the first axis; wherein the flipping outer shell comprises a first housing and a second housing connected together, the first housing and the second housing being located on opposite sides of the folding outer shell along a first direction, the first direction being parallel to the direction of the first axis; a receiving groove is formed between the first housing and the second housing, the receiving groove wrapping around one end of the folding outer shell along a second direction, the receiving groove being disposed away from the folding column along the second direction, the second direction being parallel to the direction of the second axis.

[0005] The aforementioned folding device enables the rearview mirror to be folded and unfolded by rotating the folding shell relative to the vehicle body around a first axis, and the rearview mirror angle can be adjusted by rotating the flip shell relative to the folding shell around a second axis. The flip shell includes a first shell and a second shell connected together, and a receiving groove is formed between the first shell and the second shell to enclose one end of the folding shell along a second direction. The receiving groove is arranged to avoid the folding column along the second direction, so that the flip shell can be rotatably mounted on the folding shell around the second axis. At the same time, the structure between the flip shell and the folding column will not interfere with each other and will not affect the assembly between the folding column and the vehicle body after it passes through the folding shell. The structural design is reasonable and compact.

[0006] In some embodiments, the flip-out housing further includes a third housing, one end of which is connected to the wall of the receiving groove along the second direction, and the other end of which is hinged to the folding housing along the second direction, so that the third housing can rotate about the second axis relative to the folding housing.

[0007] In some embodiments, the third housing is configured as an annular structure surrounding the outer periphery of the folding outer shell and having a clearance portion that extends through the annular structure along the first direction, so that the folding column and at least a portion of the folding outer shell can be exposed through the clearance portion.

[0008] In some embodiments, the third housing has a first mounting hole at the other end along the second direction, the folding outer shell has a second mounting hole, and the hinge shaft passes through the first mounting hole and the second mounting hole, so that the third housing can rotate about the second axis relative to the folding outer shell.

[0009] In some embodiments, the first housing and the second housing are an integral structure.

[0010] In some embodiments, the folding shell is provided with a first guide at one end along the second direction, and a second guide is provided in the receiving groove to guide and cooperate with the first guide; one of the first guide and the second guide is an arc-shaped guide rail, and the other of the first guide and the second guide is an arc-shaped guide groove.

[0011] In some embodiments, the second guide is disposed on the inner wall of the first housing and / or the inner wall of the second housing.

[0012] In some embodiments, the flipping mechanism further includes a flipping guide post, which is spaced apart from the folding column in the second direction; the flipping guide post passes through the receiving groove and extends into the folding housing, and the flipping housing is rotatable about the second axis relative to the flipping guide post.

[0013] In some embodiments, the flipping guide post includes an arc-shaped guide platform and a connecting post. The arc-shaped guide platform has a first arc surface on one side along the first direction. The connecting post protrudes from the first arc surface and passes through the receiving groove and extends into the folding housing. The flipping housing has a second arc surface on the side facing the arc-shaped guide platform. The curvature of the second arc surface is equal to that of the first arc surface. When the flipping housing can rotate relative to the flipping guide post about the second axis, the second arc surface guides and engages with the first arc surface.

[0014] In some embodiments, the folding shell is further provided with a third arc surface on the side facing the second arc surface, and the arc of the third arc surface is equal to the arc of the first arc surface; the flipping mechanism further includes a first elastic element, and a first retaining ring is provided at the end of the connecting post away from the first arc surface. The first elastic element is sleeved on the connecting post, and the first elastic element is limited to the space between the first retaining ring and the third arc surface.

[0015] In some embodiments, the flipping mechanism further includes a flipping drive assembly. A first flipping gear is provided inside the housing. The first flipping gear passes through the receiving groove and extends into the folding housing. The flipping drive assembly is located inside the folding housing and is connected to the first flipping gear in a driving manner. Under the drive of the flipping drive assembly, the first flipping gear is rotated, causing the flipping housing to rotate relative to the folding housing about the second axis.

[0016] In some embodiments, the flip drive assembly includes a flip drive member and a flip worm gear. The folding housing has a first holding part, and the flip worm gear is rotatably disposed in the first holding part. The flip drive member is connected to the flip worm gear, and the flip worm gear meshes with the first flip gear. Under the drive of the flip drive member, the flip worm gear rotates, meshing with and driving the first flip gear to rotate around the second axis, thereby causing the flip housing to rotate relative to the folding housing around the second axis.

[0017] In some embodiments, the flip drive assembly further includes a first transmission member, the output shaft of which is provided with a flip tooth, the flip tooth being connected to the flip worm gear via the first transmission member; the first transmission member includes at least two first transmission wheels meshing along the first direction, each of the first transmission wheels being rotatable about the second axis, the two first transmission wheels being a primary gear, or one of the two transmission wheels being a secondary gear.

[0018] In some embodiments, the flip drive assembly further includes a second transmission member, the output shaft of which is provided with a flip tooth, the flip tooth being connected to the flip worm gear via the second transmission member; the second transmission member includes a second transmission rod and a second transmission wheel fixedly connected to the second transmission rod, the second transmission wheel meshing with the flip tooth, the second transmission rod meshing with the flip worm gear, the second transmission rod extending along the first direction and capable of rotating around the first axis.

[0019] In some embodiments, the first flipping gear is integrally formed on the inner wall of the first housing and / or the inner wall of the second housing.

[0020] In some embodiments, the flipping mechanism further includes a first detection component disposed within the receiving groove and used to record the angle of rotation of the flipping housing relative to the folding housing about the second axis.

[0021] In some embodiments, the first detection component includes a first potentiometer and a first toothed part arranged coaxially, and a second flip gear is also provided inside the folding housing. The second flip gear and the first flip gear are spaced apart in the first direction, and the second flip gear meshes with the first toothed part. When the flipping housing rotates relative to the folding housing about the second axis, the second flip gear rotates relative to the first toothed part about the second axis. The first potentiometer is used to record the angle of rotation of the second flip gear relative to the first toothed part about the second axis.

[0022] In some embodiments, the folding mechanism further includes a folding drive assembly, and a first folding gear is provided inside the folding housing. The folding drive assembly is pulsatorically connected to the first folding gear. Under the drive of the folding drive assembly, the first folding gear remains stationary, and the folding housing can rotate relative to the vehicle body about the first axis, so that the folding housing can switch between a folded position and an unfolded position.

[0023] In some embodiments, the folding drive assembly includes a folding drive component and a folding worm gear. A second holding portion is provided inside the folding housing. The folding worm gear is rotatably disposed in the second holding portion. The folding drive component is connected to the folding worm gear, and the folding worm gear meshes with the first folding gear. Under the drive of the folding drive component, the first folding gear does not rotate, and the folding worm gear is driven to rotate around the first axis, thereby causing the folding housing to rotate relative to the vehicle body around the first axis.

[0024] In some embodiments, the folding drive assembly further includes a third transmission member, the output shaft of which is provided with folding teeth, the folding teeth being connected to the folding worm gear via the third transmission member; the third transmission member includes at least two third transmission wheels meshing along the first direction, each of the third transmission wheels being rotatable about the second axis, and the two third transmission wheels being primary gears, or one of the two third transmission wheels being a secondary gear.

[0025] In some embodiments, the folding drive assembly further includes a fourth transmission member, the output shaft of which is provided with folding teeth, the folding teeth being connected to the folding worm gear via the fourth transmission member; the fourth transmission member includes a fourth transmission rod and a fourth transmission wheel fixedly connected to the fourth transmission rod, the fourth transmission wheel meshing with the folding teeth, the fourth transmission rod meshing with the folding worm gear, and the fourth transmission rod extending along the first direction and capable of rotating around the first axis.

[0026] In some embodiments, the folding mechanism further includes a locking member disposed within the folding housing and arranged side-by-side with the first folding gear along the first direction. When the folding drive is in operation, the locking member engages with the first folding gear in the first direction, thereby restricting the first folding gear from rotating around the first axis. The folding worm rotates relative to the first folding gear around the first axis, causing the folding housing to rotate relative to the vehicle body around the first axis. When the folding drive is not in operation, and the folding housing is driven to rotate relative to the vehicle body around the first axis by an external force, the locking member and the first folding gear separate in the first direction, allowing the first folding gear to rotate around the first axis and causing the locking member to rotate around the first axis.

[0027] In some embodiments, the locking member has a first locking portion on the side facing the first folding gear, and the first folding gear has a second locking portion on the side facing the locking member; when the folding drive is running, the first locking portion and the second locking portion are engaged in the first direction so that the locking member and the first folding gear are engaged with each other; when the folding drive is not running and the folding shell is rotated relative to the vehicle body about the first axis by an external force, the first locking portion and the second locking portion push against each other so that the locking member and the first folding gear are separated from each other in the first direction.

[0028] In some embodiments, the first locking portion is a toothed protrusion circumferentially arranged along the locking member, and the second locking portion is a toothed groove circumferentially arranged along the first folding gear.

[0029] In some embodiments, the folding mechanism further includes a second elastic element, one end of which is fixed to the folding column and the other end of which is fixed to the first folding gear, and is used to restrict the first folding gear from rotating about the first axis.

[0030] In some embodiments, the locking member is provided with a clearance groove for the folding column to pass through along the first direction. The inner circumference of the clearance groove is provided with a first limiting part, and the outer circumference of the folding column is provided with a second limiting part. The second limiting part cooperates with the first limiting part to limit the movement range of the locking member in the first direction. One of the first limiting part and the second limiting part is a limiting groove, and the other of the first limiting part and the second limiting part is a limiting protrusion.

[0031] In some embodiments, the folding mechanism further includes a second detection component disposed within the folding housing and used to record the angle of rotation of the locking member about the first axis.

[0032] In some embodiments, the second detection component includes a second potentiometer and a second tooth arranged coaxially, and the outer periphery of the locking member is provided with a third tooth that meshes with the second tooth; when the folding drive is not running, and the folding shell is driven by an external force to rotate relative to the vehicle body around the first axis, the first folding gear can rotate around the first axis and drive the locking member to rotate around the first axis, and the second potentiometer is used to record the angle of rotation of the locking member around the first axis.

[0033] In some embodiments, the folding housing includes a first portion and a second portion, the first portion and the second portion overlapping each other, the first portion and the second portion together defining a receiving space for accommodating the folding drive assembly.

[0034] In some embodiments, both the first part and the second part are provided with slots through which the folded column passes, and the slots are cylindrical grooves that pass through the first part and the second part along the first direction.

[0035] A rearview device includes the aforementioned folding device and a rearview mirror, wherein the rearview mirror is disposed on the folding device.

[0036] The aforementioned rearview device enables the rearview mirror to be folded and unfolded by rotating the folding shell relative to the vehicle body around a first axis, and the rearview mirror angle can be adjusted by rotating the flip shell relative to the folding shell around a second axis. The flip shell includes a first shell and a second shell connected together, and a receiving groove is formed between the first shell and the second shell to enclose one end of the folding shell along a second direction. The receiving groove is arranged to avoid the folding column along the second direction, so that the flip shell can be rotatably mounted on the folding shell around the second axis. At the same time, the structure between the flip shell and the folding column will not interfere with each other and will not affect the assembly between the folding column and the vehicle body after it passes through the folding shell. The structural design is reasonable and compact.

[0037] A vehicle that includes the aforementioned rearview device.

[0038] The aforementioned vehicle can fold and unfold the rearview mirrors by rotating the folding shell relative to the vehicle body around the first axis, and can adjust the angle of the rearview mirrors by rotating the flip shell relative to the folding shell around the second axis. The adjustment is convenient and the structures do not interfere with each other. The structural design is reasonable and compact. Attached Figure Description

[0039] Figure 1 The following is an isometric view of the folding device in some embodiments of this application.

[0040] Figure 2 for Figure 1 A partial exploded view of the folding device shown.

[0041] Figure 3 for Figure 2 A schematic diagram of the flipped outer shell in the folding device shown.

[0042] Figure 4 for Figure 1 Top view of the folding device shown.

[0043] Figure 5 for Figure 4 A sectional view of the folding device shown from plane AA.

[0044] Figure 6 for Figure 4 A cross-sectional view of the folding device shown from the BB plane.

[0045] Figure 7 for Figure 4 The folding device shown is a cross-sectional view along the C-plane.

[0046] Figure 8 for Figure 2 A schematic diagram of the folding device after the flip-over outer shell has been removed.

[0047] Figure 9 for Figure 8 A schematic diagram of the internal structure of the folding device shown.

[0048] Figure 10 for Figure 9 A schematic diagram of the second housing of the folding outer shell in the folding device shown.

[0049] Figure 11 for Figure 9 A schematic diagram of the folding drive assembly and the flipping drive assembly in the folding device shown.

[0050] Figure 12 This is a schematic diagram of the folding drive assembly and the flipping drive assembly in other embodiments.

[0051] Figure 13 for Figure 9 A schematic diagram of the locking element and the first folding gear in the folding device shown.

[0052] Figure label:

[0053] 10. Folding mechanism; 100. Folding housing; 101. Second mounting hole; 102. Hinge shaft; 103. First guide; 104. Third arc surface; 105. Slot; 106. First folding gear; 106a. Second locking part; 107. Second holding part; 108. First holding part; 110. First part; 120. Second part; 200. Folding column; 201. Second limiting part; 800. Folding drive assembly; 810. Folding drive component; 811. Folding tooth; 820. Folding worm gear; 830. Third transmission wheel; 841. Fourth transmission rod; 842. Fourth transmission wheel; 910. Locking component; 911. First locking part; 912. Clearance groove; 913. Third tooth; 920. Second elastic element; 930. Second detection assembly; 931. Second potentiometer; 932. Second tooth;

[0054] 20. Flipping mechanism; 300. Flipping housing; 301. Receiving groove; 301a. Second guide; 301b. Second flipping gear; 302. Second arc surface; 303. First flipping gear; 310. First housing; 320. Second housing; 330. Third housing; 331. Clearance; 332. First mounting hole; 400. Flipping guide post; 410. Arc-shaped guide platform; 411. First arc surface; 420. Connecting post; 430. First retaining ring; 500. First elastic element; 600. Flipping drive assembly; 610. Flipping drive component; 611. Flipping gear; 620. Flipping worm; 630. First transmission wheel; 641. Second transmission rod; 642. Second transmission wheel; 700. First detection assembly; 710. First potentiometer; 720. First gear. Detailed Implementation

[0055] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0056] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this application, unless otherwise expressly specified and limited, the terms "initial," "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0061] Please refer to Figures 1 to 3 In one embodiment, the folding device is connected to the vehicle body. The folding device includes a folding mechanism 10 and a flipping mechanism 20. The folding mechanism 10 includes a folding shell 100 and a folding column 200. The folding column 200 passes through the folding shell 100 and is connected to the vehicle body. The folding shell 100 can rotate relative to the vehicle body about a first axis, which is the axis of the folding column 200. The flipping mechanism 20 includes a flipping shell 300 connected to the folding shell 100. A rearview mirror is mounted on the flipping shell 300. The flipping shell 300 can rotate relative to the folding shell 100 about a second axis, which is set at an angle to the first axis.

[0062] The flip-out housing 300 includes a first housing 310 and a second housing 320 connected together. The first housing 310 and the second housing 320 are located on opposite sides of the folding housing 100 along a first direction, which is parallel to the direction of the first axis. A receiving groove 301 is formed between the first housing 310 and the second housing 320. The receiving groove 301 wraps around one end of the folding housing 100 along a second direction. The receiving groove 301 is disposed away from the folding column 200 along the second direction, which is parallel to the direction of the second axis.

[0063] It should be noted that the first axis is Figure 1 As shown in Z1, the second axis is Figure 2 As shown in Z2, the second axis is set at an angle to the first axis; the angle can be acute, right, or obtuse. The first direction is... Figure 1 The X direction shown is parallel to the first axis; the second direction is... Figure 1 The Y direction shown is the direction parallel to the second axis.

[0064] It should be further explained that the receiving groove 301 and the folding column 200 are arranged to avoid each other along the second direction, which can be understood as: the structures of the receiving groove 301 and the folding column 200 do not overlap in the second direction. That is, the receiving groove 301 and the folding column 200 can be arranged side by side with intervals or side by side adjacent to each other in the second direction, as long as their structures do not overlap in the second direction.

[0065] Here, the folding device is used in the vehicle's rearview equipment (e.g., a rearview mirror), and the flip-up housing 300 is used to mount the rearview mirror. When the folding housing 100 rotates relative to the vehicle body about a first axis, the flip-up housing 300 rotates with the folding housing 100 about the first axis, and drives the rearview mirror on the flip-up housing 300 to rotate about the first axis, so that the rearview mirror can switch between a folded position and an unfolded position; when the flip-up housing 300 can rotate relative to the folding housing 100 about a second axis, it drives the rearview mirror on the flip-up housing 300 to rotate about the second axis, so that the rearview mirror can be flipped up and down to adjust the angle.

[0066] The aforementioned folding device enables the rearview mirror to be folded and unfolded by rotating the folding outer shell 100 relative to the vehicle body around a first axis, and enables the rearview mirror angle adjustment by rotating the flipping outer shell 300 relative to the folding outer shell 100 around a second axis. The flipping outer shell 300 includes a first shell 310 and a second shell 320 connected together. The first shell 310 and the second shell 320 form a receiving groove 301 that surrounds one end of the folding outer shell 100 along a second direction. The receiving groove 301 is arranged to avoid the folding column 200 along the second direction, so that the flipping outer shell 300 can be rotatably mounted on the folding outer shell 100 around the second axis. At the same time, the structure between the flipping outer shell 300 and the folding column 200 will not interfere with each other and will not affect the assembly between the folding column 200 and the vehicle body after it passes through the folding outer shell 100. The structural design is reasonable and compact.

[0067] In the embodiments of this application, the folding column 200 passes through the folding shell 100 and is connected to the vehicle body. This can be achieved in various ways. For example, the folding shell 100 has a slot 105 through which the folding column 200 passes. The height of the folding column 200 in the first direction is less than or equal to the height of the slot 105. The folding column 200 and the vehicle body can be fixedly connected by snap-fit, plug-in, or other methods. The folding column 200 is a cylindrical structure extending along the first direction, and the cylindrical structure can be solid or hollow.

[0068] In the embodiments of this application, the flip-out shell 300 is connected to the folding shell 100, and the flip-out shell 300 can rotate relative to the folding shell 100 about a second axis. That is, the flip-out shell 300 and the folding shell 100 are rotatably connected. The rotatable connection can be achieved in a variety of ways. For example, by setting a rotating ball joint or a rotating shaft between the flip-out shell 300 and the folding shell 100, the flip-out shell 300 and the folding shell 100 can be rotatably connected.

[0069] In the embodiments of this application, the receiving groove 301 wraps around one end of the folding shell 100 along the second direction. That is, the receiving groove 301 has an open end and a closed end at opposite ends along the second direction. One end of the folding shell 100 along the second direction can be inserted into the receiving groove 301 through the open end of the receiving groove 301, so that the receiving groove 301 wraps around one end of the folding shell 100 along the second direction. There is a gap between the one end of the folding shell 100 along the second direction and the inner wall of the receiving groove 301, so that when the flip shell 300 rotates relative to the folding shell 100 about the second axis, there will be no interference between the folding shell 100 and the inner wall of the receiving groove 301, thus preventing the rotation of the flip shell 300.

[0070] Please refer to Figure 2 and Figure 3 The flip-out housing 300 also includes a third housing 330, one end of which is connected to the wall of the receiving groove 301 along the second direction, and the other end of which is hinged to the folding housing 100 along the second direction, so that the third housing 330 can rotate about the second axis relative to the folding housing 100.

[0071] It should be noted that one end of the third housing 330 along the second direction is connected to the wall of the receiving groove 301. That is, the third housing 330 is at least partially located on one side of the receiving groove 301 along the second direction (that is, the side where the folded column 200 is located). Since the third housing 330 and the folded column 200 are both located on the same side of the receiving groove 301, the third housing 330 and the folded column 200 are arranged in a way that avoids interference between them in the first direction.

[0072] Here, the third housing 330 and the folding column 200 are arranged to avoid contact in the first direction, which can be understood as: the third housing 330 reserves space in the first direction so that the folding column 200 does not contact the third housing 330 in the first direction.

[0073] With the above configuration, the two ends of the third housing 330 along the second direction are respectively connected to the groove wall of the receiving groove 301 and the folding outer shell 100, which enables the flipping outer shell 300 to be rotatably disposed on the folding outer shell 100 around the second axis, while the structure between the flipping outer shell 300 and the folding column 200 will not interfere with each other.

[0074] In the embodiments of this application, one end of the third housing 330 along the second direction is connected to the groove wall of the receiving groove 301. The third housing 330 and the groove wall of the receiving groove 301 can be connected in a variety of ways, such as detachable connection by snap-fit ​​or plug-in, or non-detachable connection by riveting or welding.

[0075] In the embodiments of this application, the other end of the third housing 330 along the second direction is hinged to the folding outer shell 100. The third housing 330 and the folding outer shell 100 can be hinged in a variety of ways, such as by providing a hinge structure such as a rotating ball joint or a rotating shaft between the third housing 330 and the folding outer shell 100.

[0076] For details, please refer to Figure 3 The third housing 330 is constructed as an annular structure surrounding the outer periphery of the folding outer shell 100 around the first axis and having a clearance portion 331. The clearance portion 331 penetrates the annular structure along the first direction so that the folding column 200 and at least part of the folding outer shell 100 can be exposed through the clearance portion 331.

[0077] It should be noted that, since the rearview mirror needs to be mounted on the flip-up housing 300, the annular structure of the third housing 330 and the outer wall of the receiving groove 301 can provide installation space for the rearview mirror. For example, the two ends of the rearview mirror along the second direction are respectively connected to the annular structure and the outer wall of the receiving groove 301, so that the rearview mirror spans the third housing 330 and the first housing 310 along the second direction.

[0078] The above configuration ensures that the structures of the flip-out shell 300 and the folding column 200 do not interfere with each other, and makes the structure of the third shell 330 compact, which helps to improve space utilization.

[0079] In the embodiments of this application, the third housing 330 is constructed as an annular structure that is arranged around the first axis around the outer periphery of the folding outer shell 100 and has a clearance portion 331. The annular structure is semi-closed, that is, the annular structure has a closed side and an open side along the second direction. The closed side of the annular structure (that is, the other end of the third housing 330 along the second direction) is hinged to the folding outer shell 100, and the open side of the annular structure (that is, the end of the third housing 330 along the second direction) is connected to the groove wall of the receiving groove 301.

[0080] In the embodiments of this application, the clearance portion 331 penetrates the annular structure along the first direction, that is, the clearance portion 331 is a through-groove structure penetrating the annular structure along the first direction, and the shape of the through-groove structure can be a cylindrical groove or other shapes. In the second direction, the size of the clearance portion 331 needs to be greater than the size of the folding column 200 and less than or equal to the size of the folding outer shell 100 so that the folding column 200 and at least part of the folding outer shell 100 can be exposed through the clearance portion 331.

[0081] For more specific details, please refer to Figure 2 and Figure 3The third housing 330 is provided with a first mounting hole 332 at the other end along the second direction, and the folding outer shell 100 is provided with a second mounting hole 101. The hinge shaft 102 passes through the first mounting hole 332 and the second mounting hole 101 so that the third housing 330 can rotate relative to the folding outer shell 100 about the second axis.

[0082] With the above configuration, the hinge shaft 102 and each mounting hole can be used to rotatably mount the flip-out housing 300 on the folding housing 100 around the second axis, resulting in a simple and reasonable structural design.

[0083] In the embodiments of this application, since the third housing 330 is arranged around the outer periphery of the folding housing 100, the first mounting hole 332 and the second mounting hole 101 are arranged side by side along the second direction so that the hinge shaft 102 can pass through the first mounting hole 332 and the second mounting hole 101. Here, the second axis is the axis of the first reversing gear 303.

[0084] For a specific embodiment, please refer to Figure 3 The first housing 310 and the second housing 320 are an integral structure.

[0085] With the above configuration, the first housing 310 and the second housing 320 are integrally formed, which makes the flip-out housing 300 have good integrity and is easy to assemble and disassemble quickly.

[0086] In the embodiments of this application, the first housing 310 and the second housing 320 can be integrally formed in various ways, such as by casting or injection molding.

[0087] Please refer to Figure 2 and Figure 3 The folding shell 100 is provided with a first guide 103 at one end along the second direction, and a second guide 301a is provided in the receiving groove 301 to guide and cooperate with the first guide 103; one of the first guide 103 and the second guide 301a is an arc-shaped guide rail, and the other of the first guide 103 and the second guide 301a is an arc-shaped guide groove.

[0088] It is understandable that when the flip-out housing 300 rotates about the second axis relative to the folding housing 100, the arc-shaped guide rail can slide within the arc-shaped guide groove to guide the engagement between the first guide member 103 and the second guide member 301a.

[0089] With the above settings, when the flip-out housing 300 rotates around the second axis relative to the folding housing 100, the guiding cooperation between the arc-shaped guide rail and the arc-shaped guide groove can guide the rotation of the flip-out housing 300 around the second axis, preventing the flip-out housing 300 from shifting its position during the rotation around the second axis.

[0090] In the embodiments of this application, the arc-shaped guide rail and the arc-shaped guide groove are configured to mimic each other, that is, the shapes of the arc-shaped guide rail and the arc-shaped guide groove are matched to make the arc-shaped guide rail and the arc-shaped guide groove fit together more closely. For example, the arc-shaped guide rail is arc-shaped, and the arc-shaped guide groove is also arc-shaped; the arc-shaped guide rail is semi-circular, and the arc-shaped guide groove is also semi-circular.

[0091] In the embodiments of this application, the number of arc-shaped guide rails and arc-shaped guide grooves is not limited to one. When the number of arc-shaped guide rails is at least two, the arc-shaped guide grooves and arc-shaped guide rails are set in a one-to-one correspondence.

[0092] For details, please refer to Figure 2 and Figure 3 The second guide member 301a is disposed on the inner wall of the first housing 310 and / or the inner wall of the second housing 320.

[0093] With the above settings, the position of the second guide 301a can be flexibly adjusted according to actual needs or space size.

[0094] In embodiments of this application, the second guide member 301a may be disposed only on the inner wall of the first housing 310 or the inner wall of the second housing 320. For example, the second guide member 301a may be a single semi-circular arc. Alternatively, the second guide member 301a may also be disposed on the inner walls of both the first housing 310 and the second housing 320. For example, the second guide member 301a may be two buttressing and discontinuous semi-circular arcs, or the second guide member 301a may be two buttressing and continuous semi-circular arcs.

[0095] Please refer to Figure 2 , Figure 4 and Figure 5 The flipping mechanism 20 also includes a flipping guide post 400, which is spaced apart from the folding column 200 in the second direction; the flipping guide post 400 passes through the receiving groove 301 and extends into the folding housing 100, and the flipping housing 300 is able to rotate about the second axis relative to the flipping guide post 400.

[0096] It should be noted that the flip guide post 400 has a fixed end and a free end that are arranged opposite to each other along the first direction. The free end of the flip guide post 400 passes through the receiving groove 301 and extends into the folding shell 100, while the fixed end of the flip guide post 400 is limited to the outside of the receiving groove 301.

[0097] With the above configuration, the flip guide post 400 and the folding post 200 are spaced apart in the second direction. When the flip shell 300 rotates relative to the folding shell 100 around the second axis, the flip shell 300 can rotate relative to the flip guide post 400 around the second axis. The flip guide post 400 can further guide the rotation of the flip shell 300 around the second axis.

[0098] In the embodiments of this application, the free end of the flip guide post 400 passes through the receiving groove 301 and extends into the folding shell 100. Both the receiving groove 301 and the folding shell 100 are provided with through holes for the free end of the flip guide post 400 to pass through.

[0099] For details, please refer to Figure 2 and Figure 5 The flip guide post 400 includes an arc-shaped guide platform 410 and a connecting post 420. The arc-shaped guide platform 410 has a first arc surface 411 on one side along the first direction. The connecting post 420 protrudes from the first arc surface 411 and passes through the receiving groove 301 and extends into the folding shell 100. The flip shell 300 has a second arc surface 302 on the side facing the arc-shaped guide platform 410. The curvature of the second arc surface 302 is equal to the curvature of the first arc surface 411. When the flip shell 300 can rotate relative to the flip guide post 400 around the second axis, the second arc surface 302 and the first arc surface 411 are guided and engaged.

[0100] It is understood that the arc-shaped guide platform 410 is the fixed end of the flip guide post 400, and the end of the connecting post 420 away from the first arc surface 411 is the free end of the flip guide post 400. The end of the connecting post 420 away from the first arc surface 411 passes through the receiving groove 301 and extends into the folding shell 100, while the arc-shaped guide platform 410 is confined outside the receiving groove 301. When the flip shell 300 can rotate relative to the flip guide post 400 about the second axis, the second arc surface 302 slides relative to the first arc surface 411 to guide and engage with the first arc surface 411.

[0101] With the above configuration, a first arc surface 411 is provided on the arc-shaped guide platform 410 of the flip guide post 400, and a second arc surface 302 with the same curvature as the first arc surface 411 is provided on the side of the flip shell 300 facing the arc-shaped guide platform 410. When the flip shell 300 rotates around the second axis relative to the folding shell 100, the guiding cooperation between the second arc surface 302 and the first arc surface 411 can guide the rotation of the flip shell 300 around the second axis, and prevent the position of the flip shell 300 from shifting during the rotation around the second axis.

[0102] In the embodiments of this application, the arc-shaped guide platform 410 has a first arc surface 411 on one side along the first direction, and the connecting column 420 protrudes from the first arc surface 411. The connecting column 420 and the arc-shaped guide platform 410 are an integral structure with good integrity and easy disassembly and assembly. For example, the connecting column 420 and the arc-shaped guide platform 410 can be integrally formed by casting, injection molding, etc.

[0103] In the embodiments of this application, the curvature of the second arc surface 302 is equal to that of the first arc surface 411. The second arc surface 302 and the first arc surface 411 can be spherical, ellipsoidal, parabolic or other types of curved surfaces. The types of the second arc surface 302 and the first arc surface 411 are not limited here.

[0104] For more specific details, please refer to Figures 5 to 7 The folding outer shell 100 is also provided with a third arc surface 104 on the side facing the second arc surface 302. The arc of the third arc surface 104 is equal to the arc of the first arc surface 411. The flipping mechanism 20 also includes a first elastic element 500. The end of the connecting post 420 away from the first arc surface 411 is provided with a first retaining ring 430. The first elastic element 500 is sleeved on the connecting post 420 and is limited to the first retaining ring 430 and the third arc surface 104.

[0105] Understandably, when the flip-out housing 300 rotates relative to the folding housing 100 about the second axis, the second arc surface 302 will slide relative to the first arc surface 411, and the presence of the third arc surface 104 can reserve space for the movement of the second arc surface 302. In addition, since the end of the connecting post 420 away from the first arc surface 411 passes through the receiving groove 301 and extends into the folding housing 100, a first retaining ring 430 is provided at the end of the connecting post 420 away from the first arc surface 411. By limiting the first elastic member 500 between the first retaining ring 430 and the third arc surface 104, the first retaining ring 430 can be used to limit the end of the connecting post 420 away from the first arc surface 411 to be within the folding housing 100, and the first elastic member 500 can be used to elastically press the flip-out guide post 400.

[0106] With the above settings, when the flip shell 300 rotates relative to the folding shell 100 around the second axis, the second arc surface 302 will slide relative to the first arc surface 411. The presence of the third arc surface 104 can reserve space for the movement of the second arc surface 302, preventing the folding shell 100 from interfering with the rotation of the flip shell 300. The first retaining ring 430 can be used to limit the end of the connecting post 420 away from the first arc surface 411 to be located inside the folding shell 100, and the first elastic member 500 can be used to elastically press the flip guide post 400, preventing the flip guide post 400 from loosening significantly.

[0107] In the embodiments of this application, the curvature of the third arc surface 104 is equal to that of the first arc surface 411. The third arc surface 104 can be a sphere, an ellipsoid, a parabola, or other types of curved surfaces. The type of the third arc surface 104 is not limited here.

[0108] In the embodiments of this application, the first elastic element 500 is a spring, and the number of the first elastic element 500 is not limited to one, that is, the number of the first elastic element 500 can be at least two.

[0109] Please refer to Figure 8 and Figure 9 The flipping mechanism 20 also includes a flipping drive assembly 600. A first flipping gear 303 is provided inside the flipping housing 300. The first flipping gear 303 passes through the receiving groove 301 and extends into the folding housing 100. The flipping drive assembly 600 is located inside the folding housing 100 and is connected to the first flipping gear 303 in a transmission connection. Under the drive of the flipping drive assembly 600, the first flipping gear 303 is rotated, causing the flipping housing 300 to rotate relative to the folding housing 100 around the second axis.

[0110] With the above settings, the flipping drive component 600 and the first flipping gear 303 work together to drive the flipping shell 300 to rotate around the second axis relative to the folding shell 100, which can smoothly realize the automatic rotation of the flipping shell 300 and improve the automation level of the folding device.

[0111] In the embodiments of this application, the first flip gear 303 passes through the receiving groove 301 and extends into the folding housing 100. That is, one end of the first flip gear 303 is fixed to the inner wall of the receiving groove 301, and the other end of the first flip gear 303 passes through the receiving groove 301 and extends into the folding housing 100. The other end of the first flip gear 303 is connected to the flip drive assembly 600 inside the folding housing 100. The first flip gear 303 can have various structural forms, as long as it has a toothed structure.

[0112] In the embodiments of this application, the flip drive assembly 600 is connected to the first flip gear 303 by transmission. The transmission connection can be a direct connection or an indirect connection (for example, the flip drive assembly 600 and the first flip gear 303 are connected to the first flip gear 303 through multiple transmission teeth).

[0113] For details, please refer to Figures 8 to 10 The flip drive assembly 600 includes a flip drive component 610 and a flip worm gear 620. A first holding part 108 is provided inside the folding shell 100. The flip worm gear 620 is rotatably disposed in the first holding part 108. The flip drive component 610 is connected to the flip worm gear 620, and the flip worm gear 620 meshes with a first flip gear 303. Under the drive of the flip drive component 610, the flip worm gear 620 rotates, meshing and driving the first flip gear 303 to rotate around the second axis, thereby driving the flip shell 300 to rotate relative to the folding shell 100 around the second axis.

[0114] With the above configuration, the combined action of the flipping drive 610, the flipping worm 620 and the first flipping gear 303 can drive the flipping outer shell 300 to rotate around the second axis relative to the folding outer shell 100, which facilitates the smooth automatic rotation of the flipping outer shell 300.

[0115] In the embodiments of this application, the flipping worm 620 is rotatably disposed on the first holding portion 108, which can be achieved in various ways. For example, two spaced-apart first holding portions 108 are provided inside the folding housing 100, each first holding portion 108 having a slot. The flipping worm 620 includes a rod body and a threaded portion disposed outside the rod body. The threaded portion is located in the middle region of the rod body, and both ends of the rod body are respectively held in the slots of the two first holding portions 108. The threaded portion meshes with the first flipping gear 303.

[0116] In the embodiments of this application, the flip drive 610 is connected to the flip worm 620. The flip drive 610 and the flip worm 620 can be directly connected or indirectly connected (for example, the flip drive 610 is connected to the flip worm 620 through multiple transmission teeth).

[0117] For a specific embodiment, please refer to Figure 11 The flip drive assembly 600 further includes a first transmission member. The output shaft of the flip drive assembly 610 is provided with a flip tooth 611, which is connected to the flip worm 620 via the first transmission member. The first transmission member includes at least two first transmission wheels 630 meshing in a first direction, each of which is rotatable around a second axis. The two first transmission wheels 630 are primary gears, or one of the two first transmission wheels 630 is a coaxial secondary gear, which can change the transmission ratio and increase the transmission speed.

[0118] Understandably, driven by the flipping drive 610, the flipping gear 611 drives each of the first transmission wheels 630 to rotate around the second axis, drives the flipping worm 620 to rotate around the second axis, meshes with the first flipping gear 303 to rotate around the second axis, and drives the flipping shell 300 to rotate around the second axis relative to the folding shell 100.

[0119] With the above configuration, the flip drive 610 and the flip worm 620 achieve transmission through the meshing and superposition of at least two stages of gears, which can change the output torque and output speed of the flip drive assembly 600 according to actual needs.

[0120] In the embodiments of this application, the dimensions of each first transmission wheel 630 may be completely different or not completely the same, so as to facilitate subsequent speed adjustment and torque adjustment.

[0121] For a specific embodiment, please refer to Figure 12The flip drive assembly 600 also includes a second transmission member. The output shaft of the flip drive assembly 610 is provided with a flip tooth 611. The flip tooth 611 and the flip worm 620 are connected by the second transmission member. The second transmission member includes a second transmission rod 641 and a second transmission wheel 642 fixedly connected to the second transmission rod 641. The second transmission wheel 642 meshes with the flip tooth 611, and the second transmission rod 641 meshes with the flip worm 620. The second transmission rod 641 extends along a first direction and can rotate around a first axis.

[0122] Understandably, driven by the flipping drive 610, the flipping gear 611 drives the second drive wheel 642 and the second drive rod 641 to rotate around the first axis. The second drive rod 641 drives the flipping worm 620 to rotate around the second axis, meshing with the first flipping gear 303 to rotate around the second axis, thereby causing the flipping outer shell 300 to rotate relative to the folding outer shell 100 around the second axis.

[0123] With the above configuration, the flipping drive 610 and the flipping worm 620 are connected by the second transmission rod 641 and the second transmission wheel 642 arranged vertically along the first direction, which can make full use of the space in the first direction (i.e., the height direction) and reduce the space occupied in the second direction (i.e., the length direction).

[0124] In the embodiments of this application, the second transmission member includes a second transmission rod 641 and a second transmission wheel 642 fixedly connected to the second transmission rod 641, and the number of the second transmission wheel 642 is not limited to one.

[0125] For more specific details, please refer to Figure 7 and Figure 3 The first reversing gear 303 is integrally formed on the inner wall of the first housing 310 and / or the inner wall of the second housing 320.

[0126] The above settings enable the flipping housing 300 of the flipping mechanism 20 to have good integrity and be easy to disassemble and assemble quickly.

[0127] In the embodiments of this application, the first flipping gear 303 can be integrally formed in a variety of ways, such as by casting or injection molding.

[0128] Please refer to Figure 9 The flipping mechanism 20 also includes a first detection component 700, which is disposed in the receiving groove 301 and is used to record the angle of rotation of the flipping shell 300 relative to the folding shell 100 about the second axis.

[0129] With the above settings, the first detection component 700 can record the angle of rotation of the flip-out housing 300 relative to the folding housing 100 around the second axis, and can obtain the user's habit of adjusting the rearview mirror up and down, so as to automatically open it to a suitable angle according to the user's usage habits.

[0130] In the embodiments of this application, the first detection component 700 is disposed in the receiving groove 301. The number of the first detection component 700 is not limited to one. When the number of the first detection component 700 is at least two, each first detection component 700 can be disposed in a different position to improve the accuracy of the detection structure.

[0131] For details, please refer to Figure 11 and Figure 8 The first detection component 700 includes a first potentiometer 710 and a first tooth 720 coaxially arranged. The folding housing 100 is also provided with a second flip gear 301b. The second flip gear 301b and the first flip gear 303 are spaced apart in a first direction, and the second flip gear 301b meshes with the first tooth 720. When the folding housing 300 rotates relative to the folding housing 100 about a second axis, the second flip gear 301b rotates relative to the first tooth 720 about the second axis. The first potentiometer 710 is used to record the angle of rotation of the second flip gear 301b relative to the first tooth 720 about the second axis.

[0132] It should be noted that the first potentiometer 710 and the first tooth 720 are coaxially arranged, that is, the central axis of the first potentiometer 710 and the central axis of the first tooth 720 are coincident.

[0133] With the above settings, the first potentiometer 710 can quickly record the angle of rotation of the flip-out housing 300 relative to the folding housing 100 around the second axis, and quickly obtain the user's habit of adjusting the rearview mirror up and down.

[0134] In the embodiments of this application, the first potentiometer 710 and the first tooth 720 are separate structures. The first potentiometer 710 and the first tooth 720 can be fixed in a variety of ways, such as by passing them through a connecting shaft, or by riveting or welding.

[0135] In an embodiment of this application, a second flip gear 301b is further provided inside the folding outer shell 100. The second flip gear 301b is spaced apart from the first flip gear 303 in the first direction, that is, the second flip gear 301b is fixed in the receiving groove 301 and there is a gap between it and the first flip gear 303 in the first direction. For example, the second flip gear 301b is located above the first flip gear 303. The second flip gear 301b can have various structural forms, as long as it has a toothed structure.

[0136] Please refer to Figure 11 and Figure 7 The folding mechanism 10 also includes a folding drive assembly 800. The folding housing 100 is provided with a first folding gear 106. The folding drive assembly 800 is connected to the first folding gear 106 in a transmission connection. Under the drive of the folding drive assembly 800, the first folding gear 106 remains stationary, driving the folding housing 100 to rotate relative to the vehicle body around a first axis, so that the folding housing 100 switches between a folded position and an unfolded position.

[0137] With the above settings, the folding drive assembly 800 and the first folding gear 106 work together to drive the folding shell 100 to rotate relative to the vehicle body around the first axis, which can smoothly realize the automatic folding and unfolding of the folding shell 100, thus improving the automation level of the folding device.

[0138] In the embodiments of this application, a first folding gear 106 is provided in the receiving groove 301. The first folding gear 106 is fixed in the receiving groove 301. The first folding gear 106 can have various structural forms, as long as it has a toothed structure.

[0139] In the embodiments of this application, the folding drive assembly 800 is connected to the first folding gear 106 via a transmission connection. The transmission connection can be a direct connection or an indirect connection (for example, the folding drive assembly 800 is connected to the first folding gear 106 via multiple transmission teeth).

[0140] For details, please refer to Figure 9 and Figure 10 The folding drive assembly 800 includes a folding drive component 810 and a folding worm gear 820. A second holding part 107 is provided inside the folding housing 100. The folding worm gear 820 is rotatably disposed in the second holding part 107. The folding drive component 810 is connected to the folding worm gear 820, and the folding worm gear 820 meshes with the first folding gear 106. Under the drive of the folding drive component 810, the first folding gear 106 does not rotate, and the folding worm gear 820 is driven to rotate around the first axis, thereby causing the folding housing 100 to rotate relative to the vehicle body around the first axis.

[0141] With the above configuration, the folding drive 810, folding worm gear 820 and first folding gear 106 work together to drive the folding outer shell 100 to rotate around the second axis relative to the folding outer shell 100, which facilitates the smooth automatic rotation of the folding outer shell 100.

[0142] In the embodiments of this application, the folding worm gear 820 is rotatably disposed on the second holding portion 107, which can be achieved in various ways. For example, two spaced-apart second holding portions 107 are provided inside the folding housing 100, each second holding portion 107 having a slot. The folding worm gear 820 includes a rod body and a threaded portion disposed outside the rod body. The threaded portion is located in the middle region of the rod body, and both ends of the rod body are respectively held in the slots of the two second holding portions 107. The threaded portion meshes with the first folding gear 106.

[0143] In the embodiments of this application, the folding drive 810 is connected to the folding worm gear 820. The folding drive 810 and the folding worm gear 820 can be directly connected or indirectly connected (for example, the folding drive 810 is connected to the folding worm gear 820 through multiple transmission teeth).

[0144] For a specific embodiment, please refer to Figure 11 The folding drive assembly 800 also includes a third transmission component. The output shaft of the folding drive assembly 810 is provided with a folding gear 811, which is connected to the folding worm gear 820 via the third transmission component. The third transmission component includes at least two third transmission wheels 830 meshing in a first direction, each of which is rotatable about a second axis. The two third transmission wheels 830 are either primary gears or one of them is a secondary gear, which can change the transmission ratio and increase the transmission speed.

[0145] Understandably, driven by the folding drive unit 810, the folding gear 811 drives each third transmission wheel 830 to rotate around the second axis, and drives the folding worm gear 820 to rotate around the first axis, thereby causing the folding shell 100 to rotate relative to the vehicle body around the first axis.

[0146] With the above configuration, the folding drive component 810 and the folding worm gear 820 achieve transmission through the meshing and superposition of at least two stages of gears, which can change the output torque and output speed of the folding drive component 800 according to actual needs.

[0147] In the embodiments of this application, the dimensions of each third transmission wheel 830 may be completely different or not completely the same, so as to facilitate subsequent speed adjustment and torque adjustment.

[0148] For a specific embodiment, please refer to Figure 12The folding drive assembly 800 also includes a fourth transmission component. The output shaft of the folding drive assembly 810 is provided with a folding tooth 811. The folding tooth 811 and the folding worm 820 are connected by the fourth transmission component. The fourth transmission component includes a fourth transmission rod 841 and a fourth transmission wheel 842 fixedly connected to the fourth transmission rod 841. The fourth transmission wheel 842 meshes with the folding tooth 811, and the fourth transmission rod 841 meshes with the folding worm 820. The fourth transmission rod 841 extends along a first direction and is rotatable around a first axis.

[0149] Understandably, driven by the folding drive unit 810, the folding gear 811 drives the fourth drive wheel 842 and the fourth drive rod 841 to rotate around the first axis, and the fourth drive rod 841 drives the folding worm gear 820 to rotate around the second axis, thereby causing the folding shell 100 to rotate relative to the vehicle body around the first axis.

[0150] With the above configuration, the folding drive unit 810 and the folding worm gear 820 are connected by the fourth transmission rod 841 and the fourth transmission wheel 842 arranged vertically along the first direction, which can make full use of the space in the first direction (i.e., the height direction) and reduce the space occupied in the second direction (i.e., the length direction).

[0151] In the embodiments of this application, the fourth transmission member includes a fourth transmission rod 841 and a fourth transmission wheel 842 fixedly connected to the fourth transmission rod 841. The number of fourth transmission wheels 842 is not limited to one.

[0152] Please refer to Figure 11 and Figure 13 The folding mechanism 10 also includes a locking member 910, which is disposed inside the folding housing 100 and arranged side by side with the first folding gear 106 along a first direction. When the folding drive member 810 is running, the locking member 910 and the first folding gear 106 engage with each other in the first direction, so that the locking member 910 restricts the first folding gear 106 from rotating around the first axis. The folding worm gear 820 rotates relative to the first folding gear 106 around the first axis, driving the folding housing 100 to rotate relative to the vehicle body around the first axis. When the folding drive member 810 is not running, and the folding housing 100 is driven to rotate relative to the vehicle body around the first axis by external force, the locking member 910 and the first folding gear 106 separate from each other in the first direction. The first folding gear 106 can rotate around the first axis and drive the locking member 910 to rotate around the first axis.

[0153] It is understood that when the folding drive 810 is running, the locking member 910 engages with the first folding gear 106 in the first direction, so that the locking member 910 restricts the first folding gear 106 from rotating around the first axis, preventing the first folding gear 106 from rotating. The folding worm gear 820 rotates relative to the first folding gear 106 around the first axis, driving the folding shell 100 to rotate relative to the vehicle body around the first axis, so as to realize the electric folding and unfolding of the folding shell 100.

[0154] When the folding drive 810 is not in operation, and the folding shell 100 is driven by external force to rotate relative to the vehicle body around the first axis, the locking member 910 and the first folding gear 106 separate from each other in the first direction. The first folding gear 106 can rotate around the first axis and drive the locking member 910 to rotate around the first axis, so as to avoid the first folding gear 106 being unable to rotate and thus interfering with the rotation of the folding shell 100, so as to realize the manual folding and unfolding of the folding shell 100.

[0155] With the above configuration, by engaging and disengaging the locking member 910 and the first folding gear 106, the electric folding and unfolding of the folding shell 100 and the manual folding and unfolding can be realized simultaneously, making the folding device more practical.

[0156] In the embodiments of this application, the locking member 910 is disposed inside the folding housing 100 and is arranged side by side with the first folding gear 106 along the first direction. The central axis of the locking member 910 and the center of the first folding gear 106 may be coincident.

[0157] For details, please refer to Figure 11 and Figure 13 The locking member 910 has a first locking part 911 on the side facing the first folding gear 106, and the first folding gear 106 has a second locking part 106a on the side facing the locking member 910. When the folding drive member 810 is running, the first locking part 911 and the second locking part 106a are engaged in the first direction so that the locking member 910 and the first folding gear 106 are engaged with each other. When the folding drive member 810 is not running and the folding shell 100 is driven by an external force to rotate relative to the vehicle body around the first axis, the first locking part 911 and the second locking part 106a push against each other so that the locking member 910 and the first folding gear 106 are separated from each other in the first direction.

[0158] It should be noted that, since the locking member 910 and the first folding gear 106 are arranged side by side along the first direction, and the locking member 910 is located above the first folding gear 106, the side of the locking member 910 facing the first folding gear 106 is also the bottom side of the locking member 910, and the side of the first folding gear 106 facing the locking member 910 is also the top side of the first folding gear 106.

[0159] Here, when the folding drive 810 is running, the first locking part 911 and the second locking part 106a are engaged in the first direction so that the locking part 910 and the first folding gear 106 are engaged with each other. At this time, the locking part 910 is located in the first position. When the folding drive 810 is not running and the folding shell 100 is driven by an external force to rotate relative to the vehicle body around the first axis, the first locking part 911 and the second locking part 106a push against each other so that the locking part 910 and the first folding gear 106 are separated from each other in the first direction. At this time, the locking part 910 is located in the second position above the first position.

[0160] With the above configuration, the engagement and disengagement between the locking member 910 and the first folding gear 106 can be achieved through the cooperation between the first locking part 911 and the second locking part 106a.

[0161] For more specific details, please refer to Figure 11 and Figure 13 The first locking part 911 is a toothed protrusion arranged circumferentially along the locking member 910, and the second locking part 106a is a toothed groove arranged circumferentially along the first folding gear 106.

[0162] With the above arrangement, the contact area between the first locking part 911 and the second locking part 106a can be maximized within a limited space, which is beneficial for the subsequent engagement and separation of the first locking part 911 and the second locking part 106a.

[0163] In the embodiments of this application, the number of the first locking part 911 and the second locking part 106a is not limited to one. When the number of the first locking part 911 and the second locking part 106a is at least two, each first locking part 911 can be a concentric circle structure with different diameters. That is, each first locking part 911 is sequentially nested from the inside to the outside with a gap. Each second locking part 106a is correspondingly set with each first locking part 911.

[0164] Further, please refer to Figure 11 and Figure 13 The folding mechanism 10 also includes a second elastic element 920, one end of which is fixed to the folding column 200 and the other end is fixed to the first folding gear 106, and is used to restrict the first folding gear 106 from rotating around the first axis.

[0165] It is understood that when the folding drive 810 is running, the locking member 910 engages with the first folding gear 106 in the first direction, so that the locking member 910 restricts the first folding gear 106 from rotating around the first axis, preventing the first folding gear 106 from rotating. The folding worm gear 820 rotates relative to the first folding gear 106 around the first axis, driving the folding shell 100 to rotate relative to the vehicle body around the first axis, so as to realize the electric folding and unfolding of the folding shell 100.

[0166] With the above settings, the second elastic element 920 can be used to press the first folding gear 106, restricting the first folding gear 106 from rotating around the first axis.

[0167] In the embodiments of this application, the second elastic element 920 is a spring, and the number of the second elastic element 920 is not limited to one, that is, the number of the second elastic element 920 can be at least two.

[0168] Furthermore, please refer to Figure 13 The locking member 910 is provided with a clearance groove 912 for the folding column 200 to pass through in the first direction. The inner circumference of the clearance groove 912 is provided with a first limiting part, and the outer circumference of the folding column 200 is provided with a second limiting part 201. The second limiting part 201 cooperates with the first limiting part to limit the movement range of the locking member 910 in the first direction. One of the first limiting part and the second limiting part 201 is a limiting groove, and the other of the first limiting part and the second limiting part 201 is a limiting protrusion.

[0169] It should be noted that when the folding drive 810 is not in operation and the folding shell 100 is rotated relative to the vehicle body around the first axis by external force, the first locking part 911 and the second locking part 106a push against each other so that the locking part 910 and the first folding gear 106 separate from each other in the first direction. At this time, the locking part 910 moves from the first position to the second position in the first direction, and the limiting protrusion can move in the limiting groove to limit the range of movement of the locking part 910 in the first direction.

[0170] With the above settings, when the folding shell 100 is manually folded and unfolded, the limiting protrusion can move within the limiting groove to limit the movement range of the locking member 910 in the first direction, so as to prevent the locking member 910 from moving too much and damaging the folding shell 100.

[0171] In the embodiments of this application, the shapes of the limiting protrusion and the limiting groove are similarly configured, that is, the shapes of the limiting protrusion and the limiting groove are matched to make the limiting protrusion and the limiting groove fit more closely. For example, the limiting protrusion is strip-shaped, and the limiting groove is also strip-shaped.

[0172] In the embodiments of this application, the number of limiting protrusions and limiting grooves is not limited to one. When the number of limiting protrusions is at least two, the limiting grooves and limiting protrusions are set in a one-to-one correspondence.

[0173] Please refer to Figure 11 The folding mechanism 10 also includes a second detection component 930, which is disposed inside the folding housing 100 and is used to record the angle of rotation of the locking member 910 around the first axis.

[0174] With the above settings, the second detection component 930 can record the angle of rotation of the locking component 910 around the first axis, and can obtain the user's manual folding and unfolding angle habits of the rearview mirror, so as to automatically open it to a suitable angle according to the user's usage habits in the future.

[0175] In the embodiments of this application, the second detection component 930 is disposed inside the folding housing 100. The number of the second detection component 930 is not limited to one. When the number of the second detection component 930 is at least two, each second detection component 930 can be disposed in a different position to improve the accuracy of the detection structure.

[0176] For details, please refer to Figure 11 and Figure 13 The second detection component 930 includes a second potentiometer 931 and a second tooth 932 coaxially arranged. The outer periphery of the locking member 910 is provided with a third tooth 913, which meshes with the second tooth 932. When the folding drive member 810 is not running, and the folding shell 100 is driven by external force to rotate relative to the vehicle body around the first axis, the first folding gear 106 can rotate around the first axis and drive the locking member 910 to rotate around the first axis. The second potentiometer 931 is used to record the angle of rotation of the locking member 910 around the first axis.

[0177] It should be noted that the second potentiometer 931 and the second tooth 932 are coaxially arranged, that is, the central axis of the second potentiometer 931 and the central axis of the second tooth 932 are coincident.

[0178] With the above settings, the second potentiometer 931 can quickly record the angle of rotation of the locking member 910 around the first axis, and quickly obtain the user's manual folding and unfolding angle habits of the rearview mirror.

[0179] In the embodiments of this application, the second potentiometer 931 and the second tooth 932 are separate structures. The second potentiometer 931 and the second tooth 932 can be fixed in a variety of ways, such as by passing them through a connecting shaft, or by riveting or welding.

[0180] In the embodiments of this application, the outer periphery of the locking member 910 is provided with a third tooth 913. The locking member 910 and the third tooth 913 are an integral structure. The locking member 910 and the third tooth 913 can be integrally formed by injection molding, casting or other methods.

[0181] Please refer to Figure 8 The folding housing 100 includes a first portion 110 and a second portion 120, which overlap each other and together define a receiving space for accommodating the folding drive assembly 800.

[0182] With the above configuration, the folding housing 100 includes two overlapping parts, which facilitates the subsequent disassembly and assembly of the folding housing 100 for maintenance or replacement of components within the housing space.

[0183] In embodiments of this application, the first portion 110 and the second portion 120 can both be hollow structures with an opening on one side, with the opening side of the first portion 110 covering the opening side of the second portion 120; alternatively, the second portion 120 can be a hollow structure with an opening at one end, and the first portion 110 can be a plate-like structure, with the first portion 110 covering the opening side of the second portion 120, so that the first portion 110 and the second portion 120 together define an accommodating space. The first portion 110 and the second portion 120 can be of various shapes, such as cylinders, cuboids, etc.

[0184] In the embodiments of this application, the first part 110 and the second part 120 can be fitted together in a variety of ways, such as by snap-fitting, magnetic attraction, etc.

[0185] For details, please refer to Figure 8 and Figure 7 Both the first part 110 and the second part 120 are provided with slots 105 for the folding column 200 to pass through. The slots 105 are cylindrical grooves that pass through the first part 110 and the second part 120 along the first direction.

[0186] It should be noted that the folding column 200 is a cylindrical structure extending along the first direction. Correspondingly, the slot 105 is a cylindrical groove that passes through the first part 110 and the second part 120 along the first direction, so that the slot 105 can be adapted to the folding column 200.

[0187] With the above settings, the folding column 200 can be smoothly inserted into the folding shell 100 and connected to the vehicle body without affecting the internal component settings of the folding shell 100, thus improving the space utilization of the folding shell 100.

[0188] Please refer to Figure 1 In one embodiment, the rearview device includes the folding device and the rearview mirror described above, with the rearview mirror disposed on the folding device.

[0189] It should be noted that the aforementioned rearview device also includes components such as a protective housing. The protective housing covers the folding device to isolate the folding device from the outside air and prevent it from getting damp or damaged.

[0190] The aforementioned rearview device allows for the folding and unfolding of the rearview mirror by rotating the folding housing 100 relative to the vehicle body around a first axis, and for adjusting the angle of the rearview mirror by rotating the flip housing 300 relative to the folding housing 100 around a second axis. The flip housing 300 includes a first housing 310 and a second housing 320 connected together. The first housing 310 and the second housing 320 form a receiving groove 301 that surrounds one end of the folding housing 100 along a second direction. The receiving groove 301 is arranged to avoid the folding column 200 along the second direction, allowing the flip housing 300 to be rotatably mounted on the folding housing 100 around the second axis. At the same time, the structure between the flip housing 300 and the folding column 200 will not interfere with each other and will not affect the assembly between the folding column 200 and the vehicle body after it passes through the folding housing 100. The structural design is reasonable and compact.

[0191] Please refer to Figure 1 In one embodiment, the vehicle includes the aforementioned rearview device.

[0192] The aforementioned vehicle can fold and unfold the rearview mirror by rotating the folding shell 100 relative to the vehicle body around the first axis, and can adjust the angle of the rearview mirror by rotating the flip shell 300 relative to the folding shell 100 around the second axis. The adjustment is convenient and the structures do not interfere with each other. The structural design is reasonable and compact.

[0193] In the embodiments of this application, the number of rear-view devices is not limited to one; for example, the number of rear-view devices is two, with the two rear-view devices respectively located on the left and right sides of the vehicle body.

[0194] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0195] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A folding device, connected to a vehicle body, characterized in that, The folding device includes: A folding mechanism includes a folding shell and a folding column, the folding column passing through the folding shell and connected to the vehicle body, the folding shell being rotatable relative to the vehicle body about a first axis, the first axis being the axis of the folding column; The flipping mechanism includes a flipping housing connected to the folding housing, the flipping housing being used to mount a rearview mirror, and the flipping housing being rotatable relative to the folding housing about a second axis, the second axis being set at an angle to the first axis. The folding outer shell includes a first shell and a second shell connected together. The first shell and the second shell are located on opposite sides of the folding outer shell along a first direction, which is parallel to the direction of the first axis. A receiving groove is formed between the first shell and the second shell. The receiving groove is wrapped around one end of the folding outer shell along a second direction. The receiving groove is disposed away from the folding column along the second direction, which is parallel to the direction of the second axis. The flipping mechanism further includes a flipping guide post, which is spaced apart from the folding column in the second direction; The flipping guide post passes through the receiving groove and extends into the folding housing, and the flipping housing is rotatable about the second axis relative to the flipping guide post; The flipping guide post includes an arc-shaped guide platform and a connecting post. The arc-shaped guide platform has a first arc surface on one side along the first direction. The connecting post protrudes from the first arc surface. The flipping housing has a second arc surface on one side facing the arc-shaped guide platform. When the flipping housing can rotate relative to the flipping guide post around the second axis, the second arc surface guides and engages with the first arc surface.

2. The folding device according to claim 1, characterized in that, The flip-out housing further includes a third housing, one end of which is connected to the wall of the receiving groove along the second direction, and the other end of which is hinged to the folding housing along the second direction, so that the third housing can rotate about the second axis relative to the folding housing.

3. The folding device according to claim 2, characterized in that, The third housing is constructed as an annular structure surrounding the outer periphery of the folding outer shell and having a clearance portion, wherein the clearance portion extends through the annular structure along the first direction, so that the folding column and at least a portion of the folding outer shell can be exposed through the clearance portion.

4. The folding device according to claim 2, characterized in that, The third housing is provided with a first mounting hole at the other end along the second direction, and the folding outer shell is provided with a second mounting hole. The hinge shaft passes through the first mounting hole and the second mounting hole so that the third housing can rotate about the second axis relative to the folding outer shell.

5. The folding device according to claim 1, characterized in that, The first housing and the second housing are an integral structure.

6. The folding device according to claim 1, characterized in that, The folding outer shell is provided with a first guide at one end along the second direction, and the receiving groove is provided with a second guide that guides and cooperates with the first guide. One of the first guide member and the second guide member is an arc-shaped guide rail, and the other of the first guide member and the second guide member is an arc-shaped guide groove.

7. The folding device according to claim 6, characterized in that, The second guide is disposed on the inner wall of the first housing and / or the inner wall of the second housing.

8. The folding device according to claim 1, characterized in that, The connecting post passes through the receiving groove and extends into the folding housing; The curvature of the second arc surface is equal to that of the first arc surface.

9. The folding device according to claim 1, characterized in that, The folding outer shell also has a third arc surface on the side facing the second arc surface, and the curvature of the third arc surface is equal to that of the first arc surface; The flipping mechanism further includes a first elastic element. The end of the connecting post away from the first arc surface is provided with a first retaining ring. The first elastic element is sleeved on the outside of the connecting post and is limited to the first retaining ring and the third arc surface.

10. The folding device according to claim 1, characterized in that, The flipping mechanism further includes a flipping drive assembly. A first flipping gear is provided inside the flipping housing. The first flipping gear passes through the receiving groove and extends into the folding housing. The flipping drive assembly is located inside the folding housing and is connected to the first flipping gear in a driving connection. Driven by the flip drive assembly, the first flip gear rotates, causing the flip shell to rotate relative to the folding shell around the second axis.

11. The folding device according to claim 10, characterized in that, The flip drive assembly includes a flip drive component and a flip worm gear. The folding housing is provided with a first holding part. The flip worm gear is rotatably disposed in the first holding part. The flip drive component is connected to the flip worm gear. The flip worm gear meshes with the first flip gear. Driven by the flipping drive, the flipping worm rotates, meshing with the first flipping gear to rotate around the second axis, thereby causing the flipping outer shell to rotate relative to the folding outer shell around the second axis.

12. The folding device according to claim 11, characterized in that, The flip drive assembly further includes a first transmission component, the output shaft of the flip drive component is provided with a flip tooth, and the flip tooth is connected to the flip worm gear through the first transmission component; The first transmission component includes at least two first transmission wheels meshing in the first direction, each of the first transmission wheels being rotatable about the second axis, and the two first transmission wheels being a primary gear, or one of the two first transmission wheels being a secondary gear.

13. The folding device according to claim 11, characterized in that, The flip drive assembly further includes a second transmission component. The output shaft of the flip drive component is provided with a flip tooth, and the flip tooth is connected to the flip worm gear through the second transmission component. The second transmission component includes a second transmission rod and a second transmission wheel fixedly connected to the second transmission rod. The second transmission wheel meshes with the flipping tooth, and the second transmission rod meshes with the flipping worm. The second transmission rod extends along the first direction and is rotatable around the first axis.

14. The folding device according to claim 11, characterized in that, The first flipping gear is integrally formed on the inner wall of the first housing and / or the inner wall of the second housing.

15. The folding device according to claim 11, characterized in that, The flipping mechanism further includes a first detection component, which is disposed in the receiving groove and is used to record the angle of rotation of the flipping shell relative to the folding shell around the second axis.

16. The folding device according to claim 15, characterized in that, The first detection component includes a first potentiometer and a first toothed part arranged coaxially. The folding housing is also provided with a second flip gear. The second flip gear and the first flip gear are spaced apart in the first direction, and the second flip gear meshes with the first toothed part. When the flip-out housing rotates about the second axis relative to the folded housing, the second flip gear rotates about the second axis relative to the first tooth, and the first potentiometer is used to record the angle of rotation of the second flip gear about the second axis relative to the first tooth.

17. The folding device according to claim 1, characterized in that, The folding mechanism further includes a folding drive assembly, and a first folding gear is provided inside the folding housing. The folding drive assembly is connected to the first folding gear in a transmission manner. Driven by the folding drive assembly, the first folding gear remains stationary, and the folding shell can rotate relative to the vehicle body about the first axis to switch between a folded position and an unfolded position.

18. The folding device according to claim 17, characterized in that, The folding drive assembly includes a folding drive component and a folding worm gear. A second holding part is provided inside the folding housing. The folding worm gear is rotatably disposed in the second holding part. The folding drive component is connected to the folding worm gear, and the folding worm gear meshes with the first folding gear. Driven by the folding drive, the first folding gear does not rotate, but the folding worm rotates around the first axis, causing the folding shell to rotate relative to the vehicle body around the first axis.

19. The folding device according to claim 18, characterized in that, The folding drive assembly further includes a third transmission component. The output shaft of the folding drive component is provided with a folding tooth, and the folding tooth is connected to the folding worm gear through the third transmission component. The third transmission component includes at least two third transmission wheels meshing along the first direction. Each of the third transmission wheels is rotatable about the second axis. The two third transmission wheels are first-stage gears, or one of the two third transmission wheels is a second-stage gear.

20. The folding device according to claim 18, characterized in that, The folding drive assembly further includes a fourth transmission component. The output shaft of the folding drive component is provided with a folding tooth, and the folding tooth is connected to the folding worm gear through the fourth transmission component. The fourth transmission component includes a fourth transmission rod and a fourth transmission wheel fixedly connected to the fourth transmission rod. The fourth transmission wheel meshes with the folded tooth portion, and the fourth transmission rod meshes with the folded worm gear. The fourth transmission rod extends along the first direction and is capable of rotating around the first axis.

21. The folding device according to claim 18, characterized in that, The folding mechanism further includes a locking element, which is disposed inside the folding housing and arranged side by side with the first folding gear along the first direction; When the folding drive is running, the locking member engages with the first folding gear in the first direction, so that the locking member restricts the first folding gear from rotating about the first axis, and the folding worm rotates about the first axis relative to the first folding gear, thereby driving the folding housing to rotate about the first axis relative to the vehicle body. When the folding drive is not in operation, and the folding shell is rotated relative to the vehicle body around the first axis by an external force, the locking member and the first folding gear are separated from each other in the first direction. The first folding gear can rotate around the first axis and drive the locking member to rotate around the first axis.

22. The folding device according to claim 21, characterized in that, The locking member has a first locking part on the side facing the first folding gear, and the first folding gear has a second locking part on the side facing the locking member; When the folding drive is running, the first locking part and the second locking part are inserted and engaged in the first direction so that the locking part and the first folding gear engage with each other. When the folding drive is not in operation and the folding shell is rotated relative to the vehicle body about the first axis by an external force, the first locking part and the second locking part push against each other so that the locking part and the first folding gear are separated from each other in the first direction.

23. The folding device according to claim 22, characterized in that, The first locking part is a toothed protrusion circumferentially arranged along the locking member, and the second locking part is a toothed groove circumferentially arranged along the first folding gear.

24. The folding device according to claim 21, characterized in that, The folding mechanism further includes a second elastic element, one end of which is fixed to the folding column and the other end of which is fixed to the first folding gear, and is used to restrict the first folding gear from rotating around the first axis.

25. The folding device according to claim 21, characterized in that, The locking member is provided with a clearance groove for the folding column to pass through along the first direction. The inner circumference of the clearance groove is provided with a first limiting part, and the outer circumference of the folding column is provided with a second limiting part. The second limiting part cooperates with the first limiting part to limit the movement range of the locking member in the first direction. One of the first limiting part and the second limiting part is a limiting groove, and the other of the first limiting part and the second limiting part is a limiting protrusion.

26. The folding device according to claim 21, characterized in that, The folding mechanism further includes a second detection component, which is disposed inside the folding housing and is used to record the angle of rotation of the locking member around the first axis.

27. The folding device according to claim 26, characterized in that, The second detection component includes a second potentiometer and a second tooth arranged coaxially, and the locking member has a third tooth on its outer periphery, which meshes with the second tooth; When the folding drive is not in operation, and the folding shell is rotated relative to the vehicle body around the first axis by an external force, the first folding gear can rotate around the first axis and drive the locking member to rotate around the first axis. The second potentiometer is used to record the angle of rotation of the locking member around the first axis.

28. The folding device according to claim 19, characterized in that, The folding housing includes a first part and a second part, the first part and the second part overlapping each other, and the first part and the second part together define a receiving space for accommodating the folding drive assembly.

29. The folding device according to claim 28, characterized in that, Both the first part and the second part are provided with slots for the folded column to pass through, and the slots are cylindrical grooves that pass through the first part and the second part along the first direction.

30. A rear-view device, characterized in that, Includes a folding device and a rearview mirror as described in any one of claims 1-29, wherein the rearview mirror is disposed on the folding device.

31. A vehicle, characterized in that, Includes the rear-view device as described in claim 30.

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