Turnover mechanism, rearview equipment and vehicle

Abstract

The invention belongs to the technical field of rearview equipment, and particularly relates to a turnover mechanism, rearview equipment and a vehicle. A turnover mechanism comprises a turnover driving assembly, a turnover piece and a connecting piece. The connecting piece can penetrate through the overturning piece and is connected with the main body part, the connecting piece and the main body part are relatively fixed, and when the main body part rotates around the first axis, the overturning piece and the main body part are relatively fixed; a transmission part is arranged on the turnover part, the turnover driving assembly is in transmission connection with the transmission part, and the turnover driving assembly can drive the transmission part to rotate around the second axis so that the turnover part can rotate relative to the connecting part and the main body part. The turnover driving assembly and the transmission part are always kept in transmission connection through the connecting part, when the turnover part needs to be adjusted, the turnover driving assembly drives the transmission part to rotate around the first axis, the transmission part bears circumferential driving force during rotation, clamping stagnation caused by deviation of the stress direction is avoided, and therefore the fault that the transmission part cannot rotate along with the shaft is reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of rearview devices, in particular to a turnover mechanism, a rearview device and a vehicle. BACKGROUND

[0002] The rearview device is mainly used for the device for the driver to observe the situation behind the vehicle. The rearview device is usually provided with a folding mechanism and a turnover mechanism. The rearview device can be folded to the vehicle body direction through the folding mechanism to reduce the width of the vehicle body. The view angle of the rearview device can be adjusted through the turnover mechanism.

[0003] In the existing rearview device, the turnover mechanism and the folding mechanism are in a rotating connection state, and the turnover mechanism is assembled on a rotating shaft of the folding mechanism through a screw. The rotation of the rotating shaft drives the synchronous movement of the turnover mechanism. This structure has obvious disadvantages: the connection of the screw will be loose due to the bumping during the driving of the vehicle or the vibration generated by the engine. In this way, when the rotating shaft rotates, the turnover mechanism may shake or even cannot rotate with the shaft, and the connection stability of the turnover mechanism is poor. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a turnover mechanism, a rearview device and a vehicle to solve the problem of poor connection stability of the existing turnover mechanism.

[0005] To solve the above technical problems, on the one hand, the present application provides a turnover mechanism suitable for being installed on a main body part of a rearview device. 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 be connected with the 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 first axis intersects with the second axis.

[0006] Optionally, the connecting piece comprises a connecting part and a supporting part. One end of the connecting part is used for connecting the main body part. The supporting part is connected to the end of the connecting part away from the main body part. The supporting part is used for supporting the turnover piece. The supporting part and the turnover piece can relatively rotate.

[0007] Optionally, the turnover piece is provided with a first accommodating cavity and a connecting hole. The connecting hole is in communication with the first accommodating cavity. One end of the main body part along the extension direction of the first axis is arranged in the first accommodating cavity. The connecting portion is arranged in the connecting hole and connected with the main body portion, and the connecting portion is in clearance fit with the connecting hole.

[0008] Optionally, the support portion is provided with a first arc surface, and the turnover member is provided with a second arc surface, and the first arc surface is capable of being attached to the second arc surface. The central axis of the first arc surface coincides with the central axis of the second arc surface, so that the turnover member is capable of rotating relative to the support portion when the turnover driving assembly drives the turnover member to rotate.

[0009] Optionally, the turnover member is provided with a second accommodating cavity, the connecting hole is communicated with the second accommodating cavity, and the support portion is arranged in the second accommodating cavity. The second arc surface is an inner wall surface of the second accommodating cavity.

[0010] Optionally, the support portion comprises an arc-shaped member, a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are both connected to the arc-shaped member, and the first connecting plate and the second connecting plate are arranged in a spaced manner along the central axis direction of the arc-shaped member. The first arc surface is an outer surface of the arc-shaped member.

[0011] Optionally, the support portion is provided with an arc-shaped protrusion, the turnover member is provided with an arc-shaped groove, the arc-shaped protrusion is arranged in the arc-shaped groove, the first arc surface is arranged on the arc-shaped protrusion, and the second arc surface is arranged on the arc-shaped groove. Alternatively, The support portion is provided with an arc-shaped groove, the turnover member is provided with an arc-shaped protrusion, the arc-shaped protrusion is arranged in the arc-shaped groove, the first arc surface is arranged on the arc-shaped groove, and the second arc surface is arranged on the arc-shaped protrusion.

[0012] Optionally, the turnover mechanism further comprises a first detection gear and a turnover potentiometer, the turnover potentiometer is mounted on the main body portion, and the first detection gear is mounted on the turnover potentiometer. The turnover member is provided with an engaging member, the engaging member is located in the first accommodating cavity, and the first detection gear is engaged with the engaging member.

[0013] Optionally, an outer portion of the connecting portion is sleeved with a second elastic member, and the second elastic member is used to provide pre-tightening force for the connection between the turnover member and the main body portion.

[0014] Optionally, a rotating connecting plate is arranged on a side of the turnover member away from the connecting member, and the rotating connecting plate is rotationally connected to the main body portion.

[0015] Optionally, the turnover driving assembly comprises a turnover driving member and a first worm, the first worm is arranged between the output end of the turnover driving member and the transmission member, the transmission member is provided with first meshing teeth, and the first worm is in meshing connection with the transmission member. The turnover driving member can drive the first worm to rotate, thereby driving the transmission member to rotate around the second axis.

[0016] Optionally, the transmission member is a transmission gear, and the central axis of the transmission gear is the second axis.

[0017] Optionally, the turnover driving assembly further comprises a first gear, a second gear and a second worm, the central axis of the first gear coincides with the central axis of the first worm; the second worm is connected to the output end of the turnover driving member, the second worm is in meshing connection with the second gear, and the first gear is in transmission connection with the second gear.

[0018] Optionally, the second gear comprises 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 the tooth pitch of the second sub-gear; the first sub-gear is in meshing connection with the first gear, and the second sub-gear is in meshing connection with the second worm.

[0019] Optionally, the turnover driving assembly further comprises a fifth worm, the central axis of the fifth worm coincides with the central axis of the second gear, and the fifth worm is in meshing connection with the first gear.

[0020] In another aspect, the embodiment of the present application provides a rearview device, comprising a main body part and the turnover mechanism as any one of the preceding embodiments, the main body part is adapted to be connected to a vehicle body, the main body part comprises a housing and a folding mechanism, the folding mechanism and the turnover driving assembly are arranged in the housing, and the folding mechanism can rotate around the first axis.

[0021] Optionally, the folding mechanism comprises a rotating shaft assembly, the rotating shaft assembly comprises a folding column, a first sleeve and a second sleeve, the folding column is arranged in the housing and connected to the vehicle body, and the first axis coincides with the central axis of the folding column. The first sleeve and the second sleeve are arranged outside the folding column, the folding column and the first sleeve are fixed relative to each other in the axial direction of the folding column, and the folding column and the second sleeve are fixed relative to each other in the circumferential direction of the folding column. The first set and the second set have a separation state and an engagement state, in the separation state, the first set and the second set can rotate relative to each other, and the second set can move relative to the folding column along the axial direction of the folding column; in the engagement state, the first set, the second set and the folding column are relatively fixed, and the main body part can rotate relative to the rotating shaft assembly.

[0022] Optionally, the first set is provided with a plurality of first clamping grooves and a plurality of first clamping blocks, the plurality of first clamping grooves and the plurality of first clamping blocks are alternately arranged along the inner circumferential surface of the first set; the second set is provided with a plurality of second clamping grooves and a plurality of second clamping blocks, the plurality of second clamping grooves and the plurality of second clamping blocks are alternately arranged along the inner circumferential surface of the second set; In the engagement state, the first clamping blocks are located in the second clamping grooves, and the second clamping blocks are located in the first clamping grooves; in the separation state, the first clamping blocks abut against the second clamping blocks.

[0023] Optionally, the second set is provided with a limiting piece, the limiting piece protrudes towards the central axis direction of the second set; The folding column is provided with a limiting groove, the limiting piece is arranged in the limiting groove, and the limiting piece can move along the limiting groove in the axial direction of the folding column.

[0024] Optionally, the folding mechanism further comprises a folding driving assembly, an output end of the folding driving assembly is connected to the first set, the folding driving assembly can drive the folding mechanism to rotate around the rotating shaft assembly, and the first set and the second set remain in the engagement state; When the folding driving assembly stops driving and the folding mechanism is rotated, the first set and the second set are switched between the separation state and the engagement state.

[0025] Optionally, the rotating shaft assembly further comprises a first elastic piece, the first elastic piece is sleeved outside the folding column, and the first elastic piece is located on the side of the second set away from the first set; When switched from the engagement state to the separation state, the second set moves away from the first set along the axial direction of the folding column and presses the first elastic piece; when switched from the separation state to the engagement state, the elastic force generated by the first elastic piece can push the second set to move close to the first set along the axial direction of the folding column.

[0026] Optionally, the folding driving assembly comprises a folding driving member and a third worm, the third worm is arranged between the output end of the folding driving member and the first sleeve, the first sleeve is provided with second engaging teeth on the outer circumferential surface, and the third worm is engaged with the first sleeve. The folding driving member is used for driving the third worm to rotate, so that the third worm rotates around the first sleeve, and the folding mechanism rotates around the rotating shaft assembly.

[0027] Optionally, the folding driving assembly further comprises a third gear, a fourth gear and a fourth worm, the central shaft of the third gear is coincident with the central shaft of the third worm; The fourth worm is connected to the output end of the folding driving member, the fourth worm is engaged with the fourth gear, and the third gear is in driving connection with the fourth gear.

[0028] Optionally, the fourth gear comprises a third sub-gear and a fourth sub-gear, the third sub-gear and the fourth sub-gear are coaxially connected, and the pitch of the teeth of the third sub-gear is different from the pitch of the teeth of the fourth sub-gear; The third sub-gear is engaged with the third gear, and the fourth sub-gear is engaged with the fourth worm.

[0029] Optionally, the folding driving assembly further comprises a sixth worm, the central shaft of the sixth worm is coincident with the central shaft of the fourth gear, and the sixth worm is engaged with the third gear.

[0030] In still another aspect, the embodiment of the present application provides a vehicle comprising a vehicle body and the rearview device as any one of the preceding embodiments, the rearview device is connected to the vehicle body.

[0031] In the turning mechanism provided by the embodiment of the present application, the turning member and the main body part are connected through the connecting member, so that the turning member cannot be separated from the main body part, and the turning driving assembly and the transmission member are always in driving connection, when it is necessary to adjust the turning member, the turning driving assembly drives the transmission member to rotate around the first axis, and the turning member connected with the transmission member rotates synchronously, the transmission member is driven in the circumferential direction when rotating, so that the "stuck" caused by the deviation of the force direction is avoided, thereby reducing the failure that the turning member cannot rotate with the shaft. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a schematic view of the main body part provided by an embodiment of the present application; Figure 2 is an exploded view of the main body part provided by an embodiment of the present application; Figure 3 is a schematic view of the connecting member provided by an embodiment of the present application; Figure 4is an assembly schematic diagram of a connecting piece on a main body part provided by an embodiment of the present application; Figure 5 is a cross-sectional view of a main body part provided by an embodiment of the present application; Figure 6 is a schematic diagram of a turnover driving assembly provided by an embodiment of the present application Figure 1 ; Figure 7 is a schematic diagram of a turnover driving assembly provided by an embodiment of the present application Figure 2 ; Figure 8 is an exploded view of a folding column provided by an embodiment of the present application; Figure 9 is a schematic diagram of a first set and a second set provided by an embodiment of the present application; Figure 10 is a schematic diagram of a second set provided by an embodiment of the present application; Figure 11 is a schematic diagram of a folding driving assembly provided by an embodiment of the present application Figure 1 ; Figure 12 is a schematic diagram of a folding driving assembly provided by an embodiment of the present application Figure 2 ; Figure 13 is a schematic diagram of a fifth worm and a sixth worm provided by an embodiment of the present application.

[0033] The reference signs in the specification are as follows: 100, main body part; 10, turnover mechanism; 20, folding mechanism; 30, shell; 11, turnover driving assembly; 111, turnover driving piece; 112, first worm; 113, second worm; 114, first gear; 115, second gear; 1151, first sub-gear; 1152, second sub-gear; 116, fifth worm; 12, turnover piece; 121, transmission piece; 1211, first meshing tooth; 122, meshing piece; 123, first accommodating cavity; 124, connecting hole; 125, second accommodating cavity; 125a, second arc surface; 126, rotation connecting plate; 127, pin shaft; 13, connecting piece; 131, connecting part; 1311, first clamping groove; 132, supporting part; 1321, arc piece; 1321a, first arc surface; 1322, first connecting plate; 1323, second connecting plate; 14, first detection gear; 15, turnover potentiometer; 16, second elastic piece; 21. Folding cylinder; 211. First cylinder; 2111. Limiting groove; 2111a. First axial surface; 212. Second cylinder; 2121. Second clamping groove; 22. First set; 221. First clamping groove; 222. First clamping block; 222a. First abutting surface; 222b. First inclined surface; 223. Second meshing tooth; 23. Second set; 231. Second clamping groove; 232. Second clamping block; 232a. Second abutting surface; 232 b, second inclined surface; 233, stopper; 233a, second axial surface; 234, third meshing tooth; 24, first elastic member; 25, stopper; 26, folding drive assembly; 261, folding drive member; 262, third worm; 263, fourth worm; 264, third gear; 265, fourth gear; 2651, third sub-gear; 2652, fourth sub-gear; 266, sixth worm; 27, second detection gear; 28, folding potentiometer; 31. Upper shell; 32. Lower shell; 321. Connecting groove; 33. Connecting piece; a', first axis; b', second axis. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] like Figures 1 to 13 As shown, a flip mechanism 10 provided by one embodiment of the present invention is suitable for being installed on the main body 100 of a rearview device. The flip mechanism 10 includes a flip drive assembly 11, a flip member 12 and a connecting member 13; the connecting member 13 can pass through the flip member 12 and be connected to the main body 100, and the connecting member 13 is relatively fixed to the main body 100. When the main body 100 rotates around the first axis a', the flip member 12 and the main body 100 remain relatively fixed.

[0036] A transmission member 121 is provided on the flip member 12, and the flip drive assembly 11 is transmission-connected to the transmission member 121. The flip drive assembly 11 can drive the transmission member 121 to rotate around the second axis b', so that the flip member 12 can rotate relative to the connecting member 13 and the main part 100, and the first axis a' intersects the second axis b'.

[0037] In this embodiment, the connection between the turnover part 12 and the main body part 100 is established by the connecting part 13, and the connecting part 13 is relatively fixed with the main body part 100, and the connecting part 13 and the turnover part 12 can relatively rotate. When the main body part 100 rotates, the turnover part 12 can keep relatively static (without relative rotation) with the main body part 100 through the connecting part 13, that is, the turnover part 12 rotates synchronously with the main body part 100. In addition, the turnover driving assembly 11 is connected with the turnover part 12 through the transmission part 121, forming an independent driving link. When the turnover driving assembly 11 starts, the transmission part 121 drives the turnover part 12 to rotate around the second axis b', at this time, the turnover part 12 rotates relative to the connecting part 13 (and the main body part 100), realizing the independent adjustment of the posture of the turnover part 12.

[0038] In this application, the turnover part 12 and the main body part 100 are connected through the connecting part 13, which ensures that the turnover part 12 will not be separated from the main body part 100, and further ensures that the turnover driving assembly 11 and the transmission part 121 always maintain transmission connection. When it is necessary to adjust the turnover part 12, the turnover driving assembly 11 drives the transmission part 121 to rotate around the first axis a', and the turnover part 12 connected with the transmission part 121 rotates synchronously. The transmission part 121 is driven in the circumferential direction when rotating, avoiding "stuck" caused by deviation of the force direction, thereby reducing the failure of not rotating with the shaft.

[0039] In the actual application environment, the rearview device includes a lens, and the lens is installed on the turnover part 12. When the main body part 100 rotates, the turnover part 12 and the lens move together with the main body part 100, which can realize the folding and unfolding of the rearview device. When the turnover part 12 rotates independently, the main body part 100 remains stationary, and the lens rotates, which can realize the adjustment of the viewing angle of the rearview device.

[0040] In an embodiment, as shown in Figure 5 , the first axis a' is perpendicular to the second axis b', wherein the first axis a' is the height direction of the vehicle body, and the second direction is the left-right direction of the vehicle body.

[0041] In an embodiment, as shown in Figure 3 , the connecting part 13 includes a connecting part 131 and a supporting part 132. The connecting part 131 is provided in the turnover part 12, one end of the connecting part 131 is used to connect the main body part 100, and 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 turnover part 12, and the supporting part 132 and the turnover part 12 can relatively rotate.

[0042] One end of the connecting portion 131 is directly formed in a rigid fixed relationship with the main body portion 100, ensuring that the connecting member 13 as a whole has no relative displacement with the main body portion 100, and the supporting portion 132 connected to the other end (the end away from the main body portion 100) of the connecting portion 131 is connected with the turnover member 12, forming a rotatable supporting relationship, which can hold the turnover member 12 to prevent it from separating from the main body portion 100, and will not hinder the independent turnover of the turnover member 12 around the second axis b'.

[0043] In the plane perpendicular to the first axis a', the projection area of the connecting portion 131 is smaller than the projection area of the supporting portion 132, and when the connecting portion 131 passes through the turnover member 12 and connects the main body portion 100, the supporting portion 132 is below the turnover member 12, forming support for the turnover member 12.

[0044] In an embodiment, as shown in Figure 2 The turnover member 12 is provided with a first accommodating cavity 123 and a connecting hole 124, the transmission member 121 is arranged in the first accommodating cavity 123, the connecting hole 124 penetrates the turnover member 12 along a direction parallel to the first axis a', the connecting hole 124 is in communication with the first accommodating cavity 123, and one end of the main body portion 100 extending along the first axis a' is arranged in the first accommodating cavity 123. The connecting portion 131 penetrates the connecting hole 124 and is connected with the main body portion 100, and the connecting portion 131 and the connecting hole 124 are in clearance fit.

[0045] The first accommodating cavity 123 reserves a "nesting space" for the main body portion 100, and when the connecting portion 131 passes through the connecting hole 124, it can enter the first accommodating cavity 123 and be connected with the main body portion 100, which can reduce the space occupation in the direction of the first axis a', and such a structure is also conducive to realizing the synchronous rotation of the turnover member 12 with the main body portion 100.

[0046] The clearance fit between the connecting portion 131 and the connecting hole 124 provides the turnover member 12 with a degree of freedom of rotation, and the connecting hole 124 will not cause motion jamming to the rotation of the turnover member 12. Generally, in the rotation direction of the turnover member 12, when the hole wall of the connecting hole 124 abuts against the connecting portion 131, the turnover member 12 reaches the maximum position of rotation.

[0047] In an embodiment, the connecting portion 131 is columnar and extends along a direction parallel to the first axis a', and preferably, the connecting portion 131 is cylindrical.

[0048] In an embodiment, as shown in Figure 2 The supporting portion 132 is provided with a first arc surface 1321a, and the turnover member 12 is provided with a second arc surface 125a, the first arc surface 1321a can be fitted to the second arc surface 125a, that is, the surfaces of the supporting portion 132 and the turnover member 12 at the contact position are arc surfaces.

[0049] The central axis of the first arc surface 1321 a coincides with the central axis of the second arc surface 125 a , so that when the flip driving assembly 11 drives the flip member 12 to rotate, the flip member 12 can rotate relative to the support portion 132 .

[0050] The first curved surface 1321a and the second curved surface 125a have the same radius of curvature, and their central axes completely overlap. This design ensures that the two form surface contact rather than point / line contact when in contact, and the contact position always remains on the same circumference with the central axis as the center.

[0051] When the flip drive assembly 11 drives the flip member 12 to rotate around the second axis b', the second curved surface 125a of the flip member 12 will slide relative to the first curved surface 1321a with the central axis as the center. Due to the matching curvature and the coincidence of the central axes, the two curved surfaces can always remain in a fit state, so that the contact relationship is not interrupted during the rotation process, that is, the support part 132 can rotate relative to the flip member 12 and maintain the supporting function uninterrupted during the rotation of the flip member 12.

[0052] The central axis of the first curved surface 1321a and the central axis of the second curved surface 125a should coincide with the second axis b'. The central angles of the first curved surface 1321a and the second curved surface 125a should be less than or equal to 90 degrees.

[0053] In one embodiment, if Figure 4 As shown, the flip member 12 is provided with a second accommodating cavity 125, the connecting hole 124 is connected to the second accommodating cavity 125, the first accommodating cavity 123 is connected to the second accommodating cavity 125 through the connecting hole 124, and the support portion 132 is provided in the second accommodating cavity 125. When the connecting portion 131 passes through the connecting hole 124, one end of the connecting portion 131 is located in the first accommodating cavity 123 and is connected to the main body 100, and the other end of the connecting portion 131 is located in the second accommodating cavity 125 and is connected to the support portion 132.

[0054] Among them, the second curved surface 125a is the inner wall surface of the second accommodating cavity 125, and the second accommodating cavity 125 is a curved cavity. The second curved surface 125a wraps the first curved surface 1321a of the support portion 132 to form an annular surface contact. When the flip member 12 rotates around the second axis b', the two curved surfaces slide relative to each other along the circumferential direction and always remain in contact.

[0055] In addition, by accommodating the support portion 132 in the second accommodating cavity 125 , it is possible to support the flip member 12 and reduce the space occupied by the flip mechanism 10 in the direction of the first axis a′.

[0056] In one embodiment, if Figure 3 、 Figure 4As shown, the support portion 132 comprises 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 arranged along the central axis direction of the arc-shaped member 1321, and the first connecting plate 1322 and the second connecting plate 1323 are both rigidly connected (such as welding, one-piece injection molding) to the arc-shaped member 1321, and the two plates together support the arc-shaped member 1321, thereby enhancing the structural rigidity of the arc-shaped member 1321.

[0057] The first arc-shaped surface 1321a is the outer surface of the arc-shaped member 1321, so that the first arc-shaped surface 1321a and the second arc-shaped surface 125a can be in close contact and slide relative to each other in the circumferential direction.

[0058] Preferably, the central angle of the first arc-shaped surface 1321a is approximately equal to the central angle of the second arc-shaped surface 125a, so that when the turnover member 12 rotates around the second axis b', the two arc-shaped surfaces always maintain a large-area close contact state, ensuring the relative position of the turnover member 12 and the main body portion 100 is stable, without relative shaking, which is conducive to realizing the rotation of the turnover member 12 following the main body portion 100, and reducing the following lag.

[0059] In an embodiment, the second accommodating cavity 125 further has a flat surface, which together with the second arc-shaped surface 125a defines the second accommodating cavity 125, and the first connecting plate 1322 is in close contact with the flat surface.

[0060] In other alternative embodiments, the first accommodating cavity 123 is arranged on the support portion 132, and the arc-shaped member 1321 is arranged on the turnover member 12, the arc-shaped member 1321 protrudes towards the support portion 132, and the arc-shaped surface of the arc-shaped member 1321 is in close contact with the arc-shaped surface of the first accommodating cavity 123, which can also realize the support of the turnover member 12 and the independent rotation of the turnover member 12.

[0061] In another embodiment not shown, the support portion 132 is provided with an arc-shaped protrusion, the turnover member 12 is provided with an arc-shaped groove, the arc-shaped protrusion is arranged in the arc-shaped groove, the first arc-shaped surface 1321a is arranged on the arc-shaped protrusion, and the second arc-shaped surface 125a is arranged on the arc-shaped groove. In this case, the arc-shaped protrusion on the support portion 132 is in the shape of a sector, and two arc-shaped protrusions are arranged on the end of the connecting portion 131 away from the main body portion 100, and the two arc-shaped protrusions are arranged opposite to each other in the radial direction of the connecting portion 131, and during the rotation of the turnover member 12 around the second axis b', both arc-shaped protrusions can slide in the arc-shaped groove.

[0062] Alternatively, the support portion 132 is provided with an arc-shaped groove, the turnover piece 12 is provided with an arc-shaped protrusion, the arc-shaped protrusion is arranged in the arc-shaped groove, the first arc-shaped surface 1321a is arranged in the arc-shaped groove, and the second arc-shaped surface 125a is arranged in the arc-shaped protrusion. In this case, the arc-shaped groove is arranged on the arc-shaped piece 1321 of the support portion 132 and is recessed towards the central axis direction of the arc-shaped piece 1321. The arc-shaped protrusion is arranged on the inner wall surface of the second accommodating cavity 125 of the turnover piece 12 and is protruded towards the central axis direction of the arc-shaped piece 1321. During the rotation of the turnover piece 12 around the second axis b', the arc-shaped protrusion can slide in the arc-shaped groove.

[0063] In an embodiment, as shown in Figure 2 、 Figure 6 , the side of the turnover piece 12 away from the connecting piece 13 is provided with a rotating connecting plate 126, and the rotating connecting plate 126 is rotationally connected to the main body portion 100. Through the connection of the rotating connecting plate 126 and the main body portion 100, an additional rotation support point is formed, thereby sharing the weight of the turnover piece 12 and improving the connection stability of the turnover piece 12.

[0064] Further, the main body portion 100 is provided with a connecting groove 321, the rotating connecting plate 126 is arranged in the connecting groove 321, and the rotating connecting plate 126 is connected to the main body portion 100 through a pin shaft 127. When the turnover piece 12 rotates around the second axis b', the rotating connecting plate 126 can rotate around the pin shaft 127, and the central axis of the pin shaft 127 is parallel to the second axis b'.

[0065] 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 and the rotating connecting plate 126 have matched curvatures and coinciding central axes, thereby avoiding affecting the movement of the rotating connecting plate 126.

[0066] In an embodiment, as shown in Figure 2 、 Figure 6 , the turnover driving assembly 11 comprises a turnover driving piece 111 and a first worm 112, the first worm 112 is arranged between the output end of the turnover driving piece 111 and the transmission piece 121, and the driving force of the turnover driving piece 111 can be transmitted to the transmission piece 121 through the first worm 112.

[0067] The transmission piece 121 is provided with first meshing teeth 1211, the first worm 112 is meshed with the transmission piece 121, and the turnover driving piece 111 can drive the first worm 112 to rotate, thereby driving the transmission piece 121 to rotate around the second axis b'.

[0068] When the flip drive 111 is started, it can drive the first worm 112 to rotate around its own axis. The first meshing teeth 1211 on the transmission member 121 mesh with the helical teeth of the first worm 112, and can convert the rotational motion of the first worm 112 into the rotational motion of the transmission member 121 around the second axis b', thereby driving the flip member 12 to rotate. In addition, the worm gear transmission has a reverse self-locking property, that is, only the first worm 112 can drive the transmission member 121, and the transmission member 121 cannot reversely drive the first worm 112. When the flip member 12 rotates to a certain angle, even if the power of the flip drive 111 is withdrawn, the meshing action of the first worm 112 and the transmission member 121 can prevent the transmission member 121 from rotating in the opposite direction due to external force, thereby ensuring that the flip member 12 remains stably in the set position, so that the viewing angle of the rearview device will not be offset due to vehicle bumps or external collisions.

[0069] In one embodiment, the transmission member 121 is a gear or a gear segment. Preferably, in this embodiment, the transmission member 121 is fan-shaped, and the first meshing teeth 1211 are provided on the outer surface of the transmission member 121. The transmission member 121 and the flip member 12 are integrally formed.

[0070] In another embodiment, the transmission member 121 is a circular transmission gear, which is mounted on the flip member. The central axis of the transmission gear is the second axis, which can also engage with the first worm 112 through the transmission gear.

[0071] In one embodiment, the flip driving member 111 is a motor.

[0072] In one embodiment, if Figure 6 As 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 member 111, the second worm 113 meshes with the second gear 115, and the first gear 114 and the second gear 115 are in driving connection.

[0073] The output end of the flip driver 111 is directly connected to the second worm 113, driving its rotation. The second worm 113 forms a primary meshing engagement with the second gear 115, transmitting the rotational motion to the second gear 115. The second gear 115 is in a transmission connection with 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. Therefore, the rotation of the first gear 114 directly drives the synchronous rotation of the first worm 112. The first worm 112 then engages with the first meshing teeth 1211 of the transmission member 121, driving the transmission member 121 and the flip member 12 to rotate about the second axis b', completing the rotation of the flip member 12.

[0074] The second worm 113 and the second gear 115 are perpendicular and staggered in axis. The axis of the second gear 115 is parallel to the axis of the first gear 114, and the second gear 115 and the first gear 114 form parallel axis transmission to realize the conversion of the transmission direction. The second gear 115 and the first gear 114 are both straight gears or bevel gears. If the axis of the second gear 115 is perpendicular to the axis of the first gear 114, a bevel gear can be used to realize the spatial turning.

[0075] In the embodiment, the turnover driving assembly 11 is installed on the main body part 100, and the transmission direction can be flexibly adjusted by setting the first gear 114, the second gear 115, and the second worm 113, so that the installation position of the turnover driving part 111 can be flexibly adjusted, and the structure of the turnover driving assembly 11 is more suitable for the space constraint of the main body part 100.

[0076] As an example, the first gear 114 and the second gear 115 are engaged, at this time, the transmission path of the power is: the second worm 113 transmits the rotary 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.

[0077] In an embodiment, as shown in Figure 7 The first sub-gear 1151 and the second sub-gear 1152 are coaxially connected, the pitch of the first sub-gear 1151 is different from the pitch of the second sub-gear 1152, the first sub-gear 1151 is engaged with the first gear 114, and the second sub-gear 1152 is engaged with the second worm 113. In this case, the second worm 113 transmits the rotary motion to the second sub-gear 1152, the second sub-gear 1152 rotates synchronously with the first sub-gear 1151, and 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.

[0078] In the embodiment, by setting different pitches, the transmission ratio from the second worm 113 to the first gear 114 can be flexibly adjusted when the power is transmitted.

[0079] Preferably, the first sub-gear 1151 has a larger pitch than the second sub-gear 1152, i.e. 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 is adapted to the number of teeth of the first sub-gear 1151. In this way, the speed of the first gear 114 can be increased during the transmission of power from the second worm 113 to the first gear 114 under the same driving force of the turnover driving member 111. During the turnover, the turnover member 12 can be turned over by using a smaller driving force.

[0080] In an embodiment, as shown in Figure 13 The turnover driving assembly 11 further comprises a fifth worm 116, the central axis of which coincides with the central axis of the second gear 115, and the fifth worm 116 meshes with the first gear 114. Under the driving of the turnover driving member 111, the driving member 121 can be driven to rotate around the second axis via the second worm 113, the second gear 115, the fifth worm 116, the first gear 114 and the first worm 112 in sequence, thereby realizing the rotation of the turnover member 12.

[0081] The second worm 113 and the second gear 115 are vertically staggered shaft transmission, the second gear 115 is coaxially connected with the fifth worm 116, and the second gear 115 is located at one end of the fifth worm 116 close to the second worm 113. The fifth worm 116 and the first gear 114 are vertically staggered shaft transmission, and the first gear 114 is connected to one end of the first worm 112.

[0082] By connecting the second gear 115 and the first gear 114 through the fifth worm 116, the setting position of the second gear 115 can be changed, so that the central axis of the second gear 115 can be arranged in a direction parallel to the first axis. In this way, the distance between the first gear 114 and the folding column 21 can be reduced, so that the structure of the main body part in the direction of the second axis is more compact, thereby reducing the overall size of the rearview device in the direction of the second axis.

[0083] In an embodiment, as shown in Figure 2 , Figure 6As shown, the flip mechanism 10 also includes a first detection gear 14 and a flip potentiometer 15. The flip potentiometer 15 is installed in the main body 100 and is connected to the first detection gear 14. A meshing member 122 is provided in the first accommodating cavity 123 of the flip member 12, and the meshing member 122 is engaged with the first detection gear 14. When the flip member 12 rotates around the second axis b', the meshing member 122 rotates with the flip member 12, and can drive the first detection gear 14 to rotate around its own axis. The flip angle change of the flip member 12 is fed back to the circumferential angle change of the flip potentiometer 15 through the meshing member 122 and the first detection gear 14, thereby realizing the detection of the rotation angle of the flip member 12.

[0084] The flip potentiometer 15 is an existing structure, and its principle and structure are not described in detail here.

[0085] On the other hand, Figure 1 As shown, an embodiment of the present invention provides a rearview device, including a main body 100 and a flip mechanism 10 of any of the above embodiments, the main body 100 is suitable for being connected to a vehicle body, the main body 100 includes a shell 30 and a folding mechanism 20, the folding mechanism 20 and the flip driving assembly 11 are arranged in the shell 30, and the folding mechanism 20 can rotate around the first axis a'.

[0086] The flip member 12 can be mounted with functional components such as a lens and a mirror. Driven by the flip drive assembly 11, the flip member 12 independently rotates about the second axis b', enabling fine-tuning of the rearview field of view. For example, the rotation of the flip member 12 can change the lens pitch angle to provide a better view of the ground, or adjust the mirror reflection angle to eliminate glare.

[0087] The folding mechanism 20 can realize the overall folding of the device, thereby reducing the risk of scratches when the vehicle is parked, or reducing the width of the vehicle body when passing through narrow passages, thereby improving traffic safety.

[0088] In one embodiment, if Figure 5 、 Figure 6 As shown, a clamping member 33 is provided in the housing 30, and the clamping member 33 is tightly fitted between the inner wall surface of the housing 30 and the side surface of the engaging member 122. Figure 5 As shown, the second axis b' extends in the left-right direction, and the clip 33 is tightly fitted between the right side wall of the housing 30 and the left side of the engagement member 122. The clip 33 is sleeved onto the exterior of the connecting portion 131. A first slot 1311 is provided at the end of the connecting portion 131 away from the support portion 132. The inner ring of the clip 33 is clipped into the first slot 1311. The clip 33 connects the connecting portion 131 to the housing 30, preventing the connecting portion 131 from separating from the main body 100.

[0089] Preferably, the first slot 1311 is annular.

[0090] In an embodiment, the outer sleeve of the connecting portion 131 is provided with a second elastic member 16, which is used to provide a pre-tightening force for the connection of the turnover member and the main body portion. The second elastic member 16 is pressed between the clamping member 33 and the inner wall surface of the housing 30, as shown in Figure 5 The first axis a' extends in the up-down direction, and the second elastic member 16 is pressed between the lower side of the clamping member 33 and the bottom inner wall surface of the housing 30. The second elastic member 16 provides a stable pre-tightening force through continuous elastic deformation, forming an upward pulling force (in the direction of the first axis a') on the connecting portion 131, thereby firmly pulling the connecting portion 131 and effectively preventing it from loosening or even falling off due to vibration, impact or long-term use, further enhancing the connection reliability of the connecting portion 131 and the main body portion 100, and improving the stability of the turnover member 12. In addition, the second elastic member 16 can also provide elastic buffering to reduce the shaking of the turnover member during the turnover process.

[0091] In an embodiment, the folding mechanism 20 includes a rotating shaft assembly, and the folding mechanism 20 can rotate around the rotating shaft assembly. The rotating shaft assembly can serve as the rotation shaft of the main body portion 100, and can realize the rotation of the folding mechanism 20 around the first axis a'.

[0092] In an embodiment, as shown in Figure 2 , Figure 5 , Figure 8 The rotating shaft assembly includes a folding column 21, a first sleeve 22 and a second sleeve 23. The folding column 21 is hollow, is arranged in the housing 30 and is connected to the vehicle body, the first axis a' coincides with the central axis of the folding column 21, and the folding column 21 is fixed on the vehicle body. The folding column 21 provides a mounting basis for the main body portion 100 mounted on the vehicle body. The folding column 21 and the housing 30 are in clearance fit, and the folding column 21 and the housing 30 rotate relatively when the main body portion 100 rotates.

[0093] The first sleeve 22 is arranged outside the folding column 21, and the folding column 21 and the first sleeve 22 are relatively fixed in the axial direction of the folding column 21, i.e. the first sleeve 22 cannot slide in the axial direction relative to the folding column 21.

[0094] The second sleeve 23 is arranged outside the folding column 21, and the folding column 21 and the second sleeve 23 are relatively fixed in the circumferential direction of the folding column 21, i.e. the second sleeve 23 cannot rotate relative to the folding column 21.

[0095] In the separated state, the first set 22 and the second set 23 can rotate relative to each other, and the second set 23 can move along the folding column 21 in the axial direction of the folding column 21. In this case, the first set 22 and the second set 23 can rotate relative to each other, and the second set 23 can slide along the folding column 21. Since the second set 23 does not rotate relative to the folding column 21, the first set 22 and the folding column 21 can also rotate relative to each other in the separated state.

[0096] In the engaged state, the first set 22, the second set 23, and the folding column 21 are relatively fixed, and the folding mechanism 20 can rotate relative to the rotating shaft assembly. Here, the relative fixation of the first set 22, the second set 23, and the folding column 21 means that the three components do not rotate relative to each other and do not move relative to each other in the axial direction, and the three components form an integral whole. Since the folding column 21 is fixed to the vehicle body, the rotating shaft assembly as a whole remains stationary at this time, and the folding mechanism 20 can rotate with the rotating shaft assembly as the rotation axis.

[0097] In an embodiment, as shown in Figure 8 , Figure 9 The first set 22 is provided with a plurality of first clamping grooves 221 and a plurality of first clamping blocks 222, which are alternately arranged along the inner circumferential surface of the first set 22. The second set 23 is provided with a plurality of second clamping grooves 231 and a plurality of second clamping blocks 232, which are alternately arranged along the inner circumferential surface of the second set 23.

[0098] In the engaged state, the first clamping blocks 222 are located in the second clamping grooves 231, and the second clamping blocks 232 are located in the first clamping grooves 221. In the separated state, the first clamping blocks 222 and the second clamping blocks 232 abut each other.

[0099] In the engaged state, the second set 23 moves along the folding column 21 in the axial direction and approaches the first set 22. At this time, the first clamping blocks 222 are embedded in the second clamping grooves 231, and the second clamping blocks 232 are synchronously embedded in the first clamping grooves 221, forming a concave-convex interlocking structure, and the connection between the two sets is relatively stable.

[0100] In the separated state, the first clamping blocks 222 and the second clamping blocks 232 are arranged relative to each other in the axial direction and abut each other, and the first clamping grooves 221 and the second clamping grooves 231 are arranged relative to each other in the axial direction. At this time, neither the first clamping grooves 221 nor the second clamping grooves 231 is embedded with any component, and the concave-convex interlocking structure is released. At this time, by applying an external force to the first set 22, the relative rotation of the two sets can be achieved.

[0101] In an embodiment, the first clamping blocks 222 and the second clamping blocks 232 are both axially extended along the folding column 21, when the first sleeve 22 and the second sleeve 23 are both sleeved on the folding column 21, in the engaged state, the first clamping blocks 222 are axially inserted into the second clamping grooves 231, and the second clamping blocks 232 are axially inserted into the first clamping grooves 221. By changing the relative position of the first sleeve 22 and the second sleeve 23 in the circumferential direction, the disengaged state can be switched to, so that the first clamping blocks 222 are disengaged from the second clamping grooves 231, and the second clamping blocks 232 are disengaged from the first clamping grooves 221.

[0102] In an embodiment, the shape of the first clamping blocks 222 is matched with the shape of the second clamping grooves 231, and the shape of the second clamping blocks 232 is matched with the shape of the first clamping grooves 221.

[0103] Specifically, as shown in Figure 9 , the first clamping blocks 222 are trapezoidal, and the first clamping blocks 222 are provided with first abutting faces 222a and first inclined faces 222b, the first abutting faces 222a are planar and extend along the radial direction of the first sleeve 22, and the first abutting faces 222a are connected to the first inclined faces 222b. Between two adjacent first clamping blocks 222 is the first clamping groove 221.

[0104] As shown in Figure 9 , Figure 10 , the second clamping blocks 232 are trapezoidal, and the second clamping blocks 232 are provided with second abutting faces 232a and second inclined faces 232b, the second abutting faces 232a are planar and extend along the radial direction of the second sleeve 23, and the second abutting faces 232a are connected to the second inclined faces 232b. Between two adjacent second clamping blocks 232 is the second clamping groove 231.

[0105] In the engaged state, a concave-convex interlocking structure is formed, and the first inclined faces 222b of the first clamping blocks 222 and the inclined faces of the second clamping blocks 232 are in close contact with each other. In this state, when an external force is applied to the first sleeve 22, due to the axial component of the interaction force between the first inclined faces 222b and the second inclined faces 232b, the two have a tendency to separate from each other, and under the condition that the external force is sufficient, the first sleeve 22 and the second sleeve 23 in the engaged state can be separated. In the disengaged state, the first abutting faces 222a of the first clamping blocks 222 and the second abutting faces 232a of the second clamping blocks 232 are in close contact with each other, in this case, the position between the two sleeves is not very stable, and is prone to relative rotation, and can be changed to the engaged state under the external force.

[0106] In an embodiment, as shown in Figure 9 , Figure 10As shown, the second kit 23 is provided with a limiting member 233, which protrudes toward the center axis direction of the second kit 23, and the folding column 21 is provided with a limiting groove 2111, in which the limiting member 233 is arranged. The limiting member 233 can move along the limiting groove 2111 in the axial direction of the folding column 21.

[0107] The limiting groove 2111 extends along the axial direction of the folding cylinder 21. The limiting groove 2111 can limit the movement direction of the limiting member 233, so that the second assembly 23 and the folding cylinder 21 will not rotate relative to each other, but will only move relative to each other in the axial direction.

[0108] Preferably, the limiting member 233 is disposed radially inward of the second clamping block 232. The number of the limiting members 233 may be the same as the number of the second clamping blocks 232, or may be less than the number of the second clamping blocks 232.

[0109] In one embodiment, a plurality of limiting members 233 are provided, and the plurality of limiting members 233 are circumferentially spaced apart on the second sleeve 23. A plurality of limiting grooves 2111 are provided, and the plurality of limiting grooves 2111 are circumferentially spaced apart on the folding column 21. Each limiting member 233 is disposed in a corresponding limiting groove 2111.

[0110] In one embodiment, if Figure 9 As shown, the retaining groove 2111 is provided with a first axial surface 2111a extending axially, and the retaining member 233 is provided with a corresponding second axial surface 233a, and the two are in contact with each other. When an external force acts on the second sleeve 23, the forces acting between the first axial surface 2111a and the second axial surface 233a are equal in magnitude and opposite in direction, completely canceling each other out. Therefore, no matter how much external force is applied, the second sleeve 23 and the foldable column 21 will not rotate relative to each other.

[0111] In one embodiment, if Figure 8 As 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 relatively fixed in the circumferential direction. The limiting groove 2111 is set on the first column 211 .

[0112] In one embodiment, if Figure 2 、 Figure 5 As shown, the folding mechanism 20 further includes a folding drive assembly 26 , the output end of which is connected to the first kit 22 . The folding drive assembly 26 can drive the rotating shaft assembly to rotate, and the first kit 22 and the second kit 23 remain in an engaged state.

[0113] When the folding driving assembly 26 stops and an external force is applied to rotate the rotating shaft assembly, the first set 22 and the second set 23 are switched between the separated state and the engaged state.

[0114] The rearview device has both folding driving assembly 26 adjustment and manual adjustment. When the first set 22 and the second set 23 remain in the engaged state, the first set 22, the second set 23 and the folding column 21 are relatively fixed. When the folding driving assembly 26 is adjusted, the driving force of the folding driving assembly 26 acts on the first set 22, and under the interaction of the two, the folding mechanism 20 rotates around the first set 22 because the first set 22 remains stationary, so that the folding of the rearview device can be realized.

[0115] When manually adjusted, in the engaged state, the shell 30 is pushed by hand, which can make the shell 30 and the folding mechanism 20 in the shell 30 rotate synchronously, and the folding driving assembly 26 moves synchronously. The output end of the folding driving assembly 26 will exert force on the first set 22, and the external force will be transmitted to the second set 23 and the folding column 21, so as to promote the mutual abutment between the first inclined surface 222b and the second inclined surface 232b, and the mutual abutment between the first axial surface 2111a and the second axial surface 233a.

[0116] Because the force between the first inclined surface 222b and the second inclined surface 232b cannot be balanced, the component force in the inclined surface direction will drive the two sets to separate. Because the first set 22 is restricted by the output end of the folding driving assembly 26, the second set 23 finally moves axially and separates from the first set 22, at this time, the first set 22 can move synchronously with the folding driving assembly 26. When the first set 22 continues to rotate to the position where the first clamping block 222 is aligned with the second clamping groove 231, and the second clamping block 232 is aligned with the first clamping groove 221, the second set 23 can be returned. Therefore, in the process of rotating the first set 22 with the shell 30, the second set 23 presents the effect of reciprocating up and down in the axial direction.

[0117] In this embodiment, the movement of the second set 23 in the axial direction provides space for the rotation of the first set 22, avoiding the locking of the second set 23 to the first set 22.

[0118] It should be noted that the axial dimension of the limiting groove 2111 is greater than the stroke of the second set 23, so that the limiting piece 233 does not always separate from the limiting groove 2111 during the axial movement of the second set 23.

[0119] In an embodiment, as Figure 5 , Figure 8As shown, the rotating shaft assembly further comprises a first elastic member 24, the first elastic member 24 is sleeved on the outside of the folding column 21, and the first elastic member 24 is located on the side of the second sleeve 23 away from the first sleeve 22. When switching from the disengaged state to the engaged state, the second sleeve 23 moves away from the first sleeve 22 along the axial direction of the folding column 21 and extrudes 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 sleeve 23 to move towards the first sleeve 22 along the axial direction of the folding column 21. When manually rotating the rearview device, in the process of rotating the first sleeve 22 with the shell 30, when the first abutting surface 222a and the second abutting surface 232a gradually deviate, the second sleeve 23 can be pushed to move towards the first sleeve 22 by the elastic force of the first elastic member 24, so that the first sleeve 22 and the second sleeve 23 can be engaged.

[0120] Preferably, the first elastic member 24 is a spiral spring.

[0121] In an embodiment, one end of the folding column 21 away from the first sleeve 22 is connected with a stopper 25, the stopper 25 is sleeved on the outside of the folding column 21, and the first elastic member 24 is extruded between the second sleeve 23 and the stopper 25.

[0122] Preferably, the second clamping groove 2121 is annular, and the second clamping groove 2121 is arranged on the second column 212.

[0123] In an embodiment, as shown, Figure 11 The folding driving assembly 26 comprises a folding driving member 261 and a third worm 262, the third worm 262 is arranged between the output end of the folding driving member 261 and the first sleeve 22, and the driving force of the folding driving member 261 can be transmitted to the first sleeve 22 through the third worm 262.

[0124] The outer periphery of the first sleeve 22 is provided with second meshing teeth 223, the third worm 262 is engaged with the first sleeve 22, and the folding driving member 261 is used to drive the third worm 262 to rotate, so that the third worm 262 rotates around the first sleeve 22, and further drives the folding mechanism 20 to rotate around the rotating shaft assembly.

[0125] When the folding driving member 261 is started, the third worm 262 can be driven to rotate around its own axis, the second meshing teeth 223 on the first sleeve 22 are engaged with the helical teeth of the third worm 262, since the first sleeve 22 and the folding column 21 remain stationary, the rotational movement of the third worm 262 will be converted into the rotational movement of the third worm 262 around the first sleeve 22, and further drive the folding mechanism 20 to rotate.

[0126] In addition, the engagement between the third worm 262 and the first set 22 has self-locking property. When the rearview device is pushed to rotate, the third worm 262 moves synchronously with the rearview device. Under the engagement between the two, the third worm 262 forces the first set 22 to rotate relative to the folding column 21, and simultaneously drives the second set 23 to move reciprocally along the axial direction.

[0127] In an embodiment, the folding driving member 261 is an electric motor.

[0128] In an embodiment, as shown in Figure 11 The folding driving assembly 26 further comprises 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.

[0129] The fourth worm 263 is connected to the output end of the folding driving member 261. The fourth worm 263 is engaged with the fourth gear 265. The third gear 264 is drivingly connected to the fourth gear 265.

[0130] The output end of the folding driving member 261 is directly connected to the fourth worm 263 to drive it to rotate. The fourth worm 263 is engaged with the fourth gear 265 to transmit the rotary motion to the fourth gear 265. The fourth gear 265 is drivingly connected to the third gear 264 to transmit the power from the fourth gear 265 to the third gear 264. The third gear 264 is coaxially connected to the third worm 262, so that the rotation of the third gear 264 can directly drive the third worm 262 to rotate synchronously. The third worm 262 drives the folding mechanism 20 to rotate around the first axis a’ through the cooperation with the second engagement tooth 223 of the first set 22, thereby completing the unfolding and folding of the rearview device.

[0131] In an example, the third gear 264 is engaged with the fourth gear 265. At this time, the power transmission path is: the fourth worm 263 transmits the rotary 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.

[0132] In an embodiment, as shown in Figure 12As shown, the fourth gear includes a third sub-gear 2651 and a fourth sub-gear 2652, the third sub-gear 2651 is coaxially connected with the fourth sub-gear 2652, the third sub-gear 2651 has a different gear pitch from the fourth sub-gear 2652, the third sub-gear 2651 is engaged with the third gear 264, and the fourth sub-gear 2652 is engaged with the fourth worm. In this case, the fourth worm 263 transmits rotary motion to the fourth sub-gear 2652, the fourth sub-gear 2652 rotates synchronously with the third sub-gear 2651, and 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.

[0133] In this embodiment, by setting different gear pitches, the transmission ratio from the fourth worm 263 to the third gear 264 can be flexibly adjusted.

[0134] Preferably, the third sub-gear 2651 has a larger gear pitch than the fourth sub-gear 2652, i.e., the third sub-gear 2651 has fewer teeth, and the fourth sub-gear 2652 has more teeth. When the third sub-gear 2651 is engaged with the third gear 264, the number of teeth of the third gear 264 is adapted to the number of teeth of the third sub-gear 2651. In this way, during the transmission of power from the fourth worm 263 to the third gear 264, the speed of the third gear 264 can be increased under the same driving force of the folding driving member 261, thereby increasing the rotational speed of the third worm 262. In this way, during folding, only a smaller driving force is required to achieve the folding of the main body part.

[0135] In an embodiment, as shown in Figure 13 The folding driving assembly 26 further includes a sixth worm 266, the central axis of the sixth worm 266 coincides with the central axis of the fourth gear 265, and the sixth worm 266 is engaged with the third gear 264. Under the driving of the folding driving member 261, the main body part can be driven to rotate around the first axis in sequence via the fourth worm 263, the fourth gear 265, the sixth worm 266, the third gear 264, and the third worm 262, thereby achieving the folding of the rearview device.

[0136] Among them, the fourth worm 263 and the fourth gear 265 are vertically staggered shaft transmission, the fourth gear 265 is coaxially connected with the sixth worm 266, and the fourth gear 265 is located at one end of the sixth worm 266 close to the fourth worm 263. The sixth worm 266 and the third gear 264 are vertically staggered shaft transmission, and the third gear 264 is connected to one end of the third worm 262.

[0137] In the embodiment, the sixth worm gear 266 is connected between the fourth gear 265 and the third gear 264, the setting position of the fourth gear 265 can be changed, the central axis of the fourth gear 265 can be arranged in a direction parallel to the first axis, the distance between the third gear 264 and the folding column can be reduced, the structure of the main body part in the second axis direction is more compact, and the size of the rearview device in the second axis direction is reduced.

[0138] In an embodiment, the third engaging teeth 234 are arranged on the outer periphery of the second sleeve 23, the second detection gear 27 and the folding potentiometer 28 are arranged in the shell 30, the folding potentiometer 28 is mounted on the second detection gear 27, and the second sleeve 23 is engaged 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 sleeve 23, and the change of the folding angle of the folding mechanism 20 is fed back to the folding potentiometer 28 as the change of the circumferential angle of the folding potentiometer 28, so that the folding angle of the folding mechanism 20 is detected.

[0139] The folding potentiometer 28 is a prior structure, and its principle and structure will not be described here.

[0140] In an embodiment, as shown in Figure 2 The shell 30 includes an upper shell 31 and a lower shell 32, the upper shell 31 and the lower shell 32 are connected to form an inner cavity, and the folding mechanism 20 and the turnover driving assembly 11 are arranged in the inner cavity. The connecting groove 321 is arranged on the lower shell 32.

[0141] In another aspect, the embodiment of the present application provides a vehicle, which includes a vehicle body and the rearview device of any of the above-mentioned embodiments, and the rearview device is connected to the vehicle body.

[0142] The functional components such as lenses and mirror surfaces can be mounted on the turnover part 12 of the rearview device, the pitch angle of the lenses can be changed by rotating the turnover part 12, the driver can better observe the ground conditions, or the reflection angle of the mirror surface can be switched to eliminate glare. The folding mechanism 20 can realize the folding of the whole rearview device, reduce the risk of scratching when the vehicle is parked, or reduce the width of the vehicle body when passing through a narrow channel, and improve the safety of passing through.

[0143] The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; the modification or replacement does not change the essence of the corresponding technical solutions, and should be included in the protection scope of the present application.

Claims

1. A flip mechanism adapted to be mounted to a main body portion of a rearview device, characterized by, 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 be connected with the main body part, and the connecting piece is relatively fixed with the main body part, and the turnover piece is relatively fixed with the main body part when the main body part rotates around the first axis; The turnover piece is provided with a transmission piece, the turnover driving assembly is in transmission connection with the transmission piece, and the turnover driving assembly can drive the transmission piece to rotate around the second axis, so that the turnover piece can rotate relative to the connecting piece and the main body part, and the first axis intersects with the second axis.

2. The turnover mechanism according to claim 1, wherein The connecting piece comprises a connecting part and a supporting part, one end of the connecting part is used for connecting the main body part, the supporting part is connected to the end of the connecting part away from the main body part, the supporting part is used for supporting the turnover piece, and the supporting part can rotate relative to the turnover piece.

3. The turnover mechanism of claim 2, wherein, The turnover piece is provided with a first accommodating cavity and a connecting hole, the connecting hole is in communication with the first accommodating cavity, and one end of the main body part in the extension direction of the first axis is arranged in the first accommodating cavity; The connecting part passes through the connecting hole and is connected with the main body part, and the connecting part is in clearance fit with the connecting hole.

4. The turnover mechanism of claim 3, wherein, The supporting part is provided with a first arc surface, the turnover piece is provided with a second arc surface, and the first arc surface can be attached to the second arc surface; The central axis of the first arc surface coincides with the central axis of the second arc surface, so that the turnover piece can rotate relative to the supporting part when the turnover driving assembly drives the turnover piece to rotate.

5. The turnover mechanism of claim 4, wherein, The turnover piece is provided with a second accommodating cavity, the connecting hole is in communication with the second accommodating cavity, and the supporting part is arranged in the second accommodating cavity; The second arc surface is an inner wall surface of the second accommodating cavity.

6. The turnover mechanism of claim 4, wherein, The supporting part comprises an arc-shaped piece, a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are connected to the arc-shaped piece, and the first connecting plate and the second connecting plate are arranged in the central axis direction of the arc-shaped piece. The first arc surface is an outer surface of the arc-shaped piece.

7. The turnover mechanism of claim 4 wherein, The supporting part is provided with an arc-shaped protrusion, the turnover piece is provided with an arc-shaped groove, the arc-shaped protrusion is arranged in the arc-shaped groove, the first arc surface is arranged on the arc-shaped protrusion, and the second arc surface is arranged on the arc-shaped groove. Alternatively, The supporting part is provided with an arc-shaped groove, the turnover piece is provided with an arc-shaped protrusion, the arc-shaped protrusion is arranged in the arc-shaped groove, the first arc surface is arranged in the arc-shaped groove, and the second arc surface is arranged in the arc-shaped protrusion.

8. The turnover mechanism of claim 3, wherein, The turnover mechanism further comprises a first detection gear and a turnover potentiometer, the turnover potentiometer is mounted on the main body part, and the first detection gear is mounted on the turnover potentiometer; The turnover piece is provided with an engaging piece, the engaging piece is located in the first accommodating cavity, and the first detection gear is in engagement with the engaging piece.

9. The turnover mechanism of claim 2 wherein, The connecting part is externally sleeved with a second elastic piece, and the second elastic piece is used for providing pre-tightening force for the connection between the turnover piece and the main body part.

10. The turnover mechanism of claim 1, wherein, The turnover part is provided with a rotating connecting plate on the side away from the connecting part, and the rotating connecting plate is rotationally connected to the main body part.

11. The turnover mechanism of claim 1, wherein, The turnover driving assembly comprises a turnover driving part and a first worm, the first worm is arranged between the output end of the turnover driving part and the transmission part, the transmission part is provided with first meshing teeth, and the first worm is in meshing connection with the transmission part. The turnover driving part can drive the first worm to rotate, thereby driving the transmission part to rotate around the second axis.

12. The turnover mechanism of claim 11, wherein, The transmission part is a transmission gear, and the central axis of the transmission gear is the second axis.

13. The turnover mechanism of claim 11, wherein, The turnover driving assembly further comprises a first gear, a second gear and a second worm, the central axis of the first gear coincides with the central axis of the first worm; The second worm is connected to the output end of the turnover driving part, the second worm is in meshing connection with the second gear, and the first gear is in transmission connection with the second gear.

14. The turnover mechanism of claim 13, wherein, The second gear comprises 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 the tooth pitch of the second sub-gear. The first sub-gear is in meshing connection with the first gear, and the second sub-gear is in meshing connection with the second worm.

15. The turnover mechanism of claim 13, wherein, The turnover driving assembly further comprises a fifth worm, the central axis of the fifth worm coincides with the central axis of the second gear, and the fifth worm is in meshing connection with the first gear.

16. A rearview device, characterized in that The main body part is adapted to be connected to a vehicle body, and the main body part comprises a shell and a folding mechanism, the folding mechanism and the turnover driving assembly are arranged in the shell, and the folding mechanism can rotate around the first axis.

17. The rearview device of claim 16, wherein, The folding mechanism comprises a rotating shaft assembly, the rotating shaft assembly comprises a folding column, a first sleeve and a second sleeve, the folding column is arranged in the shell and connected to the vehicle body, and the first axis coincides with the central axis of the folding column. The first sleeve and the second sleeve are arranged outside the folding column, the folding column and the first sleeve are fixed relative to each other in the axial direction of the folding column, and the folding column and the second sleeve are fixed relative to each other in the circumferential direction of the folding column. The first sleeve and the second sleeve have a separation state and an engagement state, in the separation state, the first sleeve and the second sleeve can rotate relative to each other, and the second sleeve can move relative to the folding column along the axial direction of the folding column; in the engagement state, the first sleeve, the second sleeve and the folding column are fixed relative to each other, and the main body part can rotate relative to the rotating shaft assembly.

18. The rearview device of claim 17, wherein, The first sleeve is provided with a plurality of first clamping grooves and a plurality of first clamping blocks, and the plurality of first clamping grooves and the plurality of first clamping blocks are alternately arranged along the inner circumferential surface of the first sleeve; the second sleeve is provided with a plurality of second clamping grooves and a plurality of second clamping blocks, and the plurality of second clamping grooves and the plurality of second clamping blocks are alternately arranged along the inner circumferential surface of the second sleeve. In the engaged state, the first clamping block is located in the second clamping groove, and the second clamping block is located in the first clamping groove; In the disengaged state, the first clamping block abuts against the second clamping block.

19. The rearview device of claim 18, wherein, The second set is provided with a limiting member, which protrudes towards the central axis direction of the second set; The folding column is provided with a limiting groove, and the limiting member is arranged in the limiting groove, and the limiting member can move along the limiting groove in the axial direction of the folding column.

20. The rearview device of claim 17, wherein, The folding mechanism further comprises a folding driving assembly, an output end of the folding driving assembly is connected to the first set, and the folding driving assembly can drive the folding mechanism to rotate around the rotating shaft assembly, and the first set and the second set remain in the engaged state; When the folding driving assembly stops driving and the folding mechanism is rotated, the first set and the second set are switched between the disengaged state and the engaged state.

21. The rearview device of claim 20, wherein, The rotating shaft assembly further comprises a first elastic member, the first elastic member is sleeved outside the folding column, and the first elastic member is located on the side of the second set away from the first set; When switching from the engaged state to the disengaged state, the second set moves away from the first set along the axial direction of the folding column and presses the first elastic member; When switching from the disengaged state to the engaged state, the elastic force generated by the first elastic member can push the second set to move close to the first set along the axial direction of the folding column.

22. The rearview device of claim 20, wherein, The folding driving assembly comprises a folding driving member and a third worm, the third worm is arranged between the output end of the folding driving member and the first set, the first set has a second meshing tooth on the outer periphery, and the third worm is in mesh with the first set; The folding driving member is used to drive the third worm to rotate, so that the third worm rotates around the first set, and then the folding mechanism rotates around the rotating shaft assembly.

23. The rearview device of claim 22, wherein, The folding driving assembly further comprises a third gear, a fourth gear and a fourth worm, the central axis of the third gear coincides with the central axis of the third worm; The fourth worm is connected to the output end of the folding driving member, the fourth worm is in mesh with the fourth gear, and the third gear is in transmission connection with the fourth gear.

24. The rearview device of claim 23, wherein, The fourth gear comprises a third sub-gear and a fourth sub-gear, the third sub-gear and the fourth sub-gear are coaxially connected, and the pitch of the teeth of the third sub-gear is different from the pitch of the teeth of the fourth sub-gear; The third sub-gear is in mesh with the third gear, and the fourth sub-gear is in mesh with the fourth worm.

25. The rearview device of claim 23, wherein, The folding driving assembly further comprises a sixth worm, the central axis of the sixth worm coincides with the central axis of the fourth gear, and the sixth worm is in mesh with the third gear.

26. A vehicle characterized by The rearview device of any one of claims 16-25 is connected to the vehicle body.

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