Turnover mechanism, turnover screen and vehicle

Abstract

The utility model discloses a turnover mechanism, a turnover screen and a vehicle, and the turnover mechanism comprises a rotating shaft; the inner gear is in transmission connection with the rotating shaft; the reduction gear is arranged in the inner gear, the tooth number of the reduction gear is smaller than that of the inner gear, and the reduction gear is meshed with the inner gear; and the driving unit is used for driving the reduction gear to revolve around the axis of the inner gear. According to the turnover mechanism, the power of the driving unit is transmitted to the rotating shaft in the mode that the inner gear and the reduction gear form differential gear matching, transmission loss can be reduced, transmission efficiency can be improved, meanwhile, transmission structures can be reduced, occupied space can be reduced, expensive materials are not needed, cost is lower, and mass production is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is involved in a kind of turnover mechanism, turnover screen and vehicle. BACKGROUND

[0002] With the development of society and the progress of living standards, people's demand for space is also more and more big, whether indoor space or in-vehicle space, hope to be able to be bigger and better, but for vehicles, it is difficult to have a larger in-vehicle space due to the limitation of frame, therefore, it is very important to fully utilize the existing in-vehicle space. A vehicle-mounted turnover mechanism can turn over the screen in the vehicle when in use, and retract when not in use, greatly improving the utilization rate of in-vehicle space. However, the current technology for realizing the related functions is complex, the turnover transmission efficiency is low, and the energy loss is large. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a turnover mechanism, which has high transmission efficiency.

[0004] The utility model further provides a turnover screen, which comprises the above-mentioned turnover mechanism.

[0005] The utility model further provides a vehicle, which comprises the above-mentioned turnover screen.

[0006] According to the turnover mechanism of the utility model embodiment, the power of the driving unit is transmitted to the rotating shaft in the form of the difference-tooth gear cooperation of the inner gear and the reduction gear, which can reduce transmission loss, improve transmission efficiency, reduce transmission structure, reduce occupied space, and does not require expensive materials, so the cost is lower and mass production is facilitated.

[0007] According to the turnover mechanism of the utility model embodiment, the power of the driving unit is transmitted to the rotating shaft in the form of the difference-tooth gear cooperation of the inner gear and the reduction gear, which can reduce transmission loss, improve transmission efficiency, reduce transmission structure, reduce occupied space, and does not require expensive materials, so the cost is lower and mass production is facilitated.

[0008] According to some embodiments of the utility model, further comprising: an eccentric shaft, the reduction gear is rotatably sleeved on the eccentric shaft, the axis of the eccentric shaft is parallel to and spaced apart from the axis of the inner gear, and the driving unit is used to drive the eccentric shaft to rotate around the axis of the inner gear.

[0009] In some embodiments of the utility model, still include: support, the support is set on the eccentric shaft and can move along the first direction, the reduction gear is movably arranged on the support along the second direction, the first direction, the second direction and the axial direction of the internal gear are perpendicular to each other.

[0010] In some embodiments of the utility model, the support has a first clamping groove, the reduction gear has a first clamping pin matched with the first clamping groove on the side of the support, and the first clamping pin is movably arranged in the first clamping groove along the second direction.

[0011] In some embodiments of the utility model, the support has a through hole, the eccentric shaft is arranged in the through hole, the first clamping groove is two spaced apart along the second direction, and the two first clamping grooves are located on the two sides of the through hole and communicate with the through hole, and the first clamping pin is two corresponding to the two first clamping grooves.

[0012] In some embodiments of the utility model, still include: the shell, the internal gear, the reduction gear and the support are located in the shell, the second clamping pin is arranged at both ends of the support along the first direction, the second clamping pin is arranged in the corresponding second clamping groove along the first direction.

[0013] In some embodiments of the utility model, still include: first transmission mechanism, the drive unit is connected with the eccentric shaft through the first transmission mechanism.

[0014] In some embodiments of the utility model, the drive unit is a driving motor, and the first transmission mechanism comprises: a worm, an axial end of the worm is connected with an output shaft of the driving motor; a worm wheel, the worm wheel is engaged with the worm, and an axis of the worm wheel is collinear with an axis of the internal gear, and an end of the eccentric shaft is connected with an axial end of the worm wheel.

[0015] According to some embodiments of the utility model, still include: second transmission mechanism, the internal gear is connected with the rotating shaft through the second transmission mechanism.

[0016] In some embodiments of the utility model, the second transmission mechanism comprises: a driving gear, the driving gear is coaxial with the internal gear and rotates synchronously; a driven gear, the driven gear is fixedly sleeved on the rotating shaft and engaged with the driving gear.

[0017] According to some embodiments of the utility model, still include: first damping device, the first damping device is used to apply damping force to the rotating shaft.

[0018] In some embodiments of the utility model, the turnover mechanism further includes a shell, the internal gear, the reduction gear and part of the rotating shaft are arranged in the shell, the first damping device includes: damping bushing, the damping bushing is sleeved on the rotating shaft and is in interference fit with the rotating shaft, the damping bushing is fixedly connected with the shell.

[0019] According to the utility model embodiment's turnover screen, through setting above -mentioned turnover mechanism, adopt internal gear and reduction gear and form the form of difference tooth gear cooperation to drive unit's power transmission to rotating shaft, can reduce transmission loss, improve transmission efficiency, can reduce transmission structure simultaneously, reduce the occupied space, and need not expensive material, cost is lower, benefit mass production.

[0020] According to the utility model embodiment's turnover screen, through setting above -mentioned turnover mechanism, adopt internal gear and reduction gear and form the form of difference tooth gear cooperation to drive unit's power transmission to rotating shaft, can reduce transmission loss, improve transmission efficiency, can reduce transmission structure simultaneously, reduce the occupied space, and need not expensive material, cost is lower, benefit mass production.

[0021] In some embodiments of the utility model, further include: first clutch device, the first clutch device is arranged between the screen assembly and the rotating shaft, the first clutch device is configured to rotate the screen assembly relative to the rotating shaft when the torque suffered by the screen assembly is greater than the friction between the screen assembly and the rotating shaft.

[0022] In some embodiments of the utility model, the first clutch device includes: positioning ring, the positioning ring is sleeved on the rotating shaft;Connecting sleeve, fixedly connected with the screen assembly, the connecting sleeve is sleeved outside the positioning ring and is in interference fit with the positioning ring.

[0023] In some embodiments of the utility model, a plurality of protrusions are arranged on the outer peripheral wall of the positioning ring.

[0024] In some embodiments of the utility model, a plurality of the protrusions are spaced apart along the circumferential direction of the positioning ring, and each protrusion extends along the axial direction of the positioning ring.

[0025] In some embodiments of the utility model, further include: angle detection mechanism, the angle detection mechanism is used to detect the rotation angle of the screen assembly.

[0026] In some embodiments of the utility model, the angle detection mechanism includes: speed measuring shaft, the speed measuring shaft is connected with the screen assembly and the axis is collinear with the axis of the rotating shaft;Angle sensor, the angle sensor is used to detect the rotation angle of the speed measuring shaft.

[0027] In some embodiments of the utility model, further include: second damping device, the second damping device is used to apply damping force to the speed measuring shaft.

[0028] In some embodiments of the present application, the second clutch device is arranged between the screen assembly and the speed measuring shaft, and the second clutch device is configured to rotate the screen assembly relative to the speed measuring shaft when the torque received by the screen assembly is greater than the friction between the screen assembly and the speed measuring shaft.

[0029] In some embodiments of the present application, the screen assembly comprises a screen body, and a mounting member connected with the screen body, and the rotating shaft is connected with the mounting member.

[0030] According to the vehicle of the present application, the turnover screen is provided, the turnover screen adopts the turnover mechanism, the power of the driving unit is transmitted to the rotating shaft in the form of the internal gear and the reduction gear forming the differential gear cooperation, the transmission loss can be reduced, the transmission efficiency can be improved, the transmission structure can be reduced, the occupied space can be reduced, no expensive material is needed, the cost is lower, and mass production is facilitated.

[0031] According to the vehicle of the present application, the turnover screen is provided, the turnover screen adopts the turnover mechanism, the power of the driving unit is transmitted to the rotating shaft in the form of the internal gear and the reduction gear forming the differential gear cooperation, the transmission loss can be reduced, the transmission efficiency can be improved, the transmission structure can be reduced, the occupied space can be reduced, no expensive material is needed, the cost is lower, and mass production is facilitated.

[0032] In some embodiments of the present application, the turnover mechanism is arranged on the inner top wall of the passenger cabin of the vehicle, the screen assembly has a first state and a second state, in the first state, the screen assembly is attached to the inner top wall of the passenger cabin, and in the second state, the screen assembly and the inner top wall of the passenger cabin form an angle.

[0033] In some embodiments of the present application, the passenger cabin of the vehicle has a control button, and the vehicle has a control module, the control module is connected with the control button and the driving unit.

[0034] Additional aspects and advantages of the present application will be made apparent in the following description, which is given, by way of non-limiting example, with reference to the appended drawings, wherein: BRIEF DESCRIPTION OF DRAWINGS

[0035] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the following drawings, in which:

[0036] Figure 1 is a perspective view of a turnover mechanism according to an embodiment of the present application;

[0037] Figure 2 is a side view of a turnover mechanism according to an embodiment of the present application, wherein part of the housing is not shown;

[0038] Figure 3 is a perspective view of a turnover mechanism according to an embodiment of the present application, wherein the housing is not shown;

[0039] Figure 4 is an exploded view of the turnover mechanism according to an embodiment of the present application;

[0040] Figure 5 is a side view of the worm gear and eccentric shaft of the turnover mechanism according to an embodiment of the present application;

[0041] Figure 6 is a front view of the worm gear and eccentric shaft of the turnover mechanism according to an embodiment of the present application;

[0042] Figure 7 is a perspective view of the reduction gear, worm gear, eccentric shaft and support of the turnover mechanism according to an embodiment of the present application;

[0043] Figure 8 is a perspective view of the reduction gear and support of the turnover mechanism according to an embodiment of the present application;

[0044] Figure 9 is a front view of the reduction gear, eccentric shaft and support of the turnover mechanism according to an embodiment of the present application;

[0045] Figure 10 is a perspective view of the internal gear and driving gear of the turnover mechanism according to an embodiment of the present application;

[0046] Figure 11 is a perspective view of the internal gear, driving gear, reduction gear, worm gear and support of the turnover mechanism according to an embodiment of the present application;

[0047] Figure 12 is a perspective view of the internal gear, driving gear and reduction gear of the turnover mechanism according to an embodiment of the present application;

[0048] Figure 13 is a perspective view of the rotating shaft, driving gear, driven gear, internal gear and reduction gear of the turnover mechanism according to an embodiment of the present application;

[0049] Figure 14 is a perspective view of the rotating shaft and first damping device of the turnover mechanism according to an embodiment of the present application;

[0050] Figure 15 is a perspective view of the rotating shaft and first clutch device of the turnover mechanism according to an embodiment of the present application;

[0051] Figure 16 is a perspective view of the positioning ring of the first clutch device of the turnover mechanism according to an embodiment of the present application;

[0052] Figure 17 is a perspective view of the connecting sleeve of the first clutch device of the turnover mechanism according to an embodiment of the present application;

[0053] Figure 18 is a sectional view of a rotating shaft and a first clutch device of the turnover mechanism according to an embodiment of the present utility model;

[0054] Figure 19 is a perspective view of the turnover screen according to an embodiment of the present utility model;

[0055] Figure 20 is a screen assembly opening logic diagram;

[0056] Figure 21 is a screen assembly infinite adjustment logic diagram.

[0057] Reference signs:

[0058] 100, turnover screen;

[0059] 10, turnover mechanism;

[0060] 101, rotating shaft;

[0061] 102, internal gear; 1021, gear shaft; 1022, copper sleeve;

[0062] 103, reduction gear; 1031, first snap pin;

[0063] 104, drive unit;

[0064] 105, eccentric shaft;

[0065] 106, bracket; 1061, first clamping groove; 1062, through hole; 1063, second snap pin;

[0066] 107, shell; 1071, second clamping groove;

[0067] 108, first transmission mechanism; 1081, worm; 1082, worm gear;

[0068] 109, second transmission mechanism; 1091, driving gear; 1092, driven gear;

[0069] 110, first damping device; 1101, damping bushing;

[0070] 20, screen assembly; 201, screen body; 202, mounting piece;

[0071] 30, first clutch device; 301, positioning ring; 3011, protrusion; 302, connecting sleeve;

[0072] 40, angle detection mechanism. DETAILED DESCRIPTION

[0073] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0074] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0075] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0076] Reference is made below to Figures 1-21 The turnover mechanism 10 according to the embodiments of the present application is described.

[0077] As Figures 1-4 shown, the turnover mechanism 10 according to the embodiments of the present application comprises a rotating shaft 101, an internal gear 102, a reduction gear 103 and a driving unit 104.

[0078] Specifically, the turnover mechanism 10 can be connected with the screen assembly 20 for overturning the screen assembly 20, wherein the screen assembly 20 can be a screen assembly 20 inside a vehicle, and specifically, a rotating shaft 101 of the turnover mechanism 10 can be connected with the screen assembly 20. An internal gear 102 is in transmission connection with the rotating shaft 101, a reduction gear 103 is arranged in the internal gear 102, the reduction gear 103 is in mesh with the internal gear 102, the number of teeth of the reduction gear 103 is less than the number of teeth of the internal gear 102, and part of the teeth of the reduction gear 103 can be in mesh with the internal gear 102. A driving unit 104 is used for driving the reduction gear 103 to revolve around the axis of the internal gear 102.

[0079] When the driving unit 104 drives the reduction gear 103 to revolve, there are always part of the teeth of the reduction gear 103 in mesh with the teeth on the inner wall of the internal gear 102, and the reduction gear 103 can drive the internal gear 102 to rotate in the process of revolving, and the transmission ratio of the reduction gear 103 and the internal gear 102 is large, and the transmission efficiency is high.

[0080] For example, in a specific example, the number of teeth of the reduction gear 103 is less than the number of internal teeth of the internal gear 102, and the number of teeth of the reduction gear 103 and the number of teeth of the internal gear 102 differ by 1, at this time, the reduction gear 103 revolves one circle, and the internal gear 102 rotates by an angle of one internal tooth, thereby the transmission efficiency can be improved. In addition, the reduction gear 103 and the internal gear 102 form two internal meshing difference tooth gears, so that the transmission ratio between the reduction gear 103 and the internal gear 102 is greater than 30, and the conventional gear meshing can only produce a transmission ratio less than 7.

[0081] In the related art, two groups of worm gears are used to achieve the purpose of speed reduction transmission, which has low efficiency, large energy loss, large heat generation and large wear of the worm gears, so that expensive wear-resistant materials need to be selected, resulting in rising costs and being not conducive to mass production.

[0082] In the present application, the internal gear 102 and the reduction gear 103 cooperate to form an internal meshing difference tooth gear, compared with the existing mechanism for realizing speed reduction by using multiple worm gears, when a large transmission ratio is required, the number of gears used is small, the transmission loss is reduced, and the efficiency is improved. At the same time, due to the use of less transmission structure, the size and space volume of the power device can be reduced, the energy density is improved, more in-vehicle space is provided for users, and the vehicle small space mounting demand is met. The utility model has the advantages of high efficiency, low cost and being conducive to mass production

[0083] According to the turnover mechanism 10 of the embodiment of the utility model, the power of the driving unit 104 is transmitted to the rotating shaft 101 in the form of the differential gear cooperation of the internal gear 102 and the reduction gear 103, the transmission loss can be reduced, the transmission efficiency is improved, meanwhile the transmission structure can be reduced, the occupied space is reduced, and the expensive material is not needed, the cost is lower, and the mass production is beneficial.

[0084] In some embodiments of the utility model, as shown in Figures 4-6 The turnover mechanism 10 further includes eccentric shaft 105, and the reduction gear 103 is rotatably sleeved on the eccentric shaft 105, the axis of the eccentric shaft 105 is parallel to the axis of the internal gear 102 and is arranged in a spaced manner, and the driving unit 104 is used to drive the eccentric shaft 105 to rotate around the axis of the internal gear 102.

[0085] In addition, the reduction gear 103 is provided with a thin-wall bushing 1032, and the thin-wall bushing 1032 is sleeved on the eccentric shaft.

[0086] In some embodiments of the utility model, as shown in Figures 7-9 As shown in Figure 3 The turnover mechanism 10 further includes a support 106, the support 106 is sleeved on the eccentric shaft 105 and is movable along a first direction, the reduction gear 103 is movably arranged on the support 106 along a second direction, and the first direction, the second direction and the axial direction of the internal gear 102 are perpendicular to each other. The reduction gear 103 can only move along the second direction on the support 106, and the support 106 can only move along the first direction, and the reduction gear 103 can only translate in a plane perpendicular to the axis direction of the internal gear 102 in combination with the movement of the support 106.

[0087] Further, as shown in Figure 7 And Figure 8As shown in the figure, the bracket 106 has a first clamping slot 1061, the reduction gear 103 has a first clamping pin 1031 on the side of the bracket 106, the first clamping pin 1031 is movably arranged in the first clamping slot 1061 along the second direction. Thus, the first clamping slot 1061 and the first clamping pin 1031 can limit the movement of the reduction gear 103 on the bracket 106 only along the second direction, ensuring the reliability of the bracket 106 and the reduction gear 103.

[0088] Specifically, as shown in the figure, Figure 8 the bracket 106 has a through hole 1062, the eccentric shaft 105 is arranged in the through hole 1062, the first clamping slot 1061 is two first clamping slots 1061 arranged along the second direction, the two first clamping slots 1061 are located on both sides of the through hole 1062 and communicate with the through hole 1062, and the first clamping pin 1031 is two first clamping pins 1031 corresponding to the two first clamping slots 1061. Thus, the reliability of the fixing between the reduction gear 103 and the bracket 106 can be improved, and the reliability of the limiting of the reduction gear 103 can be ensured.

[0089] Optionally, the side surfaces of the two first clamping pins 1031 facing each other are arc-shaped surfaces protruding away from each other, and the diameters of the cylindrical surfaces where the arc-shaped surfaces are located are the same as the diameters of the through hole 1062 and flush with the inner circumferential wall of the through hole 1062.

[0090] In some embodiments of the utility model, as shown in the figure, Figure 2 and Figure 8 the turnover mechanism 10 further includes a shell 107, the inner gear 102, the reduction gear 103 and the bracket 106 are located in the shell 107, the bracket 106 is provided with a second clamping pin 1063 at both ends along the first direction, the shell 107 is provided with a second clamping slot 1071 matched with the plurality of second clamping pins 1063, and the second clamping pin 1063 is movably arranged in the corresponding second clamping slot 1071 along the first direction. Thus, the second clamping pin 1063 and the second clamping slot 1071 can limit the movement of the bracket 106 in the shell 107 along the first direction, ensuring the reliability of the movement of the bracket 106.

[0091] Further, as shown in the figure, Figure 8 and Figure 9 the bracket 106 is provided with a plurality of second clamping pins 1063 at the same end along the first direction, the plurality of second clamping pins 1063 are arranged along the second direction, and correspondingly, the shell 107 is provided with a plurality of second clamping slots 1071 matched with the plurality of second clamping pins 1063 on the same side of the bracket 106 along the first direction. In addition, the second clamping pins 1063 on both sides of the bracket 106 along the first direction are asymmetrically arranged, so that the foolproofness can be realized.

[0092] In Figure 9In the shown example, the support 106 is provided with two second catches 1063 at each end in the first direction, the two second catches 1063 at each end in the second direction are arranged in parallel in the second direction, and the two second catches 1063 at the other end in the second direction are arranged in staggered manner in the second direction.

[0093] In some embodiments of the utility model, as shown in Figure 3 and Figure 4 As shown, the turnover mechanism 10 further comprises a first transmission mechanism 108, and the driving unit 104 is in transmission connection with the eccentric shaft 105 through the first transmission mechanism 108.

[0094] Further, as shown in Figure 3 and Figure 4 The driving unit 104 is a driving motor, the first transmission mechanism 108 comprises a worm 1081 and a worm wheel 1082, an axial end of the worm 1081 is connected with an output shaft of the driving motor, the worm wheel 1082 is in engagement with the worm 1081, an axis of the worm wheel 1082 is in line with an axis of the internal gear 102, one end of the eccentric shaft 105 is connected with an axial end of the worm wheel 1082, and an axis of the eccentric shaft 105 is parallel to and spaced from the axis of the worm wheel 1082. The driving unit 104 drives the worm 1081 to rotate, the worm 1081 drives the worm wheel 1082 to rotate through the engagement with the worm wheel 1082, the worm wheel 1082 drives the eccentric shaft 105 to rotate around the axis of the worm wheel 1082, and the worm wheel 1082 transmits power to the speed reducer 103 when rotating. The speed reducer 103 drives the internal gear 102 to rotate at a reduced speed relative to the worm wheel 1082 in a way that the speed reducer 103 revolves around the rotation axis of the worm wheel 1082, and the efficiency is greater than that of the worm and gear speed reducer. The worm wheel 1082 and the worm 1081 form a group, and the worm wheel 1082 and the worm 1081 do not need a large reduction ratio based on the arrangement of the internal gear 102 and the speed reducer 103, which improves the transmission efficiency, reduces the abrasion, and solves the problems of low efficiency, high cost, large abrasion and large heat generation caused by the cooperation of multiple worm wheels 1082 and worms 1081.

[0095] Optionally, the worm wheel 1082 and the internal gear 102 are sleeved on the same gear shaft 1021, and the worm wheel 1082 is in smooth connection with the gear shaft 1021 and can rotate smoothly around the gear shaft 1021.

[0096] In some embodiments of the utility model, as shown in Figure 3 and Figure 4As shown, the turnover mechanism 10 further comprises a second transmission mechanism 109, the inner gear 102 is in transmission connection with the rotating shaft 101 through the second transmission mechanism 109.

[0097] Specifically, as shown in Figure 3 and Figure 4 shown, in combination Figures 10-13 , the second transmission mechanism 109 comprises a driving gear 1091 and a driven gear 1092, the driving gear 1091 is coaxial and synchronous with the inner gear 102, for example, the driving gear 1091 and the inner gear 102 are both fixedly sleeved on the gear shaft 1021, the rotating speed of the driving gear 1091 is the same as that of the inner gear 102, the driven gear 1092 is fixedly sleeved on the rotating shaft 101 and is in meshing with the driving gear 1091. The power of the inner gear 102 is transmitted to the driving gear 1091 through the gear shaft 1021, the driving gear 1091 transmits the power to the driven gear 1092 through the meshing with the driven gear 1092, and then transmits the power to the rotating shaft 101. Among them, the driven gear 1092 is connected with the rotating shaft 101 through the key, and the power is transmitted to the rotating shaft 101 through the rigid fit.

[0098] In some embodiments of the utility model, as shown in Figure 4 , both ends of the gear shaft 1021 are provided with copper bushings 1022, the copper bushings 1022 are arranged on the shell 107, and the gear shaft 1021 is rotatable relative to the copper bushings 1022.

[0099] In some embodiments of the utility model, as shown in Figure 14 , the turnover mechanism 10 further comprises a first damping device 110, and the first damping device 110 is used for applying damping force to the rotating shaft 101. When the rotating shaft 101 rotates, it must first overcome the resistance of the first damping device 110, which can eliminate the screen shaking caused by the gear clearance and improve the user experience.

[0100] Specifically, in the gear transmission, there is a small point gap between the gears and between the worm wheel 1082 and the worm 1081, and in the transmission system, these gaps will be superimposed, when the force generated by the vehicle shaking acts on the screen assembly 20, due to the existence of the gap, the rotating shaft 101 of the screen assembly 20 will produce a small rotation, when the displacement of this rotation is transmitted to the end of the screen assembly 20 and is enlarged, reaching the displacement range that can be perceived by the naked eye of the passenger, affecting the viewing experience of the passenger, and also causing car sickness, due to the existence of the first damping device 110, when the rotating shaft 101 rotates, it must first overcome the maximum reverse resistance that the first damping device 110 can provide, which is greater than the force acting on the screen assembly 20 when the vehicle shakes on the bumpy road, so as to ensure that the screen assembly 20 will not shake.

[0101] In some embodiments of the utility model, as shown in Figure 14 The first damping device 110 includes a damping bushing 1101, the damping bushing 1101 is sleeved on the rotating shaft 101 and is in interference fit with the rotating shaft 101, and the damping bushing 1101 is fixedly connected with the housing 107.When the rotating shaft 101 rotates, the damping force between the damping bushing 1101 and the rotating shaft 101 provides resistance to the rotation of the rotating shaft 101.

[0102] The housing 107 can be provided with a mounting hole, the damping bushing 1101 can be located in the mounting hole, a protruding portion 1102 is provided on the outer peripheral wall of the damping bushing 1101, a recessed portion that cooperates with the protruding portion 1102 can be provided on the inner peripheral wall of the mounting hole, and the cooperation of the protruding portion 1102 and the recessed portion can limit the vibration of the damping bushing 1101 relative to the housing 107, thereby better providing the damping force for the rotating shaft 101.

[0103] Further, the protruding portion 1102 is a plurality of protruding portions spaced apart along the circumferential direction of the damping bushing 1101, and the recessed portion is a plurality of recessed portions corresponding to the plurality of protruding portions 1102. Each protruding portion 1102 extends along the axial direction of the damping bushing 1101.

[0104] The following describes a flip screen 100 according to an embodiment of the utility model.

[0105] As shown in Figure 19 The flip screen 100 according to the embodiment of the utility model includes the flip mechanism 10 and the screen assembly 20 described above.

[0106] Specifically, the flip mechanism 10 includes the rotating shaft 101, the screen assembly 20 is connected with the rotating shaft 101, the driving unit 104 drives the rotating shaft 101 to rotate, the rotating shaft 101 drives the screen assembly 20 to rotate, thereby realizing the flip of the screen assembly 20. In addition, as shown in Figure 2 and Figure 3 The end of the rotating shaft 101 away from the screen assembly 20 is provided with a copper sleeve 1022, the copper sleeve 1022 is arranged on the housing 107, and the rotating shaft 101 is rotationally connected with the copper sleeve 1022.

[0107] According to the flip screen 100 of the embodiment of the utility model, by arranging the flip mechanism 10 described above, the power of the driving unit 104 is transmitted to the rotating shaft 101 in the form of the differential gear cooperation of the internal gear 102 and the reduction gear 103, which can reduce transmission loss, improve transmission efficiency, reduce transmission structure, reduce the occupied space, and does not need expensive materials, thereby reducing the cost and being conducive to mass production.

[0108] In some embodiments of the present application, as shown in Figures 15-18 , in combination with Figure 3 , the screen 100 also includes a first clutch device 30, which is arranged between the screen assembly 20 and the rotating shaft 101. The first clutch device 30 is configured to rotate the screen assembly 20 relative to the rotating shaft 101 when the torque received by the screen assembly 20 is greater than the friction between the screen assembly 20 and the rotating shaft 101. The first clutch device 30 allows the screen assembly 20 to rotate in the direction of force when it is subjected to a large impact, thereby protecting the occupant and the screen.

[0109] In related technologies, the turnover mechanism can only realize a single turnover function. The screen is rigidly connected to the power output shaft, and the screen is easily damaged when it is hit by the person inside the vehicle in the open state, which can injure the occupant. The first clutch device 30 of the present application can meet the demand of power transmission from the driving unit 104 to the screen assembly 20 in normal operating conditions, so that the screen assembly 20 can normally turn over. At the same time, when subjected to external impact, the clutch is disengaged, so that the screen assembly 20 is in a free state and will not cause damage to the passenger.

[0110] In some embodiments of the present application, as shown in Figures 15-18 , the first clutch device 30 includes a positioning ring 301 and a connecting sleeve 302. The positioning ring 301 is sleeved on the rotating shaft 101, and the connecting sleeve 302 is fixedly connected with the screen assembly 20. The connecting sleeve 302 is sleeved outside the positioning ring 301 and is in interference fit with the positioning ring 301. The positioning ring 301 can be tightly connected with the rotating shaft 101. The connecting sleeve 302 and the positioning ring 301 have a friction force. When the torque received by the screen assembly 20 is greater than the friction force between the connecting sleeve 302 and the positioning ring 301, the screen assembly 20 rotates in the direction of force relative to the rotating shaft 101, thereby protecting the occupant and the screen.

[0111] Optionally, the positioning ring 301 is made of a metal with elasticity.

[0112] Optionally, the connecting sleeve 302 is a steel sleeve.

[0113] Optionally, the screen assembly 20 is connected with the connecting sleeve 302 through a key, and they are rigidly matched. In the example shown in Figure 17 , the outer contour of the cross section of the connecting sleeve 302 is a non-circular polygon, and the screen assembly 20 has a non-circular polygon hole corresponding to the connecting sleeve 302.

[0114] In some embodiments of the utility model, the outer peripheral wall of positioning ring 301 is provided with a plurality of protrusions 3011. Each protrusion 3011 is equivalent to a spring, positioning ring 301 is sleeved into connecting sleeve 302 with interference fit, connecting sleeve 302 extrudes each protrusion 3011, and elastic deformation is generated, so that compression force is provided, and the minimum friction torque that the compression force can provide is greater than the maximum torque required for driving screen assembly 20 to rotate, so that stable power transmission and normal operation of the screen are ensured.

[0115] When the torque received by screen assembly 20 is greater than the maximum reverse friction torque that the compression force generated by the elastic deformation of positioning ring 301 can provide, connecting sleeve 302 and positioning ring 301 rotate relative to each other, so that screen assembly 20 can rotate in the direction of the external force, and the effect of clutching is achieved.

[0116] Further, as shown in Figure 16 , a plurality of protrusions 3011 are spaced apart along the circumferential direction of positioning ring 301, and each protrusion 3011 extends along the axial direction of positioning ring 301. In this way, the friction between connecting sleeve 302 and positioning ring 301 can be more uniform.

[0117] In some embodiments of the utility model, as shown in Figure 14 and Figure 17 , positioning ring 301 and damping bush 1101 are arranged along the axial direction of rotating shaft 101, driven gear 1092 and positioning ring 301 are respectively located on both sides of damping bush 1101 along the axial direction of rotating shaft 101, driven gear 1092 and positioning ring 301 are respectively arranged at both ends of rotating shaft 101 along the axial direction, and damping bush 1101 is arranged at the middle section of rotating shaft 101.

[0118] In some embodiments of the utility model, as shown in Figure 19 , the turnover screen 100 further includes an angle detection mechanism 40, and the angle detection mechanism 40 is used for detecting the rotation angle of the screen assembly 20. When the turnover screen 100 is arranged on the inner top wall of the vehicle, the angle detection mechanism 40 can be arranged on the inner top wall of the vehicle, for example, the angle detection mechanism 40 is fixed on the roof by bolts.

[0119] The angle detection mechanism 40 can monitor the turnover angle of the screen assembly 20 in real time, and cooperate with the driving unit 104 to realize accurate control of the position of the screen assembly 20. The occupant can control the driving unit 104 to drive the screen assembly 20 to rotate by any angle and hover by touching the touch button on the screen assembly 20, so as to realize stepless adjustment of the turnover angle of the screen assembly 20.

[0120] In the related art, the turnover mechanism can only turn the screen to a specific angle, while the viewing angle of the passenger in the vehicle is variable. In the present application, the position of the screen assembly 20 can be fed back to the driving unit 104 in real time through the angle detection mechanism 40, and the screen assembly 20 is in the best viewing position through the forward and reverse rotation adjustment of the driving unit 104. The utility model can provide the best viewing experience for the passenger at any viewing angle, greatly improving the user experience.

[0121] When the user needs to open the screen, the driving unit 104 drives the screen assembly 20 to rotate, as shown in Figure 20 The angle detection mechanism 40 detects the initial position of the screen assembly 20 turned to the open state, and sends a signal to stop the driving unit 104, ensuring accurate control of the turning position of the screen assembly 20.

[0122] As shown in Figure 21 The user can press the forward or reverse touch key on the screen assembly 20 to send a signal to the driving unit 104, and the angle detection mechanism 40 detects that the screen assembly 20 has not rotated to the limit position, and the driving unit 104 drives the screen assembly 20 to rotate in the target direction. When the button is released or the angle detection mechanism 40 detects that the screen assembly 20 has rotated to the limit position, a signal is sent to the driving unit 104, the driving unit 104 is powered off, and the screen assembly 20 can be suspended at any angle.

[0123] In some embodiments of the present application, the angle detection mechanism 40 includes a speed measuring shaft and an angle sensor, the speed measuring shaft is connected with the screen assembly 20 and the axis is collinear with the axis of the rotating shaft 101, and the speed measuring shaft is also rotatably connected to the top of the vehicle. The angle sensor is used to detect the rotation angle of the speed measuring shaft. Thus, the rotation angle of the screen assembly 20 can be easily detected.

[0124] Optionally, as shown in Figure 19 The angle detection mechanism 40 and the turnover mechanism 10 are arranged on opposite sides of the screen assembly 20.

[0125] In some embodiments of the present application, the turnover screen 100 further comprises a second damping device, and the second damping device is used to apply a damping force to the speed measuring shaft. When the speed measuring shaft rotates, it must first overcome the resistance of the second damping device, which can eliminate the screen shaking caused by the gear gap and improve the user experience.

[0126] It should be noted that in the present application, only the first damping device 110 can be provided, only the second damping device can be provided, or the first damping device 110 and the second damping device can be provided at the same time.

[0127] In addition, the structure of the second damping device can be the same as that of the first damping device 110, and the second damping device also comprises a damping sleeve 1101, the damping sleeve 1101 is sleeved on the speed measuring shaft and is in interference fit with the speed measuring shaft, and the damping sleeve 1101 is connected with the shell 107. When the rotating shaft 101 rotates, the damping force between the damping sleeve 1101 and the speed measuring shaft provides resistance to the rotation of the rotating shaft 101. The damping sleeve 1101 of the second damping device and the damping sleeve 1101 of the first damping device 110 are the same in structure.

[0128] In some embodiments of the utility model, the screen 100 also comprises a second clutch device, the second clutch device is arranged between the screen assembly 20 and the speed measuring shaft, and the second clutch device is configured to rotate the screen assembly 20 relative to the speed measuring shaft when the torque borne by the screen assembly 20 is greater than the friction force between the screen assembly 20 and the speed measuring shaft. When the screen assembly 20 is subjected to a large force impact, the second clutch device can rotate in the force direction, thereby protecting the passenger and the screen.

[0129] The structure of the second clutch device can be the same as that of the first clutch device 30. The second clutch device comprises a positioning ring 301 and a connecting sleeve 302, the positioning ring 301 is sleeved on the speed measuring shaft, the connecting sleeve 302 is fixedly connected with the screen assembly 20, and the connecting sleeve 302 is sleeved outside the positioning ring 301 and is in interference fit with the positioning ring 301. The positioning ring 301 can be tightly connected with the speed measuring shaft. The connecting sleeve 302 and the positioning ring 301 have a friction force, and when the torque borne by the screen assembly 20 is greater than the friction force between the connecting sleeve 302 and the positioning ring 301, the screen assembly 20 rotates in the force direction relative to the speed measuring shaft, thereby protecting the passenger and the screen.

[0130] It should be noted that, in the present application, only the first clutch device 30 can be arranged, only the second clutch device can be arranged, or both the first clutch device 30 and the second clutch device can be arranged.

[0131] In addition, the structure of the positioning ring 301 of the second clutch device is the same as that of the positioning ring 301 of the first clutch device 30, and the structure of the connecting sleeve 302 of the second clutch device is the same as that of the connecting sleeve 302 of the first clutch device 30.

[0132] In some embodiments of the utility model, as shown in Figure 13 and Figure 19 The screen assembly 20 comprises a screen body 201 and a mounting piece 202, the mounting piece 202 is connected with the screen body 201, and the rotating shaft 101 and the speed measuring shaft are connected with the mounting piece 202. Therefore, the connection between the rotating shaft 101, the speed measuring shaft and the screen assembly 20 is facilitated.

[0133] Optionally, the screen body 201 and the mounting member 202 are connected by fasteners, so that the reliability of the connection between the screen body 201 and the mounting member 202 can be improved.

[0134] Optionally, one of the screen body 201 and the mounting member 202 is provided with a positioning column, and the other is provided with a positioning hole matched with the positioning column.

[0135] In summary, the utility model can provide a turnover mechanism 10 and a turnover screen 100 with overload protection, stepless adjustment and anti-shake functions.

[0136] A vehicle according to an embodiment of the utility model will be described below.

[0137] The vehicle according to an embodiment of the utility model comprises the turnover screen 100 described above.

[0138] According to the vehicle of the utility model, the turnover screen 100 is provided, the turnover screen 100 adopts the turnover mechanism 10, the power of the driving unit 104 is transmitted to the rotating shaft 101 in the form of the differential gear meshing of the internal gear 102 and the reduction gear 103, the transmission loss can be reduced, the transmission efficiency can be improved, the transmission structure can be reduced, the occupied space can be reduced, expensive materials are not needed, the cost is lower, and mass production is facilitated.

[0139] In some embodiments of the utility model, the turnover mechanism 10 is arranged on the inner top wall of the passenger compartment of the vehicle, the screen assembly 20 has a first state and a second state, in the first state, the screen assembly 20 is attached to the inner top wall of the passenger compartment, and in the second state, the screen assembly 20 and the inner top wall of the passenger compartment form an angle. When the user uses the screen assembly 20, the screen assembly 20 can be switched to the second state and the corresponding angle can be adjusted according to the needs, which is convenient for the user to use, and when the user does not use it, the screen assembly 20 can be switched to the first state, which is convenient for the storage of the screen assembly 20 and saves the internal space of the vehicle.

[0140] In some embodiments of the utility model, the passenger compartment of the vehicle has a control button, the vehicle has a control module, and the control module is connected with the control button and the driving unit 104. Thus, the user can adjust the screen assembly 20 through the control button, which is convenient for the user to use.

[0141] Other configurations and operations of the vehicle according to the embodiments of the utility model are known to those skilled in the art, and will not be described in detail here.

[0142] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0143] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A flipping mechanism, characterized in that, include: Rotating shaft (101); An internal gear (102) is connected to the rotating shaft (101) in a transmission manner; A reduction gear (103) is disposed inside the internal gear (102), the number of teeth of the reduction gear (103) is less than the number of teeth of the internal gear (102), and the reduction gear (103) meshes with the internal gear (102); The drive unit (104) is used to drive the reduction gear (103) to revolve around the axis of the internal gear (102).

2. The flipping mechanism according to claim 1, characterized in that, Also includes: An eccentric shaft (105) is provided, and the reduction gear (103) is rotatably mounted on the eccentric shaft (105). The axis of the eccentric shaft (105) is parallel to and spaced apart from the axis of the internal gear (102). The driving unit (104) is used to drive the eccentric shaft (105) to rotate around the axis of the internal gear (102).

3. The flipping mechanism according to claim 2, characterized in that, Also includes: A bracket (106) is sleeved on the eccentric shaft (105) and movable along a first direction. A reduction gear (103) is movably disposed on the bracket (106) along a second direction. The first direction, the second direction and the axis of the internal gear (102) are perpendicular to each other.

4. The flipping mechanism according to claim 3, characterized in that, The bracket (106) has a first slot (1061), and the reduction gear (103) has a first locking pin (1031) on the side facing the bracket (106) that cooperates with the first slot (1061). The first locking pin (1031) is movably disposed in the first slot (1061) along the second direction.

5. The flipping mechanism according to claim 4, characterized in that, The bracket (106) has a through hole (1062), the eccentric shaft (105) passes through the through hole (1062), the first slot (1061) is two slots spaced apart along the second direction, the two first slots (1061) are respectively located on both sides of the through hole (1062) and communicate with the through hole (1062), and the first pin (1031) is two slots (1061) corresponding to the two first slots (1061).

6. The flipping mechanism according to claim 3, characterized in that, Also includes: The housing (107) contains the internal gear (102), the reduction gear (103), and the bracket (106). The bracket (106) has second locking pins (1063) at both ends along the first direction. The housing (107) has second slots (1071) that cooperate with the multiple second locking pins (1063). The second locking pins (1063) are movably disposed in the corresponding second slots (1071) along the first direction.

7. The flipping mechanism according to claim 2, characterized in that, Also includes: The first transmission mechanism (108) is used to drive the drive unit (104) to the eccentric shaft (105).

8. The flipping mechanism according to claim 7, characterized in that, The drive unit (104) is a drive motor, and the first transmission mechanism (108) includes: A worm gear (1081), one axial end of which is connected to the output shaft of the drive motor: A worm gear (1082) meshes with the worm (1081), the axis of the worm gear (1082) is collinear with the axis of the internal gear (102), and one end of the eccentric shaft (105) is connected to one axial end of the worm gear (1082).

9. The flipping mechanism according to claim 1, characterized in that, Also includes: The second transmission mechanism (109) is used to drive the internal gear (102) to the rotating shaft (101).

10. The flipping mechanism according to claim 9, characterized in that, The second transmission mechanism (109) includes: A drive gear (1091) is coaxial with and rotates synchronously with the internal gear (102); Driven gear (1092) is sleeved and fixed on the rotating shaft (101) and meshes with the driving gear (1091).

11. The flipping mechanism according to claim 1, characterized in that, Also includes: A first damping device (110) is used to apply a damping force to the rotating shaft (101).

12. The flipping mechanism according to claim 11, characterized in that, The flipping mechanism (10) further includes a housing (107), and portions of the internal gear (102), the reduction gear (103), and the rotating shaft (101) are disposed within the housing (107). The first damping device (110) includes: Damping bushing (1101), the damping bushing (1101) is sleeved on the rotating shaft (101) and is interference-fitted with the rotating shaft (101), the damping bushing (1101) is fixedly connected to the housing (107).

13. A flip screen, characterized in that, include: The flipping mechanism (10) according to any one of claims 1-12; A screen assembly (20) is connected to the rotation axis (101).

14. The flip screen according to claim 13, characterized in that, Also includes: A first clutch device (30) is disposed between the screen assembly (20) and the rotating shaft (101). The first clutch device (30) is configured such that when the torque on the screen assembly (20) is greater than the frictional force between the screen assembly (20) and the rotating shaft (101), the screen assembly (20) rotates relative to the rotating shaft (101).

15. The flip screen according to claim 14, characterized in that, The first clutch device (30) includes: A positioning ring (301) is sleeved on the rotating shaft (101); The connecting sleeve (302) is fixedly connected to the screen assembly (20). The connecting sleeve (302) is sleeved outside the positioning ring (301) and is interference-fitted with the positioning ring (301).

16. The flip screen according to claim 15, characterized in that, The outer peripheral wall of the positioning ring (301) is provided with a plurality of protrusions (3011).

17. The flip screen according to claim 16, characterized in that, The plurality of protrusions (3011) are spaced apart along the circumferential direction of the positioning ring (301), and each of the protrusions (3011) extends along the axial direction of the positioning ring (301).

18. The flip screen according to claim 13, characterized in that, Also includes: An angle detection mechanism (40) is used to detect the rotation angle of the screen assembly (20).

19. The flip screen according to claim 18, characterized in that, The angle detection mechanism (40) includes: A speed measuring shaft, which is connected to the screen assembly (20) and whose axis is collinear with the axis of the rotation shaft (101); An angle sensor is used to detect the rotation angle of the speed measuring shaft.

20. The flip screen according to claim 19, characterized in that, Also includes: A second damping device is used to apply a damping force to the velocity measuring shaft.

21. The flip screen according to claim 19, characterized in that, Also includes: A second clutch device is disposed between the screen assembly (20) and the speed measuring shaft. The second clutch device is configured such that when the torque on the screen assembly (20) is greater than the frictional force between the screen assembly (20) and the speed measuring shaft, the screen assembly (20) rotates relative to the speed measuring shaft.

22. The flip screen according to claim 13, characterized in that, The screen assembly (20) includes: Screen body (201); Mounting component (202) is connected to the screen body (201), and the rotating shaft (101) is connected to the mounting component (202).

23. A vehicle, characterized in that, Includes a flip screen (100) according to any one of claims 13-22.

24. The vehicle according to claim 23, characterized in that, The flipping mechanism (10) is located on the inner top wall of the passenger compartment of the vehicle. The screen assembly (20) has a first state and a second state. In the first state, the screen assembly (20) is attached to the inner top wall of the passenger compartment. In the second state, the screen assembly (20) is at an angle to the inner top wall of the passenger compartment.

25. The vehicle according to claim 23, characterized in that, The vehicle has control buttons in the passenger compartment, and the vehicle has a control module connected to the control buttons and the drive unit (104).

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