Reversing mechanism, rearview device and vehicle

Abstract

The application belongs to the technical field of rearview devices, and particularly relates to a turnover mechanism, a rearview device and a vehicle. The turnover mechanism comprises a turnover driving assembly, a turnover piece and a connecting piece. The connecting piece can pass through the turnover piece and is connected with a main body part. The connecting piece is relatively fixed with the main body part. When the main body part rotates around a first axis, the turnover piece is relatively fixed with the main body part. A transmission piece is arranged on the turnover piece. The turnover driving assembly is in transmission connection with the transmission piece. The turnover driving assembly can drive the transmission piece to rotate around a second axis, so that the turnover piece can rotate relative to the connecting piece and the main body part. The connecting piece ensures that the turnover driving assembly and the transmission piece are always in transmission connection. When it is necessary to adjust the turnover piece, the turnover driving assembly drives the transmission piece to rotate around the first axis. The transmission piece is subjected to a driving force in the circumferential direction when rotating, so that the jamming caused by the deviation of the force direction is avoided, and the failure that the shaft cannot rotate is reduced.

Description

Technical Field

[0001] This invention belongs to the field of rear-view equipment technology, and in particular relates to a flipping mechanism, a rear-view device, and a vehicle. Background Technology

[0002] Rearview cameras are primarily used by drivers to observe the area behind the vehicle. They typically feature a folding mechanism and a flipping mechanism. The folding mechanism allows the camera to be folded towards the vehicle, reducing the vehicle's width. The flipping mechanism allows the viewing angle of the camera to be adjusted.

[0003] In existing rearview cameras, the flip-up mechanism and the folding mechanism are rotatably connected. The flip-up mechanism is screwed onto a rotating shaft of the folding mechanism, and the rotation of the shaft drives the flip-up mechanism to move synchronously. This structure has a significant drawback: bumps during vehicle operation or vibrations from the engine can cause the screw connection to loosen. As a result, the flip-up mechanism may wobble or even fail to rotate with the shaft when it rotates, indicating poor connection stability. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a flipping mechanism, a rearview device and a vehicle, addressing the issue of poor connection stability in existing flipping mechanisms.

[0005] To solve the above-mentioned technical problems, on the one hand, embodiments of the present invention provide a flipping mechanism suitable for installation on the main body of a rearview device, the flipping mechanism including a flipping drive assembly, a flipping component, and a connecting component;

[0006] The connector can pass through the flipper and connect to the main body. The connector is fixed relative to the main body. When the main body rotates around the first axis, the flipper is fixed relative to the main body.

[0007] The flipping component is provided with a transmission component, and the flipping drive assembly is connected to the transmission component. The flipping drive assembly can drive the transmission component to rotate around the second axis, so that the flipping component can rotate relative to the connecting component and the main body. The first axis intersects the second axis.

[0008] Optionally, the connector includes a connecting part and a supporting part. One end of the connecting part is used to connect to the main body part, and the supporting part is connected to the end of the connecting part away from the main body part. The supporting part is used to support the flipping member, and the supporting part and the flipping member can rotate relative to each other.

[0009] Optionally, the flipping component is provided with a first receiving cavity and a connecting hole, the connecting hole communicating with the first receiving cavity, and one end of the main body portion along the extension direction of the first axis is disposed in the first receiving cavity;

[0010] The connecting part passes through the connecting hole and is connected to the main body, and the connecting part and the connecting hole are clearance-fitted.

[0011] Optionally, the support portion is provided with a first arc-shaped surface, and the flipping component is provided with a second arc-shaped surface, wherein the first arc-shaped surface can fit into the second arc-shaped surface;

[0012] The central axis of the first arcuate surface coincides with the central axis of the second arcuate surface, so that when the flipping drive assembly drives the flipping member to rotate, the flipping member can rotate relative to the support portion.

[0013] Optionally, the flipping component is provided with a second receiving cavity, the connecting hole communicates with the second receiving cavity, and the support portion is disposed in the second receiving cavity;

[0014] The second arc-shaped surface is the inner wall surface of the second receiving cavity.

[0015] Optionally, the support includes an arc-shaped component, a first connecting plate, and a second connecting plate, both of which are connected to the arc-shaped component, and are spaced apart along the central axis of the arc-shaped component.

[0016] The first arc-shaped surface is the outer surface of the arc-shaped component.

[0017] Optionally, the support portion is provided with an arc-shaped protrusion, the flipping member is provided with an arc-shaped groove, the arc-shaped protrusion is disposed in the arc-shaped groove, the first arc-shaped surface is disposed in the arc-shaped protrusion, and the second arc-shaped surface is disposed in the arc-shaped groove;

[0018] or,

[0019] The support portion is provided with an arc-shaped groove, and the flipping component is provided with an arc-shaped protrusion. The arc-shaped protrusion is disposed in the arc-shaped groove, the first arc-shaped surface is disposed in the arc-shaped groove, and the second arc-shaped surface is disposed in the arc-shaped protrusion.

[0020] Optionally, the flipping mechanism further includes a first detection gear and a flipping potentiometer, wherein the flipping potentiometer is mounted on the main body and the first detection gear is mounted on the flipping potentiometer;

[0021] The flipping component is provided with a meshing component, which is located in the first receiving cavity, and the first detection gear meshes with the meshing component.

[0022] Optionally, a second elastic element is sleeved on the outside of the connecting part, the second elastic element being used to provide pre-tightening force for the connection between the flipping part and the main body part.

[0023] Optionally, a rotating connecting plate is provided on the side of the flipping member away from the connecting member, and the rotating connecting plate is rotatably connected to the main body.

[0024] Optionally, the flip drive assembly includes a flip drive component and a first worm gear, the first worm gear being disposed between the output end of the flip drive component and the transmission component, the transmission component being provided with a first meshing tooth, and the first worm gear meshing with the transmission component;

[0025] The flipping drive can drive the first worm to rotate, thereby causing the transmission component to rotate around the second axis.

[0026] Optionally, the transmission component is a transmission gear, and the central axis of the transmission gear is the second axis.

[0027] Optionally, the flipping drive assembly further includes a first gear, a second gear, and a second worm, wherein the central axis of the first gear coincides with the central axis of the first worm;

[0028] The second worm gear is connected to the output end of the flipping drive component, and the second worm gear meshes with the second gear. The first gear is connected to the second gear in a transmission connection.

[0029] Optionally, the second gear includes a first sub-gear and a second sub-gear, the first sub-gear and the second sub-gear are coaxially connected, and the tooth pitch of the first sub-gear is different from that of the second sub-gear;

[0030] The first sub-gear meshes with the first gear, and the second sub-gear meshes with the second worm.

[0031] Optionally, the flip drive assembly further includes a fifth worm gear, the central axis of which coincides with the central axis of the second gear, and the fifth worm gear meshes with the first gear.

[0032] On the other hand, embodiments of the present invention provide a rearview device, including a main body and a flipping mechanism as described in any of the preceding claims. The main body is adapted to be connected to a vehicle body. The main body includes a housing and a folding mechanism. The folding mechanism and the flipping drive assembly are disposed within the housing. The folding mechanism is rotatable about a first axis.

[0033] Optionally, the folding mechanism includes a rotating shaft assembly, which includes a folding column, a first kit, and a second kit. The folding column passes through the housing and is connected to the vehicle body, and the first axis coincides with the central axis of the folding column.

[0034] The first kit and the second kit are sleeved on the outside of the folding column. The folding column and the first kit are fixed relative to each other in the axial direction of the folding column, and the folding column and the second kit are fixed relative to each other in the circumferential direction of the folding column.

[0035] The first kit and the second kit have a separated state and an engaged state. In the separated state, the first kit and the second kit can rotate relative to each other, and the second kit can move relative to the folding column along the axial direction of the folding column. In the engaged state, the first kit, the second kit, and the folding column are fixed relative to each other, and the main body can rotate relative to the rotating shaft assembly.

[0036] Optionally, the first kit is provided with a plurality of first card slots and a plurality of first card blocks, the plurality of first card slots and the plurality of first card blocks being alternately arranged along the inner peripheral surface of the first kit; the second kit is provided with a plurality of second card slots and a plurality of second card blocks, the plurality of second card slots and the plurality of second card blocks being alternately arranged along the inner peripheral surface of the second kit.

[0037] In the engaged state, the first snap-fit ​​block is located in the second snap-fit ​​groove, and the second snap-fit ​​block is located in the first snap-fit ​​groove; in the disengaged state, the first snap-fit ​​block and the second snap-fit ​​block abut against each other.

[0038] Optionally, the second kit is provided with a limiting member that protrudes toward the central axis of the second kit;

[0039] The folded column is provided with a limiting groove, and the limiting member is disposed in the limiting groove. The limiting member can move along the limiting groove in the axial direction of the folded column.

[0040] Optionally, the folding mechanism further includes a folding drive assembly, the output end of which is connected to the first kit. The folding drive assembly is capable of driving the folding mechanism to rotate around the rotation axis assembly, and the first kit and the second kit remain engaged.

[0041] When the folding drive component stops driving and the folding mechanism is rotated, the first kit and the second kit switch between a separated state and an engaged state.

[0042] Optionally, the rotating shaft assembly further includes a first elastic element, which is sleeved on the outside of the folding column and is located on the side of the second assembly away from the first assembly.

[0043] When switching from the engaged state to the disengaged state, the second component moves away from the first component along the axial direction of the folded column and presses against the first elastic element; when switching from the disengaged state to the engaged state, the elastic force generated by the first elastic element can push the second component closer to the first component along the axial direction of the folded column.

[0044] Optionally, the folding drive assembly includes a folding drive component and a third worm gear, the third worm gear being disposed between the output end of the folding drive component and the first kit, the outer peripheral surface of the first kit having a second meshing tooth, and the third worm gear meshing with the first kit;

[0045] The folding drive is used to drive the third worm gear to rotate, so that the third worm gear rotates around the first kit, thereby causing the folding mechanism to rotate around the rotating shaft assembly.

[0046] Optionally, the folding drive assembly further includes a third gear, a fourth gear, and a fourth worm gear, wherein the central axis of the third gear coincides with the central axis of the third worm gear;

[0047] The fourth worm gear is connected to the output end of the folding drive component, the fourth worm gear meshes with the fourth gear, and the third gear is connected to the fourth gear in a transmission connection.

[0048] Optionally, the fourth gear includes a third sub-gear and a fourth sub-gear, the third sub-gear and the fourth sub-gear are coaxially connected, and the tooth pitch of the third sub-gear is different from that of the fourth sub-gear;

[0049] The third sub-gear meshes with the third gear, and the fourth sub-gear meshes with the fourth worm.

[0050] Optionally, the folding drive assembly further includes a sixth worm gear, the central axis of which coincides with the central axis of the fourth gear, and the sixth worm gear meshes with the third gear.

[0051] In another aspect, embodiments of the present invention provide a vehicle, including a body and a rearview device as described in any of the preceding claims, the rearview device being connected to the body.

[0052] In the flipping mechanism provided in this embodiment of the invention, the flipping component is connected to the main body through a connector to ensure that the flipping component will not detach from the main body, thereby ensuring that the flipping drive assembly and the transmission component always maintain a transmission connection. When the flipping component needs to be adjusted, the flipping drive assembly drives the transmission component to rotate around the first axis, and the flipping component connected to the transmission component rotates synchronously. When the transmission component rotates, it is subjected to a circumferential driving force, avoiding "jamming" caused by deviation of the force direction, thereby reducing the failure of not being able to rotate with the shaft. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the main body provided in an embodiment of the present invention;

[0054] Figure 2 This is an exploded view of the main body provided in an embodiment of the present invention;

[0055] Figure 3 This is a schematic diagram of a connector provided in an embodiment of the present invention;

[0056] Figure 4 This is a schematic diagram of the assembly of the connector on the main body according to an embodiment of the present invention;

[0057] Figure 5 This is a cross-sectional view of the main body provided in an embodiment of the present invention;

[0058] Figure 6 This is a schematic diagram of a flip drive component provided in an embodiment of the present invention. Figure 1 ;

[0059] Figure 7 This is a schematic diagram of a flip drive component provided in an embodiment of the present invention. Figure 2 ;

[0060] Figure 8 This is an exploded view of a folded column provided in an embodiment of the present invention;

[0061] Figure 9 This is a schematic diagram of the first kit and the second kit provided in an embodiment of the present invention;

[0062] Figure 10 This is a schematic diagram of the second kit provided in an embodiment of the present invention;

[0063] Figure 11 This is a schematic diagram of a folding drive component provided in an embodiment of the present invention. Figure 1 ;

[0064] Figure 12 This is a schematic diagram of a folding drive component provided in an embodiment of the present invention. Figure 2 ;

[0065] Figure 13This is a schematic diagram of the fifth and sixth worm gears provided in an embodiment of the present invention.

[0066] The reference numerals in the accompanying drawings are as follows:

[0067] 100. Main body; 10. Flipping mechanism; 20. Folding mechanism; 30. Shell;

[0068] 11. Flip drive assembly; 111. Flip drive component; 112. First worm gear; 113. Second worm gear; 114. First gear; 115. Second gear; 1151. First sub-gear; 1152. Second sub-gear; 116. Fifth worm gear; 12. Flip component; 121. Transmission component; 1211. First meshing tooth; 122. Meshing component; 123. First receiving cavity; 124. Connecting hole; 125. Second receiving cavity; 125a. Second arc-shaped surface; 126. Rotating connecting plate; 127. Pin shaft; 13. Connecting component; 131. Connecting part; 1311. First slot; 132. Support part; 1321. Arc-shaped component; 1321a. First arc-shaped surface; 1322. First connecting plate; 1323. Second connecting plate; 14. First detection gear; 15. Flip potentiometer; 16. Second elastic component;

[0069] 21. Folding column; 211. First column; 2111. Limiting groove; 2111a. First axial surface; 212. Second column; 2121. Second slot; 22. First assembly; 221. First engaging groove; 222. First engaging block; 222a. First abutting surface; 222b. First inclined surface; 223. Second meshing tooth; 23. Second assembly; 231. Second engaging groove; 232. Second engaging block; 232a. Second abutting surface; 232 b. Second inclined plane; 233. Limiting component; 233a. Second axial surface; 234. Third meshing tooth; 24. First elastic component; 25. Stop component; 26. Folding drive assembly; 261. Folding drive component; 262. Third worm gear; 263. Fourth worm gear; 264. Third gear; 265. Fourth gear; 2651. Third sub-gear; 2652. Fourth sub-gear; 266. Sixth worm gear; 27. Second detection gear; 28. Folding potentiometer;

[0070] 31. Upper shell; 32. Lower shell; 321. Connecting groove; 33. Snap-fit ​​component;

[0071] a', the first axis; b', the second axis. Detailed Implementation

[0072] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0073] like Figures 1 to 13 As shown, an embodiment of the present invention provides a flipping mechanism 10, which is suitable for installation on the main body 100 of a rearview device. The flipping mechanism 10 includes a flipping drive assembly 11, a flipping member 12, and a connecting member 13. The connecting member 13 can pass through the flipping member 12 and connect to the main body 100. The connecting member 13 is relatively fixed to the main body 100. When the main body 100 rotates around the first axis a', the flipping member 12 remains relatively fixed to the main body 100.

[0074] The flipping component 12 is provided with a transmission component 121. The flipping drive assembly 11 is connected to the transmission component 121. The flipping drive assembly 11 can drive the transmission component 121 to rotate around the second axis b' so that the flipping component 12 can rotate relative to the connecting component 13 and the main body 100. The first axis a' intersects the second axis b'.

[0075] In this embodiment, a connection is established between the flipping member 12 and the main body 100 through the connector 13, and the connector 13 and the main body 100 are relatively fixed, while the connector 13 and the flipping member 12 can rotate relative to each other. When the main body 100 rotates, the flipping member 12 can remain relatively stationary (without relative rotation) with the main body 100 through the connector 13, that is, the flipping member 12 rotates synchronously with the main body 100. In addition, the flipping drive assembly 11 is connected to the flipping member 12 through the transmission member 121 to form an independent drive link. When the flipping drive assembly 11 is activated, the transmission member 121 drives the flipping member 12 to rotate around the second axis b'. At this time, the flipping member 12 rotates relative to the connector 13 (and the main body 100), realizing the individual adjustment of the flipping member 12's own posture.

[0076] In this application, the flipping component 12 is connected to the main body 100 via the connector 13, ensuring that the flipping component 12 will not detach from the main body 100, thereby ensuring that the flipping drive assembly 11 and the transmission component 121 always maintain a transmission connection. When the flipping component 12 needs to be adjusted, the flipping drive assembly 11 drives the transmission component 121 to rotate around the first axis a', and the flipping component 12 connected to the transmission component 121 rotates synchronously. When the transmission component 121 rotates, it is subjected to a circumferential driving force, avoiding "jamming" caused by deviation of the force direction, thereby reducing the failure of not being able to rotate with the shaft.

[0077] In practical applications, the rearview device includes a lens mounted on a flip-up component 12. When the main body 100 rotates, the flip-up component 12 and the lens move together with the main body 100, enabling the rearview device to be folded and unfolded. When the flip-up component 12 rotates independently, the main body 100 remains stationary while the lens rotates accordingly, allowing the rearview device's viewing angle to be adjusted.

[0078] In one embodiment, such as Figure 5 As shown, the first axis a' is perpendicular to the second axis b', where the first axis a' is the height direction of the vehicle body and the second axis is the left and right direction of the vehicle body.

[0079] In one embodiment, such as Figure 3 As shown, the connector 13 includes a connecting part 131 and a supporting part 132. The connecting part 131 passes through the flipping part 12. One end of the connecting part 131 is used to connect to the main body part 100. The supporting part 132 is connected to the end of the connecting part 131 away from the main body part 100. The supporting part 132 is used to support the flipping part 12. The supporting part 132 and the flipping part 12 can rotate relative to each other.

[0080] One end of the connecting part 131 is directly rigidly fixed to the main body 100, ensuring that the connecting part 13 as a whole has no relative displacement with the main body 100. The support part 132 is connected to the other end of the connecting part 131 (the end away from the main body 100) and to the flipping part 12, forming a rotatable support relationship. This can both support the flipping part 12 to prevent it from detaching from the main body 100 and will not hinder the independent flipping of the flipping part 12 around the second axis b'.

[0081] In the plane perpendicular to the first axis a', the projected area of ​​the connecting part 131 is smaller than the projected area of ​​the supporting part 132. After the connecting part 131 passes through the flipping member 12 and connects to the main body part 100, the supporting part 132 is located below the flipping member 12 to support the flipping member 12.

[0082] In one embodiment, such as Figure 2 As shown, the flipping component 12 is provided with a first receiving cavity 123 and a connecting hole 124. The transmission component 121 is disposed in the first receiving cavity 123. The connecting hole 124 penetrates the flipping component 12 in a direction parallel to the first axis a' and communicates with the first receiving cavity 123. One end of the main body portion 100 along the extension direction of the first axis a' is disposed in the first receiving cavity 123. The connecting part 131 passes through the connecting hole 124 and is connected to the main body portion 100. The connecting part 131 and the connecting hole 124 are clearance-fitted.

[0083] The first receiving cavity 123 reserves a "nesting space" for the main body 100. When the connecting part 131 passes through the connecting hole 124, it can enter the first receiving cavity 123 and connect with the main body 100. This can reduce the space occupied in the direction of the first axis a'. At the same time, this structure is also conducive to realizing that the flipping part 12 rotates synchronously with the main body 100.

[0084] The connecting part 131 and the connecting hole 124 are fitted with a clearance fit. The clearance between them provides the rotating part 12 with a degree of freedom of rotation, and the connecting hole 124 will not cause movement jamming of the rotating part 12. Generally speaking, in the rotation direction of the rotating part 12, when the hole wall of the connecting hole 124 abuts against the connecting part 131, the rotating part 12 reaches the maximum rotation position.

[0085] In one embodiment, the connecting portion 131 is columnar and extends in a direction parallel to the first axis a'. Preferably, the connecting portion 131 is cylindrical.

[0086] In one embodiment, such as Figure 2 As shown, the support part 132 is provided with a first arc-shaped surface 1321a, and the flipping part 12 is provided with a second arc-shaped surface 125a. The first arc-shaped surface 1321a can fit into the second arc-shaped surface 125a, that is, the surfaces of the support part 132 and the flipping part 12 that are in contact are both arc-shaped surfaces.

[0087] The central axis of the first arc-shaped surface 1321a coincides with the central axis of the second arc-shaped surface 125a, so that when the flipping drive assembly 11 drives the flipping member 12 to rotate, the flipping member 12 can rotate relative to the support portion 132.

[0088] The first arc surface 1321a and the second arc surface 125a have the same radius of curvature and their central axes completely coincide. This design allows them to form surface contact rather than point / line contact when they come into contact, and the contact position is always kept on the same circumference with the central axis as the center.

[0089] When the flipping drive assembly 11 drives the flipping member 12 to rotate around the second axis b', the second arc surface 125a of the flipping member 12 will slide relative to the first arc surface 1321a with the central axis as the center. Since the curvature matches and the central axis coincides, the two arc surfaces can always maintain a close contact state, so that the contact relationship is not interrupted during the rotation. That is, the support part 132 can rotate relative to the flipping member 12 and maintain the support function without interruption during the rotation of the flipping member 12.

[0090] The central axis of the first arc surface 1321a and the central axis of the second arc surface 125a should coincide with the second axis b'. The central angle of both the first arc surface 1321a and the second arc surface 125a should be less than or equal to 90 degrees.

[0091] In one embodiment, such as Figure 4 As shown, the flipping part 12 is provided with a second receiving cavity 125, and the connecting hole 124 communicates with the second receiving cavity 125. The first receiving cavity 123 communicates with the second receiving cavity 125 through the connecting hole 124. The support part 132 is disposed in the second receiving cavity 125. When the connecting part 131 passes through the connecting hole 124, one end of the connecting part 131 is located in the first receiving cavity 123 and is connected to the main body part 100, and the other end of the connecting part 131 is located in the second receiving cavity 125 and is connected to the support part 132.

[0092] The second arc-shaped surface 125a is the inner wall surface of the second receiving cavity 125, which is an arc-shaped cavity. The second arc-shaped surface 125a wraps around the first arc-shaped surface 1321a of the support part 132, forming an annular surface contact. When the flipping part 12 rotates around the second axis b', the two arc-shaped surfaces slide relative to each other in the circumferential direction and always remain in contact.

[0093] In addition, by accommodating the support portion 132 in the second receiving cavity 125, it is possible to both support the flipping member 12 and reduce the space occupied by the flipping mechanism 10 in the direction of the first axis a'.

[0094] In one embodiment, such as Figure 3 , Figure 4 As shown, the support part 132 includes an arc-shaped member 1321, a first connecting plate 1322 and a second connecting plate 1323. The first connecting plate 1322 and the second connecting plate 1323 are both connected to the arc-shaped member 1321. The first connecting plate 1322 and the second connecting plate 1323 are spaced apart along the central axis of the arc-shaped member 1321. The first connecting plate 1322 and the second connecting plate 1323 are rigidly connected to the arc-shaped member 1321 (such as by welding or integral injection molding). The two together support the arc-shaped member 1321 and enhance the structural rigidity of the arc-shaped member 1321.

[0095] The first arc-shaped surface 1321a is the outer surface of the arc-shaped component 1321, thereby enabling the first arc-shaped surface 1321a and the second arc-shaped surface 125a to fit together and slide relative to each other in the circumferential direction.

[0096] Preferably, the central angle of the first arc surface 1321a is approximately equal to or equal to the central angle of the second arc surface 125a. When the flipping component 12 rotates around the second axis b', the two arc surfaces always maintain a large area of ​​contact, ensuring that the relative position of the flipping component 12 and the main body 100 is stable and there is no relative shaking. This is beneficial for the flipping component 12 to follow the rotation of the main body 100 and reduce the situation of following lag.

[0097] In one embodiment, the second receiving cavity 125 further has a plane that surrounds and defines the second receiving cavity 125 with the second arcuate surface 125a, and the first connecting plate 1322 is attached to the plane.

[0098] In other alternative embodiments, the first receiving cavity 123 is disposed on the support portion 132, and the arc-shaped member 1321 is disposed on the flipping member 12. The arc-shaped member 1321 protrudes toward the support portion 132, and the arc-shaped surface of the arc-shaped member 1321 fits with the arc-shaped surface of the first receiving cavity 123, which can also achieve support for the flipping member 12 and independent rotation of the flipping member 12.

[0099] In another embodiment (not shown), the support portion 132 is provided with an arc-shaped protrusion, and the flipping member 12 is provided with an arc-shaped groove. The arc-shaped protrusion is disposed in the arc-shaped groove, the first arc-shaped surface 1321a is disposed on the arc-shaped protrusion, and the second arc-shaped surface 125a is disposed in the arc-shaped groove. In this case, the arc-shaped protrusion on the support portion 132 is fan-shaped, and two arc-shaped protrusions are provided at the end of the connecting portion 131 away from the main body portion 100. The two arc-shaped protrusions are arranged opposite each other in the radial direction of the connecting portion 131. During the rotation of the flipping member 12 around the second axis b', both arc-shaped protrusions can slide in the arc-shaped groove.

[0100] Alternatively, the support portion 132 is provided with an arc-shaped groove, and the flipping member 12 is provided with an arc-shaped protrusion. The arc-shaped protrusion is disposed in the arc-shaped groove, the first arc-shaped surface 1321a is disposed in the arc-shaped groove, and the second arc-shaped surface 125a is disposed in the arc-shaped protrusion. In this case, the arc-shaped groove is disposed on the arc-shaped member 1321 of the support portion 132 and is recessed toward the central axis of the arc-shaped member 1321. The arc-shaped protrusion is disposed on the inner wall surface of the second receiving cavity 125 of the flipping member 12 and protrudes toward the central axis of the arc-shaped member 1321. During the rotation of the flipping member 12 around the second axis b', the arc-shaped protrusion can slide in the arc-shaped groove.

[0101] In one embodiment, such as Figure 2 , Figure 6 As shown, a rotating connecting plate 126 is provided on the side of the flipping component 12 away from the connecting component 13, and the rotating connecting plate 126 is rotatably connected to the main body 100. The connection between the rotating connecting plate 126 and the main body 100 forms an additional rotational support point, thereby sharing the weight of the flipping component 12 and improving the connection stability of the flipping component 12.

[0102] Furthermore, the main body 100 is provided with a connecting groove 321, and a rotating connecting plate 126 is disposed in the connecting groove 321. The rotating connecting plate 126 is connected to the main body 100 through a pin 127. When the flipping part 12 rotates around the second axis b', the rotating connecting plate 126 can rotate around the pin 127. The central axis of the pin 127 is parallel to the second axis b'.

[0103] In a preferred embodiment, the rotating connecting plate 126 is arc-shaped, the connecting groove 321 is an arc-shaped groove, and the arc-shaped groove matches the curvature of the rotating connecting plate 126 and coincides with the central axis, so as to avoid affecting the movement of the rotating connecting plate 126.

[0104] In one embodiment, such as Figure 2 , Figure 6 As shown, the flip drive assembly 11 includes a flip drive component 111 and a first worm gear 112. The first worm gear 112 is disposed between the output end of the flip drive component 111 and the transmission component 121. The driving force of the flip drive component 111 can be transmitted to the transmission component 121 through the first worm gear 112.

[0105] The transmission component 121 is provided with a first meshing tooth 1211, and the first worm 112 meshes with the transmission component 121. The flipping drive component 111 can drive the first worm 112 to rotate, thereby driving the transmission component 121 to rotate around the second axis b'.

[0106] When the tilting drive 111 is activated, it drives the first worm 112 to rotate around its own axis. The first meshing tooth 1211 on the transmission component 121 meshes with the helical tooth of the first worm 112, converting the rotational motion of the first worm 112 into the rotational motion of the transmission component 121 around the second axis b', thereby driving the tilting component 12 to rotate. Furthermore, the worm gear transmission has a reverse self-locking property, meaning that only the first worm 112 can drive the transmission component 121, and the transmission component 121 cannot drive the first worm 112 in the reverse direction. Once the tilting component 12 has rotated to a certain angle, even if the power of the tilting drive 111 is removed, the meshing action between the first worm 112 and the transmission component 121 prevents the transmission component 121 from rotating in the opposite direction due to external force, ensuring that the tilting component 12 remains stably in the set position, so that the viewing angle of the rearview device will not be shifted due to vehicle bumps or external collisions.

[0107] In one embodiment, the transmission component 121 is a gear or a gear segment. Preferably, in this embodiment, the transmission component 121 is fan-shaped, and the first meshing teeth 1211 are disposed on the outer surface of the transmission component 121. The transmission component 121 and the flipping component 12 are integrally formed.

[0108] In another embodiment, the transmission component 121 is a circular transmission gear, which is mounted on the flipping component. The central axis of the transmission gear is the second axis, and it can also mesh with the first worm gear 112 through the transmission gear.

[0109] In one embodiment, the flipping drive 111 is a motor.

[0110] In one embodiment, such as Figure 6As shown, the flip drive assembly 11 further includes a first gear 114, a second gear 115, and a second worm 113. The central axis of the first gear 114 coincides with the central axis of the first worm 112. Preferably, the first gear 114 is connected to one end of the first worm 112. The second worm 113 is connected to the output end of the flip drive assembly 111, and the second worm 113 meshes with the second gear 115. The first gear 114 and the second gear 115 are connected in a transmission connection.

[0111] The output end of the flipping drive 111 is directly connected to the second worm 113, driving it to rotate. The second worm 113 and the second gear 115 form a first-stage meshing, transmitting the rotational motion to the second gear 115. The second gear 115 is connected to the first gear 114, transmitting power from the second gear 115 to the first gear 114. The first gear 114 is coaxially connected to the first worm 112, so the rotation of the first gear 114 directly drives the first worm 112 to rotate synchronously. The first worm 112 then drives the transmission component 121 and the flipping component 12 to rotate around the second axis b' through the engagement of the first meshing teeth 1211 of the transmission component 121, completing the rotation of the flipping component 12.

[0112] The second worm gear 113 and the second gear 115 are connected by a perpendicularly intersecting shaft transmission. The axis of the second gear 115 is parallel to the axis of the first gear 114, forming a parallel shaft transmission between them, thus enabling the conversion of transmission direction. Both the second gear 115 and the first gear 114 are spur gears or helical gears. If the axis of the second gear 115 is perpendicular to the axis of the first gear 114, spatial steering can be achieved through a bevel gear.

[0113] In this embodiment, the flip drive assembly 11 is installed on the main body 100. By setting the first gear 114, the second gear 115 and the second worm gear 113, the power transmission direction can be flexibly adjusted, so that the installation position of the flip drive assembly 111 can be flexibly adjusted, and the structure of the flip drive assembly 11 is more in line with the spatial constraints of the main body 100.

[0114] As an example, the first gear 114 meshes with the second gear 115. At this time, the power transmission path is as follows: the second worm 113 transmits the rotational motion to the second gear 115, the second gear 115 transmits the power to the first gear 114, and the rotation of the first gear 114 directly drives the first worm 112 to rotate synchronously.

[0115] In one embodiment, such as Figure 7As shown, the second gear 115 includes a first sub-gear 1151 and a second sub-gear 1152, which are coaxially connected. The tooth pitch of the first sub-gear 1151 is different from that of the second sub-gear 1152. The first sub-gear 1151 meshes with the first gear 114, and the second sub-gear 1152 meshes with the second worm 113. In this case, the second worm 113 transmits rotational motion to the second sub-gear 1152, which rotates synchronously with the first sub-gear 1151. The first sub-gear 1151 drives the first gear 114 to rotate, and the rotation of the first gear 114 directly drives the first worm 112 to rotate synchronously.

[0116] In this embodiment, by setting different tooth pitches, the transmission ratio from the second worm 113 to the first gear 114 can be flexibly adjusted when transmitting power from the second worm 113 to the first gear 114.

[0117] Preferably, the pitch of the first sub-gear 1151 is greater than that of the second sub-gear 1152, meaning the first sub-gear 1151 has fewer teeth and the second sub-gear 1152 has more teeth. When the first sub-gear 1151 meshes with the first gear 114, the number of teeth of the first gear 114 matches that of the first sub-gear 1151. This allows for increased speed of the first gear 114 under the same driving force of the flipping drive 111 during power transmission from the second worm 113 to the first gear 114. During the flipping process, only a smaller driving force is needed to achieve the flipping of the flipping component 12.

[0118] In one embodiment, such as Figure 13 As shown, the flipping drive assembly 11 also includes a fifth worm gear 116, the central axis of which coincides with the central axis of the second gear 115, and the fifth worm gear 116 meshes with the first gear 114. Under the drive of the flipping drive member 111, the transmission member 121 can be driven to rotate around the second axis after passing through the second worm gear 113, the second gear 115, the fifth worm gear 116, the first gear 114, and the first worm gear 112 in sequence, thereby realizing the rotation of the flipping member 12.

[0119] The second worm 113 and the second gear 115 are connected by a perpendicularly crossed shaft drive. The second gear 115 is coaxially connected to the fifth worm 116, and the second gear 115 is located at the end of the fifth worm 116 closest to the second worm 113. The fifth worm 116 and the first gear 114 are connected by a perpendicularly crossed shaft drive. The first gear 114 is connected to one end of the first worm 112.

[0120] The fifth worm gear 116 connects the second gear 115 and the first gear 114, which can change the setting position of the second gear 115 so that the central axis of the second gear 115 can be extended in a direction parallel to the first axis. This reduces the distance between the first gear 114 and the folding column 21, making the structure of the main body more compact in the direction of the second axis, thereby reducing the overall size of the rearview device in the direction of the second axis.

[0121] In one embodiment, such as Figure 2 , Figure 6 As shown, the flipping mechanism 10 also includes a first detection gear 14 and a flipping potentiometer 15. The flipping potentiometer 15 is mounted on the main body 100 and connected to the first detection gear 14. A meshing member 122 is provided in the first receiving cavity 123 of the flipping member 12, and the meshing member 122 meshes with the first detection gear 14. When the flipping member 12 rotates around the second axis b', the meshing member 122 rotates with the flipping member 12, which can drive the first detection gear 14 to rotate around its own axis. The change in the flipping angle of the flipping member 12 is fed back to the change in the circumferential angle of the flipping potentiometer 15 through the meshing member 122 and the first detection gear 14, thereby realizing the detection of the rotation angle of the flipping member 12.

[0122] Among them, the flip potentiometer 15 is an existing structure, and its principle and structure will not be described in detail here.

[0123] On the other hand, such as Figure 1 As shown, this embodiment of the invention provides a rearview device, including a main body 100 and a flipping mechanism 10 of any of the above embodiments. The main body 100 is adapted to be connected to a vehicle body. The main body 100 includes a housing 30 and a folding mechanism 20. The folding mechanism 20 and the flipping drive assembly 11 are disposed in the housing 30. The folding mechanism 20 is capable of rotating around a first axis a'.

[0124] The flip-up component 12 can be equipped with functional components such as lenses and mirrors. Driven by the flip-up drive assembly 11, the flip-up component 12 rotates independently around the second axis b', enabling fine adjustment of the rear view. For example, by rotating the flip-up component 12, the tilt angle of the lens can be changed, allowing the driver to better observe the ground conditions, or the reflection angle of the mirror can be switched to eliminate glare.

[0125] The folding mechanism 20 allows the entire device to be folded up, reducing the risk of scratches when the vehicle is parked, or reducing the width of the vehicle body when passing through narrow passages, thus improving traffic safety.

[0126] In one embodiment, such as Figure 5 , Figure 6 As shown, a snap-fit ​​member 33 is provided inside the housing 30, and the snap-fit ​​member 33 is tightly fitted between the inner wall surface of the housing 30 and the side surface of the engaging member 122. Figure 5As shown, the second axis b' extends in the left-right direction, and the snap-fit ​​member 33 is tightly fitted between the right side wall of the housing 30 and the left side of the engaging member 122. The snap-fit ​​member 33 is sleeved on the outside of the connecting part 131. The end of the connecting part 131 away from the support part 132 is provided with a first slot 1311. The inner ring of the snap-fit ​​member 33 is engaged in the first slot 1311. The snap-fit ​​member 33 realizes the connection between the connecting part 131 and the housing 30, so that the connecting part 131 will not detach from the main body part 100.

[0127] Preferably, the first slot 1311 is annular.

[0128] In one embodiment, a second elastic member 16 is provided on the outer sleeve of the connecting portion 131. The second elastic member 16 provides a pre-tightening force for the connection between the flipping member and the main body. The second elastic member 16 is pressed between the snap-fit ​​member 33 and the inner wall surface of the housing 30, such as... Figure 5 As shown, the first axis a' extends vertically, and the second elastic element 16 is pressed between the lower side of the snap-fit ​​33 and the bottom inner wall of the housing 30. The second elastic element 16 provides a stable preload through continuous elastic deformation, forming an upward pulling force on the connecting part 131 (along the direction of the first axis a'), thereby firmly holding the connecting part 131 in place and effectively preventing loosening or even detachment due to vibration, impact, or long-term use. This further enhances the connection reliability between the connecting part 131 and the main body 100, improving the stability of the flipping part 12. In addition, the second elastic element 16 also provides elastic cushioning, reducing the shaking of the flipping part during the flipping process.

[0129] In one embodiment, the folding mechanism 20 includes a rotation axis assembly about which the folding mechanism 20 is rotatable. The rotation axis assembly serves as the rotation axis of the main body 100, enabling the folding mechanism 20 to rotate about a first axis a'.

[0130] In one embodiment, such as Figure 2 , Figure 5 , Figure 8 As shown, the rotating shaft assembly includes a folding column 21, a first assembly 22, and a second assembly 23. The folding column 21 is hollow and passes through the housing 30 and is connected to the vehicle body. The first axis a' coincides with the central axis of the folding column 21. The folding column 21 is fixed to the vehicle body, and the main body 100 is mounted on the vehicle body through the folding column 21, providing a mounting base for the rearview device. The folding column 21 and the housing 30 are fitted with a clearance fit, and when the main body 100 rotates, the folding column 21 and the housing 30 rotate relative to each other.

[0131] The first kit 22 is fitted onto the outside of the folding column 21. The folding column 21 and the first kit 22 are fixed relative to each other along the axial direction of the folding column 21, that is, the first kit 22 will not slide relative to the folding column 21 along the axial direction.

[0132] The second kit 23 is fitted onto the outside of the folding column 21. The folding column 21 and the second kit 23 are fixed relative to each other in the circumferential direction of the folding column 21, that is, the second kit 23 will not rotate relative to the folding column 21.

[0133] The first kit 22 and the second kit 23 have a separated state and an engaged state. In the separated state, the first kit 22 and the second kit 23 can rotate relative to each other, and the second kit 23 can move relative to the folding column 21 along the axial direction of the folding column 21. In this case, the first kit 22 and the second kit 23 can rotate relative to each other, and the second kit 23 can slide along the folding column 21. Since the second kit 23 does not rotate relative to the folding column 21, the first kit 22 and the folding column 21 can also rotate relative to each other in the separated state.

[0134] In the engaged state, the first assembly 22, the second assembly 23, and the folding column 21 are fixed relative to each other, and the folding mechanism 20 can rotate relative to the rotating shaft assembly. Here, the first assembly 22, the second assembly 23, and the folding column 21 being fixed relative to each other means that the three components do not rotate relative to each other, nor do they move relative to each other axially; the three components form a single unit. Since the folding column 21 is fixed to the vehicle body, the rotating shaft assembly remains stationary, and the folding mechanism 20 can rotate about the rotating shaft assembly as its axis of rotation.

[0135] In one embodiment, such as Figure 8 , Figure 9 As shown, the first assembly 22 is provided with a plurality of first card slots 221 and a plurality of first card blocks 222, which are alternately arranged along the inner circumferential surface of the first assembly 22; the second assembly 23 is provided with a plurality of second card slots 231 and a plurality of second card blocks 232, which are alternately arranged along the inner circumferential surface of the second assembly 23.

[0136] In the engaged state, the first latching block 222 is located in the second latching groove 231, and the second latching block 232 is located in the first latching groove 221; in the disengaged state, the first latching block 222 and the second latching block 232 abut against each other.

[0137] When in the engaged state, the second component 23 moves along the axial direction of the folded column 21 and approaches the first component 22. At this time, the first locking block 222 is embedded in the second locking groove 231, and the second locking block 232 is simultaneously embedded in the first locking groove 221, forming a concave-convex interlocking structure, and the connection between the two components is relatively stable.

[0138] In the separated state, the first locking block 222 and the second locking block 232 are axially opposite to each other and abut against each other. The first locking groove 221 and the second locking groove 231 are axially opposite to each other. At this time, no parts are embedded in the first locking groove 221 and the second locking groove 231, and the interlocking structure is released. At this time, by applying external force to the first kit 22, the relative rotation of the two can be achieved.

[0139] In one embodiment, both the first latching block 222 and the second latching block 232 extend axially along the folding column 21. When both the first kit 22 and the second kit 23 are fitted onto the folding column 21, in the engaged state, the first latching block 222 is axially inserted into the second latching groove 231, and the second latching block 232 is axially inserted into the first latching groove 221. By changing the relative positions of the first kit 22 and the second kit 23 in the circumferential direction, a disengaged state can be achieved, causing the first latching block 222 to disengage from the second latching groove 231, and the second latching block 232 to disengage from the first latching groove 221.

[0140] In one embodiment, the shape of the first latching block 222 is adapted to the shape of the second latching slot 231, and the shape of the second latching block 232 is adapted to the shape of the first latching slot 221.

[0141] Specifically, such as Figure 9 As shown, the first snap-fit ​​block 222 is trapezoidal, and has a first abutment surface 222a and a first inclined surface 222b. The first abutment surface 222a is flat and extends radially along the first assembly 22, and connects to the first inclined surface 222b. A first snap-fit ​​groove 221 is formed between two adjacent first snap-fit ​​blocks 222.

[0142] like Figure 9 , Figure 10 As shown, the second snap-fit ​​block 232 is trapezoidal, and has a second abutment surface 232a and a second inclined surface 232b. The second abutment surface 232a is flat and extends radially along the second assembly 23, and connects to the second inclined surface 232b. A second snap-fit ​​groove 231 is formed between two adjacent second snap-fit ​​blocks 232.

[0143] In the engaged state, after forming an interlocking structure, the first inclined surface 222b of the first locking block 222 and the inclined surface of the second locking block 232 are in contact with each other. In this state, when an external force is applied to the first assembly 22, the interaction force between the first inclined surface 222b and the second inclined surface 232b has an axial component, causing them to tend to separate. If the external force is sufficient, the engaged first assembly 22 and the second assembly 23 can separate. In the separated state, the first abutting surface 222a of the first locking block 222 and the second abutting surface 232a of the second locking block 232 are in contact with each other. In this case, the position between the two assemblies is not very stable and is prone to relative rotation. Under external force, they can transform back into the engaged state.

[0144] In one embodiment, such as Figure 9 , Figure 10 As shown, the second assembly 23 is provided with a limiting member 233, which protrudes toward the central axis of the second assembly 23. The folding column 21 is provided with a limiting groove 2111, and the limiting member 233 is disposed in the limiting groove 2111. The limiting member 233 can move along the limiting groove 2111 in the axial direction of the folding column 21.

[0145] The limiting groove 2111 extends along the axial direction of the folding column 21. The limiting groove 2111 can limit the movement direction of the limiting member 233, so that the second kit 23 and the folding column 21 will not rotate relative to each other, but will only move relative to each other in the axial direction.

[0146] Preferably, the limiting member 233 is disposed radially inside the second latching block 232. The number of limiting members 233 may be the same as or less than the number of the second latching blocks 232.

[0147] In one embodiment, multiple limiting members 233 are provided, and the multiple limiting members 233 are spaced apart circumferentially on the second assembly 23. Multiple limiting grooves 2111 are provided, and the multiple limiting grooves 2111 are spaced apart circumferentially on the folded column 21. Each limiting member 233 is disposed in a corresponding limiting groove 2111.

[0148] In one embodiment, such as Figure 9 As shown, the limiting groove 2111 has a first axial surface 2111a extending along the axial direction, and the limiting member 233 has a corresponding second axial surface 233a, which fit together. When an external force is applied to the second assembly 23, the forces between the first axial surface 2111a and the second axial surface 233a are equal in magnitude and opposite in direction, and can completely cancel each other out. Therefore, no matter how much external force is applied, there will be no relative rotation between the second assembly 23 and the folding column 21.

[0149] In one embodiment, such as Figure 8As shown, the folding column 21 includes a first column 211 and a second column 212. The first column 211 is sleeved on the outside of the second column 212. The first column 211 and the second column 212 are fixed relative to each other in the circumferential direction. The limiting groove 2111 is provided on the first column 211.

[0150] In one embodiment, such as Figure 2 , Figure 5 As shown, the folding mechanism 20 also includes a folding drive assembly 26. The output end of the folding drive assembly 26 is connected to the first assembly 22. The folding drive assembly 26 can drive the rotating shaft assembly to rotate, and the first assembly 22 and the second assembly 23 remain engaged.

[0151] When the folding drive assembly 26 stops and an external force is applied to rotate the rotating shaft assembly, the first assembly 22 and the second assembly 23 switch between a separated state and an engaged state.

[0152] The rearview device has two adjustment modes: adjustment via the folding drive assembly 26 and manual adjustment. When the first assembly 22 and the second assembly 23 are engaged, the first assembly 22, the second assembly 23, and the folding column 21 are relatively fixed. When adjusted via the folding drive assembly 26, the driving force of the folding drive assembly 26 acts on the first assembly 22. Under the interaction between the two, since the first assembly 22 remains stationary, the folding mechanism 20 rotates around the first assembly 22, thereby realizing the folding of the rearview device.

[0153] When manually adjusted, in the engaged state, pushing the housing 30 by hand will cause the housing 30 and the folding mechanism 20 inside the housing 30 to rotate synchronously. The folding drive assembly 26 will move synchronously. The output end of the folding drive assembly 26 will apply force to the first kit 22 and transmit the external force to the second kit 23 and the folding column 21, which can cause the first inclined surface 222b and the second inclined surface 232b to abut against each other, and the first axial surface 2111a and the second axial surface 233a to abut against each other.

[0154] Since the forces between the first inclined plane 222b and the second inclined plane 232b cannot cancel each other out, the component force along the inclined plane direction will drive the two components to separate. Because the first component 22 is constrained by the output end of the folding drive assembly 26, the second component 23 eventually moves axially and disengages from the first component 22. At this point, the first component 22 can move synchronously with the folding drive assembly 26. When the first component 22 continues to rotate until the first latching block 222 aligns with the second latching slot 231, and the second latching block 232 aligns with the first latching slot 221, the second component 23 can return to its original position. Therefore, as the first component 22 rotates with the housing 30, the second component 23 exhibits an axial reciprocating motion.

[0155] In this embodiment, the axial movement of the second component 23 provides space for the rotation of the first component 22, thus avoiding the second component 23 locking the first component 22.

[0156] It should be noted that the axial dimension of the limiting groove 2111 is greater than the stroke of the second component 23, so that the limiting component 233 will never disengage from the limiting groove 2111 during the axial movement of the second component 23.

[0157] In one embodiment, such as Figure 5 , Figure 8 As shown, the rotating shaft assembly also includes a first elastic element 24, which is sleeved on the outside of the folding column 21 and is located on the side of the second assembly 23 away from the first assembly 22.

[0158] When switching from the engaged state to the disengaged state, the second component 23 moves away from the first component 22 along the axial direction of the folding column 21 and presses against the first elastic member 24; when switching from the disengaged state to the engaged state, the elastic force generated by the first elastic member 24 can push the second component 23 closer to the first component 22 along the axial direction of the folding column 21. When manually rotating the rearview device, as the first component 22 rotates with the housing 30, when the first abutment surface 222a and the second abutment surface 232a gradually separate, the elastic force of the first elastic member 24 can push the second component 23 towards the first component 22, so that the first component 22 and the second component 23 can engage.

[0159] The first elastic element 24 is a helical spring.

[0160] In one embodiment, a stop 25 is connected to the end of the folding column 21 away from the first kit 22. The stop 25 is sleeved on the outside of the folding column 21, and the first elastic member 24 is pressed between the second kit 23 and the stop 25.

[0161] The folding column 21 is provided with a second slot 2121, and the inner ring of the stop member 25 is engaged in the second slot 2121. Preferably, the second slot 2121 is annular and is provided on the second column 212.

[0162] In one embodiment, such as Figure 11 As shown, the folding drive assembly 26 includes a folding drive component 261 and a third worm gear 262. The third worm gear 262 is disposed between the output end of the folding drive component 261 and the first assembly 22. The driving force of the folding drive component 261 can be transmitted to the first assembly 22 through the third worm gear 262.

[0163] The outer peripheral surface of the first kit 22 has a second meshing tooth 223, the third worm 262 meshes with the first kit 22, and the folding drive 261 is used to drive the third worm 262 to rotate so that the third worm 262 rotates around the first kit 22, thereby causing the folding mechanism 20 to rotate around the rotating shaft assembly.

[0164] When the folding drive 261 is activated, it can drive the third worm 262 to rotate around its own axis. The second meshing tooth 223 on the first assembly 22 meshes with the helical tooth of the third worm 262. Since the first assembly 22 and the folding column 21 remain fixed, the rotational motion of the third worm 262 will be converted into the rotational motion of the third worm 262 around the first assembly 22, thereby driving the folding mechanism 20 to rotate.

[0165] In addition, the engagement between the third worm gear 262 and the first assembly 22 is self-locking. When the rearview device is manually rotated, the third worm gear 262 moves synchronously with the rearview device. Under the engagement of the two, the third worm gear 262 will force the first assembly 22 to rotate relative to the folding column 21, while driving the second assembly 23 to move back and forth along the axial direction.

[0166] In one embodiment, the folding drive 261 is a motor.

[0167] In one embodiment, such as Figure 11 As shown, the folding drive assembly 26 also includes a third gear 264, a fourth gear 265, and a fourth worm 263. The central axis of the third gear 264 coincides with the central axis of the third worm 262. Preferably, the third gear 264 is connected to one end of the third worm 262.

[0168] The fourth worm gear 263 is connected to the output end of the folding drive 261. The fourth worm gear 263 meshes with the fourth gear 265, and the third gear 264 is connected to the fourth gear 265 in a transmission connection.

[0169] The output end of the folding drive component 261 is directly connected to the fourth worm gear 263, driving it to rotate. The fourth worm gear 263 and the fourth gear 265 form a first-stage meshing, transmitting the rotational motion to the fourth gear 265. The fourth gear 265 is connected to the third gear 264, transmitting power from the fourth gear 265 to the third gear 264. The third gear 264 is coaxially connected to the third worm gear 262, so the rotation of the third gear 264 can directly drive the third worm gear 262 to rotate synchronously. The third worm gear 262 then drives the folding mechanism 20 to rotate around the first axis a' through the engagement of the second meshing tooth 223 of the first component 22, thus completing the unfolding and folding of the device.

[0170] In one example, the third gear 264 meshes with the fourth gear 265. At this time, the power transmission path is as follows: the fourth worm 263 transmits the rotational motion to the fourth gear 265, the fourth gear 265 transmits the power to the third gear 264, and the rotation of the third gear 264 directly drives the third worm 262 to rotate synchronously.

[0171] In one embodiment, such as Figure 12 As shown, the fourth gear includes a third sub-gear 2651 and a fourth sub-gear 2652, which are coaxially connected. The tooth pitch of the third sub-gear 2651 is different from that of the fourth sub-gear 2652. The third sub-gear 2651 meshes with the third gear 264, and the fourth sub-gear 2652 meshes with the fourth worm. In this case, the fourth worm 263 transmits rotational motion to the fourth sub-gear 2652. The fourth sub-gear 2652 rotates synchronously with the third sub-gear 2651. The third sub-gear 2651 drives the third gear 264 to rotate, and the rotation of the third gear 264 directly drives the third worm 262 to rotate synchronously.

[0172] In this embodiment, by setting different tooth pitches, the transmission ratio from the fourth worm 263 to the third gear 264 can be flexibly adjusted when transmitting power from the fourth worm 263 to the third gear 264.

[0173] Preferably, the pitch of the third sub-gear 2651 is greater than that of the fourth sub-gear 2652, meaning the third sub-gear 2651 has fewer teeth and the fourth sub-gear 2652 has more teeth. When the third sub-gear 2651 meshes with the third gear 264, the number of teeth of the third gear 264 and the third sub-gear 2651 are matched. Thus, during the power transmission from the fourth worm 263 to the third gear 264, under the same driving force of the folding drive component 261, the speed of the third gear 264 can be increased, thereby increasing the rotational speed of the third worm 262. Therefore, during the folding process, only a smaller driving force is needed to achieve the folding of the main body.

[0174] In one embodiment, such as Figure 13 As shown, the folding drive assembly 26 also includes a sixth worm gear 266, the central axis of which coincides with the central axis of the fourth gear 265, and the sixth worm gear 266 meshes with the third gear 264. Driven by the folding drive unit 261, the main body can be driven to rotate around the first axis after passing through the fourth worm gear 263, the fourth gear 265, the sixth worm gear 266, the third gear 264, and the third worm gear 262 in sequence, thereby realizing the folding of the rearview device.

[0175] The fourth worm 263 and the fourth gear 265 are connected by a perpendicularly crossed shaft drive. The fourth gear 265 is coaxially connected to the sixth worm 266, and the fourth gear 265 is located at the end of the sixth worm 266 closest to the fourth worm 263. The sixth worm 266 and the third gear 264 are connected by a perpendicularly crossed shaft drive. The third gear 264 is connected to one end of the third worm 262.

[0176] In this embodiment, the sixth worm gear 266 is connected between the fourth gear 265 and the third gear 264, which can change the setting position of the fourth gear 265 so that the central axis of the fourth gear 265 can be extended in a direction parallel to the first axis. This reduces the distance between the third gear 264 and the folding column, making the structure of the main body more compact in the second axis direction, thereby reducing the overall size of the rearview device in the second axis direction.

[0177] In one embodiment, a third meshing tooth 234 is provided on the outer peripheral surface of the second assembly 23, and a second detection gear 27 and a folding potentiometer 28 are provided inside the housing 30. The folding potentiometer 28 is mounted on the second detection gear 27, and the second assembly 23 meshes with the second detection gear 27. When the folding mechanism 20 rotates, the second detection gear 27 rotates with the folding mechanism 20, so that the second detection gear 27 can rotate around the second assembly 23, thereby feeding back the change in the folding angle of the folding mechanism 20 as a change in the circumferential angle of the folding potentiometer 28 through the second assembly 23 and the second detection gear 27, thus realizing the detection of the folding angle of the folding mechanism 20.

[0178] Among them, the folding potentiometer 28 is an existing structure, and its principle and structure will not be described in detail here.

[0179] In one embodiment, such as Figure 2 As shown, the housing 30 includes an upper housing 31 and a lower housing 32, which are connected to form an inner cavity. The folding mechanism 20 and the flipping drive assembly 11 are both disposed in the inner cavity. The connecting groove 321 is disposed on the lower housing 32.

[0180] In another aspect, embodiments of the present invention provide a vehicle, including a vehicle body and a rearview device of any of the above embodiments, wherein the rearview device is connected to the vehicle body.

[0181] The rearview device's flip-up component 12 can be fitted with functional components such as lenses and mirrors. Rotating the flip-up component 12 changes the lens's tilt angle, allowing the driver to better observe the ground conditions, or switches the mirror's reflection angle to eliminate glare. The folding mechanism 20 allows the rearview device to be folded down entirely, reducing the risk of scratches when the vehicle is parked, or narrowing the vehicle's width when passing through narrow passages, thus improving traffic safety.

[0182] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A flipping mechanism, suitable for installation on the main body of a rearview device, characterized in that, The flipping mechanism includes a flipping drive assembly, a flipping component, and a connecting component; The connector can pass through the flipper and connect to the main body. The connector is fixed relative to the main body. When the main body rotates around the first axis, the flipper is fixed relative to the main body. The flipping component is provided with a transmission component, and the flipping drive assembly is connected to the transmission component. The flipping drive assembly can drive the transmission component to rotate around the second axis, so that the flipping component can rotate relative to the connecting component and the main body. The first axis intersects the second axis. The flip drive assembly includes a flip drive component and a first worm gear. The first worm gear is disposed between the output end of the flip drive component and the transmission component. The transmission component is provided with a first meshing tooth, and the first worm gear meshes with the transmission component. The flipping drive can drive the first worm to rotate, thereby causing the transmission component to rotate around the second axis; The transmission component is a transmission gear, and the central axis of the transmission gear is the second axis.

2. The flipping mechanism as described in claim 1, characterized in that, The connector includes a connecting part and a supporting part. One end of the connecting part is used to connect to the main body part, and the supporting part is connected to the end of the connecting part away from the main body part. The supporting part is used to support the flipping part, and the supporting part and the flipping part can rotate relative to each other.

3. The flipping mechanism as described in claim 2, characterized in that, The flipping component is provided with a first receiving cavity and a connecting hole, the connecting hole communicating with the first receiving cavity, and one end of the main body part along the extension direction of the first axis is disposed in the first receiving cavity; The connecting part passes through the connecting hole and is connected to the main body, and the connecting part and the connecting hole are clearance-fitted.

4. The flipping mechanism as described in claim 3, characterized in that, The support portion is provided with a first arc-shaped surface, and the flipping component is provided with a second arc-shaped surface, wherein the first arc-shaped surface can fit into the second arc-shaped surface; The central axis of the first arcuate surface coincides with the central axis of the second arcuate surface, so that when the flipping drive assembly drives the flipping member to rotate, the flipping member can rotate relative to the support portion.

5. The flipping mechanism as described in claim 4, characterized in that, The flipping component is provided with a second receiving cavity, the connecting hole communicates with the second receiving cavity, and the support part is disposed in the second receiving cavity; The second arc-shaped surface is the inner wall surface of the second receiving cavity.

6. The flipping mechanism as described in claim 4, characterized in that, The support includes an arc-shaped component, a first connecting plate, and a second connecting plate. Both the first connecting plate and the second connecting plate are connected to the arc-shaped component, and the first connecting plate and the second connecting plate are spaced apart along the central axis of the arc-shaped component. The first arc-shaped surface is the outer surface of the arc-shaped component.

7. The flipping mechanism as described in claim 4, characterized in that, The support portion is provided with an arc-shaped protrusion, the flipping component is provided with an arc-shaped groove, the arc-shaped protrusion is disposed in the arc-shaped groove, the first arc-shaped surface is disposed on the arc-shaped protrusion, and the second arc-shaped surface is disposed on the arc-shaped groove; or, The support portion is provided with an arc-shaped groove, and the flipping component is provided with an arc-shaped protrusion. The arc-shaped protrusion is disposed in the arc-shaped groove, the first arc-shaped surface is disposed in the arc-shaped groove, and the second arc-shaped surface is disposed in the arc-shaped protrusion.

8. The flipping mechanism as described in claim 3, characterized in that, The flipping mechanism further includes a first detection gear and a flipping potentiometer, wherein the flipping potentiometer is mounted on the main body and the first detection gear is mounted on the flipping potentiometer; The flipping component is provided with a meshing component, which is located in the first receiving cavity, and the first detection gear meshes with the meshing component.

9. The flipping mechanism as described in claim 2, characterized in that, A second elastic element is sleeved on the outside of the connecting part, and the second elastic element is used to provide pre-tightening force for the connection between the flipping part and the main body part.

10. The flipping mechanism as described in claim 1, characterized in that, A rotating connecting plate is provided on the side of the flipping component away from the connecting component, and the rotating connecting plate is rotatably connected to the main body.

11. The flipping mechanism as described in claim 1, characterized in that, The flipping drive assembly further includes a first gear, a second gear, and a second worm, wherein the central axis of the first gear coincides with the central axis of the first worm; The second worm gear is connected to the output end of the flipping drive component, and the second worm gear meshes with the second gear. The first gear is connected to the second gear in a transmission connection.

12. The flipping mechanism as described in claim 11, characterized in that, The second gear includes a first sub-gear and a second sub-gear, the first sub-gear and the second sub-gear are coaxially connected, and the tooth pitch of the first sub-gear is different from that of the second sub-gear; The first sub-gear meshes with the first gear, and the second sub-gear meshes with the second worm.

13. The flipping mechanism as described in claim 11, characterized in that, The flip drive assembly further includes a fifth worm gear, the central axis of which coincides with the central axis of the second gear, and the fifth worm gear meshes with the first gear.

14. A rear-view device, characterized in that, The device includes a main body and a flipping mechanism as described in any one of claims 1-13. The main body is adapted to be connected to a vehicle body. The main body includes a housing and a folding mechanism. The folding mechanism and the flipping drive assembly are disposed within the housing. The folding mechanism is rotatable about the first axis.

15. The rear-view device as claimed in claim 14, characterized in that, The folding mechanism includes a rotating shaft assembly, which includes a folding column, a first kit, and a second kit. The folding column passes through the housing and is connected to the vehicle body. The first axis coincides with the central axis of the folding column. The first kit and the second kit are sleeved on the outside of the folding column. The folding column and the first kit are fixed relative to each other in the axial direction of the folding column, and the folding column and the second kit are fixed relative to each other in the circumferential direction of the folding column. The first kit and the second kit have a separated state and an engaged state. In the separated state, the first kit and the second kit can rotate relative to each other, and the second kit can move relative to the folding column along the axial direction of the folding column. In the engaged state, the first kit, the second kit, and the folding column are fixed relative to each other, and the main body can rotate relative to the rotating shaft assembly.

16. The rear-view device as claimed in claim 15, characterized in that, The first kit is provided with a plurality of first card slots and a plurality of first card blocks, the plurality of first card slots and the plurality of first card blocks being alternately arranged along the inner circumferential surface of the first kit; the second kit is provided with a plurality of second card slots and a plurality of second card blocks, the plurality of second card slots and the plurality of second card blocks being alternately arranged along the inner circumferential surface of the second kit. In the engaged state, the first snap-fit ​​block is located in the second snap-fit ​​groove, and the second snap-fit ​​block is located in the first snap-fit ​​groove; In the separated state, the first latching block abuts against the second latching block.

17. The rear-view device as claimed in claim 16, characterized in that, The second kit is provided with a limiting member, which protrudes toward the central axis of the second kit; The folded column is provided with a limiting groove, and the limiting member is disposed in the limiting groove. The limiting member can move along the limiting groove in the axial direction of the folded column.

18. The rear-view device as claimed in claim 15, characterized in that, The folding mechanism further includes a folding drive assembly, the output end of which is connected to the first kit. The folding drive assembly can drive the folding mechanism to rotate around the rotation axis assembly, and the first kit and the second kit maintain an engaged state. When the folding drive component stops driving and the folding mechanism is rotated, the first kit and the second kit switch between a separated state and an engaged state.

19. The rear-view device as claimed in claim 18, characterized in that, The rotating shaft assembly further includes a first elastic element, which is sleeved on the outside of the folding column and is located on the side of the second assembly away from the first assembly. When switching from the engaged state to the disengaged state, the second component moves away from the first component along the axial direction of the folded column and compresses the first elastic element; When switching from the separated state to the engaged state, the elastic force generated by the first elastic element can push the second kit closer to the first kit along the axial direction of the folded column.

20. The rear-view device as claimed in claim 18, characterized in that, The folding drive assembly includes a folding drive component and a third worm gear. The third worm gear is disposed between the output end of the folding drive component and the first kit. The outer peripheral surface of the first kit has a second meshing tooth, and the third worm gear meshes with the first kit. The folding drive is used to drive the third worm gear to rotate, so that the third worm gear rotates around the first kit, thereby causing the folding mechanism to rotate around the rotating shaft assembly.

21. The rear-view device as claimed in claim 20, characterized in that, The folding drive assembly further includes a third gear, a fourth gear, and a fourth worm gear, wherein the central axis of the third gear coincides with the central axis of the third worm gear; The fourth worm gear is connected to the output end of the folding drive component, the fourth worm gear meshes with the fourth gear, and the third gear is connected to the fourth gear in a transmission connection.

22. The rear-view device as claimed in claim 21, characterized in that, The fourth gear includes a third sub-gear and a fourth sub-gear, the third sub-gear and the fourth sub-gear are coaxially connected, and the tooth pitch of the third sub-gear is different from that of the fourth sub-gear; The third sub-gear meshes with the third gear, and the fourth sub-gear meshes with the fourth worm.

23. The rear-view device as claimed in claim 21, characterized in that, The folding drive assembly also includes a sixth worm gear, the central axis of which coincides with the central axis of the fourth gear, and the sixth worm gear meshes with the third gear.

24. A vehicle, characterized in that, Includes a vehicle body and a rearview device as described in any one of claims 14-23, wherein the rearview device is connected to the vehicle body.

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